Rumack & Harmer Pediatric Dentistry
Elena Rumack, DDS:
Practice Profile Page


Elena Rumack, DDS, MS (Pediatric dentist)

Rumack & Harmer Pediatric Dentistry
Calabsas, CA

Rumack & Harmer Pediatric Dentistry
Encino, CA














A list of major dental treatments which I offer my patients:

Dental cleaning

White fillings


Pediatric dental care


Tooth extraction

Pediatric dental care

Laser frenectomy



Offers Even28 at-home™? No

Offers Even28 at-dentist™? No

Offers Invisalign®? Yes


Monday: 8:00 am to 6:00 pm

Tuesday: 8:00 am to 6:00 pm

Wednesday: 10:00 am to 7:00 pm

Thursday: 8:00 am to 6:00 pm

Friday: 8:00 am to 6:00 pm

Saturday: 8:00 am to 2:00 pm

Sunday: Closed


Monday: Closed

Tuesday: 9:00 am to 6:00 pm

Wednesday: 9:00 am to 6:00 pm

Thursday: 9:00 am to 6:00 pm

Friday: 9:00 am to 6:00 pm

Saturday: Closed

Sunday: Closed





Check out what some of our happy patients are saying about us:

Ryan P. from Woodland Hills, CA (Source: Yelp)


Calabasas pediatric dentistry is the absolute best. My daughter loves going to see Dr Rumack and her assistant, Jimmy. Everyone in the office is nice and goes out of their way to make sure the kids are comfortable. Even though she had to have 3 teeth extracted today to make room for others coming in, she still left the office with a smile on her face and a hug for Dr Rumack. If your kids don’t like going to the dentist, you are new to the area, it’s their first time at the dentist or you just want to make sure your child gets the best dental care possible then you need to do yourself a favor and go see Dr Rumack. One of the few bills I am happy to pay as I know what a great deal it is knowing my child is not afraid to go to the dentist and will have healthy teeth for life because of it. Thank you Dr Rumack, Jimmy and the whole gang at Calabasas pediatric dentistry.

Lila B. from Calabasas, CA (Source: Yelp)


Dr. Rumack and her staff make both of my daughters so comfortable. It’s strange to say, they look forward to going to her office. The atmosphere, TV, and prize box are all big incentives. She is not only kind to the kids, but also to the parents. I’m so happy that we can provide such a positive dental experience for our kids from an early age. Dr. Rumack is an excellent dentist.

Sarina G. from Los Angeles, CA (Source: Yelp)


I am so glad we came to see Dr. Rumack to evaluate my 8 month old baby’s tongue tie. I was so worried he was going to need surgery to get it removed, so it was a huge relief to be evaluated by such an expert as herself who assured us that he will be fine without the surgery.   Dr. Rumack was very thorough in her examination, and spent a lot of time explaining things and answering questions. I like that she is not one of those doctors that pushes procedures, but instead she truly evaluates things on a case by case basis and gives her honest opinion, which clearly can be trusted based on all her 5 star reviews.  Highly recommend her if you are in need of a pediatric dentist!

Pas K. from Cheviot Hills, CA (Source: Yelp)


We have been bringing my son to Dr Rumack for over 3 years now and we are continuously impressed with the professionalism and fun the staff injects into every visit. From the cute animal bibs to the tablets on the ceiling, my son loves every aspect of his dental appointments with Dr. Harmer and Rumack. He even reminds me now to make him a dentist appointment! I can’t recommend this pediatric dental office more highly. They deserve every star!

Heather P. from Woodland Hills, CA (Source: Yelp)


Dr. Rumack is amazing! We love her. She takes such great care of my son, and has helped him through two instances with baby teeth not falling out as they should! She has a tremendous spirit, is so engaging with kids, and knows how to develop the trust of little ones who may otherwise have a difficult time! Her love for her patients is so evident in everything she does for the patient and the sometimes nervous parents! We are so grateful that she is our dentist!

Meghan J. from Woodland Hills, CA (Source: Yelp)


I starting taking my daughter to Dr. Rumack when she was 18 months old. She went recently again at 2. I thought there was no way my daughter would let anybody near her mouth. Dr. Rumack was so amazing with her. She was so soft and gentle with my timid little baby. She did her check up and her hygienist did a great cleaning. I feel so comfortable taking my daughter here because I know she’s in the best hands. I highly recommend Dr. Rumack.

Briana C. from Burbank, CA (Source: Yelp)


My daughter is just about 6 weeks old, and was having trouble breastfeeding. Dr. Rumak (as well as a ENT) was recommended to us by a wonderful lactation consultant, who noticed that our daughter had a lip tie and possible tongue tie. Dr. Rumack was able to fit us in sooner than the ENT and so we decided to go in for a consultation and possibly a procedure to fix everything. The office is inviting, the staff are well informed and friendly, and Dr. Rumack is probably the kindest and gentlest dentist ever! She listened to our concerns, took notes, asked questions, was encouraging and incredibly professional. We decided to go ahead with the procedure and saw immediate results! It took a few more weeks for our daughter to get the hang of breastfeeding, but we are already on our way to success! We live in Pasadena, but will be returning to Calabasas when our daughter turns one, as I don’t think anyone could compare!!

Elyse L. from Calabasas, CA (Source: Yelp)


Dr. Rumack and her team are truly a blessing to pediatric dentistry! This review is long overdue.  To summarize my twin daughters had such a terrible experience with a dentist at 4 years old during a routine exam and cleaning that they resisted every dentist we took them to thereafter just for regular cleanings.  A friend recommended Dr. Rumack when one of my daughters needed fillings and a baby root canal. Dr. Rumack was patient and loving with my daughter. She and her team took the time to validate my daughter’s fears and to calm her anxiety.  They showed compassion, and above all respect for my daughter’s feelings and continue to do the same at each appointment.  Both of my daughters (and my husband and I),adore Dr. Rumack and her professional and kind team.  Dr. Rumack is the dental whisperer!!!

Laura C. from Canoga Park, CA (Source: Yelp)


Dr Rumack and her staff are truly amazing. I have been bringing my 3 kids to her for 7 years and my kids are genuinely excited to see her and the hygienists. They remember the sports they are playing and are very friendly.  My recent visit was because my son had chipped one of his molars and she quickly filled it.  My son was surprised how easy and quick it was, which makes dental appointments a positive experience. I would highly recommend Dr. Rumack to anyone. She puts kids at ease and a very friendly environment.

Georgia B. from Woodland Hills, CA (Source: Yelp)


We have been bringing our son to Dr. Rumack for the last 4 years (he is now 8).  I can’t tell you how much he enjoys coming to visit “his” dentist.  She is absolutely amazing… It is evident that she loves what she does by her warm touch, smile and caring ways!  We absolutely love her.  Recently we had issues with our insurance (he was accidentally dropped from our policy).  Not once did they hassle us over that…. They continued to see our son all while dealing with insurance.  Karina at the front desk is simply amazing!  I suppose I will have to write a separate review on Dr. Pair (the orthodontist) who is also such a wonderful presence at that practice!

Latasha C. from Woodland Hills, Los Angeles, CA (Source: Yelp)


Dr Rumack is lovely and her staff is friendly as well!  I have been bringing my twin girls to Dr Rumacks office for a couple of years now and have never had any issues.   One of my daughters had a loose tooth and had two teeth growing in behind it but the tooth wouldn’t come out.  She had to have 2 teeth extracted and my daughter who is very anxious and nervous was never afraid and never cried, and she cries over everything.  She didn’t even realize that she had been given a shot.  I would highly recommend Dr Rumack and her staff to anyone with children.  She truly is the tooth whisper.

Victoria C. from Los Angeles, CA (Source: Yelp)


AMAZING experience with Dr Rumack and all her office staff. When we were told by our doctor that our 6 week old baby had a lip tie and a tongue tie, I wanted to go to a place that was experienced in taking care of these issues. On their website, they have a full page dedicated to lip and tongue tie releases. They use a laser, which causes less pain and faster healing. We consulted with Dr. Rumack in the office and had the procedure done the same day. I was able to hold my baby the entire time. Dr. Rumack was professional and friendly. The office staff was helpful and the office was clean and bright. I could tell directly after the procedure that my baby’s latch for breast feeding had already improved. It’s best to get this procedure done as early as possible so that the baby’s speech and teeth will not be adversely affected by the ties. I would recommend Dr. Rumack 110% for this procedure. We will be returning once our baby has teeth for their first dental visit!

Rachelle L. from Kailua-Kona, HI (Source: Yelp)


Dr. Rumack and her team are a blessing. I’m glad I trusted these YELP reviews because my kids now actually don’t mind going to the dentist. Dr. Rumack is so nice and takes her time to make your kids feel comfortable and is always willing to answer questions and explain things. My 2 year old had her 1st exam and cleaning here and she sat through the whole visit by herself. My 5 yr old had some fillings done and did really well during the treatment. Parents are able to sit with their kids, there are tv’s with cartoons, toys and books in the waiting room, prizes and stickers as a reward after appointments, and the office itself is clean, bright and modern. Dr. Rumack’s office staff are really helpful and on top of things. They use email and texts for reminders, gave me a follow up call after treatment and even asked if my daughter needed a school absence note when she missed school for an appointment. Dr. Rumack and her staff meet and exceed my expectations of what a good dentist, especially a children’s dentist, should be like. They care about the little things and go the extra mile to make kids and their parents feel comfortable and well taken care of.

Emma P. from Westlake Village, CA (Source: Yelp)


Dr Rumack and all her staff are so great! They make going to the dentist a pleasant experience for my children. My daughter, who is 7, use to be so scared of going to the dentist that she would panic when we would go. I got Dr Rumack recommended from a friend 2 years ago and since then my daughter does not mind going to the dentist anymore. Very nice office with state of the art equipment and entertainment for the kids.
When I take my two kids in for a cleaning they are always taken care of at the same time to save my time. I am so grateful that I found Dr Rumack!

Sarah L. from Calabasas, CA (Source: Yelp)


My 6-year-old daughter absolutely looks forward to dental visits and does not fear it at all. This is the first and only dental experience she’s had. She loves watching the TV while the doctor and staff work on her, and looks forward to the toy reward after. My son, who just turned three,  also started regular checkups and was surprisingly calm due to Dr Rumack’s gentle and fun approach – he thought she was just counting his teeth (examining) and ticking them (polishing). He seemed so proud of himself when he was finished and I know he will remember this positive experience for future visits. Kids do not need to grow up dreading dental visits, and I know mine won’t. I am also proud to say that both my kids are cavity free and get compliments every time they visit!

Rachel H. from Calabasas, CA (Source: Yelp)


My daughter has been a patient of Dr. rumack since she was 3 and now is 6 1/2. Recently she had a small cavity that needed to be taken care of. I was nervous because I thought my daughter would be scared and it would be a bad experience. Dr. Rumack and her associate were so great that my daughter actually said it was “fun”. Not the reaction I expected at all. Thank you Dr. Rumack and team for making this trip to the dentist a stress free experience.

Peilun R. from Los Angeles, CA (Source: Yelp)


My son has been seeing Dr. Rumack since his second birthday and is now five. Dr. Rumack is caring, conscientious, skillled, and knowledgeable. She is also a member of the teaching faculty at the UCLA School of Dentistry. She and her staff have always done an amazing job at making my son feel comfortable and secure. She patiently educates me and answers all of my questions. She is indeed at the cutting edge of her field. I highly recommend Dr. Rumack to all parents with children.

Marnie S. from Hidden Hills, CA (Source: Yelp)


Dr. Elena Rumack, is A STAR!!! She is the best dentist I have ever met. My kids actually LOVE going to see her. She makes her patients feel relaxed and safe and is gentle. I trust her and my kids do too. She’s very patient and explains everything she is doing. Her office staff is great too! I have sent all my friends children to Dr. Rumack and they all love her too and have only the best things to say about her whole office experience!!!!!

Negin A. from Calabasas, CA (Source: Yelp)


Dr. Rumack is the most caring, gentle, and knowledgable pediatric dentist that our family has had the privilege of knowing. She has treated my young kids with cleanings and fillings and not a tear to date. Her office is equipped with the latest technology for dental care and the best entertainment to keep kids occupied. She is also surrounded by an amazing and punctual staff. Thank you for everything.

L. B. from Calabasas, CA (Source: Yelp)


My daughter has been a patient of Dr. Elena Rumack since the age of 2.  For the past 5 years my daughter has eagerly asked, months in advance, “when do I get to go to the dentist? I love her!”  Dr. Rumack has instilled a sense of care and comfort since our first appointment. Her tone, loving smile and gentle skilled hands have my daughter smiling from beginning to end.  The office staff are wonderful and friendly.  The equipment used is new technology and the space is bright, cheery and spotless. I have referred several parents to Dr. Rumack and do not hesitate for a moment to share our great experience!

Kim D. from Woodland Hills, Los Angeles, CA (Source: Yelp)


We came to Dr. Rumack after being referred to her by our lactation consultant about our daughter’s lip and tongue ties! Our daughter is only 2 months old and was having difficulty breastfeeding/latching. From the moment we walked into the office we were greeted warmly by the staff as well as they have taken great precautions during COVID times. We had our own little private room that was very nice and made us feel comfortable to be there. Dr. Rumack was able to assess our daughter to confirm to us that she had a lip & tongue ties! She explained to us the procedure to release the ties thoroughly and answer all the questions my husband and I had. She does the procedure with a laser. Being that our daughter is only 2 months old we were very anxious and nervous for her to get this done. But Dr. Rumack put us at ease. Within 5 mins the Procedure was done and was very successful. Our daughter handled it like a champ! (Sure a few tears were shed but she did great!) after the procedure Dr. Rumack showed us what she did and explained everything she did. She also gave us & demonstrated exercises we needed to do to help with the healing process. We had to come back in a week to see if our daughter was healing well which she was and we already noticed the big difference the tie release had with our daughter. Day 1 after the procedure our daughter was already feeding/latching better. After her 2 week post op check up everything has healed perfectly and baby was doing so much better overall. Everytime we came into the office we felt comfortable and was well taken care of. Our experience was great at Dr. Rumack’s office. We are so thankful for her and her team to help us get this done & for helping our baby girl in being even more successful in our breastfeeding journey. Thank you Dr. Rumack!

Kathy M. from Glendale, CA (Source: Yelp)


Dr. Rumack performed lip tie procedure for my newborn baby girl. That little flap of skin between your upper lip and your gums at the top can cause a lot of trouble if it’s too short. A gap between your front upper teeth being one of them. Luckily our pediatrician noticed it and send us to Dr. Rumack to take care of it. Dr. Rumack performed the lip tie procedure quickly and with the outmost professionalism. Her office staff, from reception to assistants, was courteous and sensitive to the fact that we were there with a two week old baby. I could not wish for a better treatment and the outcome of the procedure. Thank You Dr. Rumack for your quality work and wonderful support personnel.

Jayne P. from Calabasas, CA (Source: Yelp)


My daughter (Alexis) and son (Jonah) have been seeing Dr. Rumack for almost 10 years. My son’s first dental experience (with another pediatric dentist) was awfully traumatic and friends sent me to Dr. Rumack, saying she was the best. I was worried that Jonah was already damaged from his previous dental drama, but he was immediately calmed by Dr. Rumack’s soft nature. Soon after seeing Dr. Rumack for the first time, my (then) toddler daughter, Alexis, hit her mouth on a chair, tore her labial frenulum (the gums that attach the upper lip to the mouth) and damaged her brand new baby teeth. She needed immediate dental care. I called Dr. Rumack’s office, and although they were closed, they told me to rush her in. Dr. Rumack could not have been more reassuring and calm – my daughter was immediately a fan.   In the years that we’ve gone to Dr. Rumack, my children have had several procedures including gum surgery, and they still never hesitate when I mention that they have a dentist appointment. They love Elena, and her entire staff is as special as she is. The hygienists and office staff know all their patients names and make them feel loved from the moment they walk in the office door. The office itself is amazing!!! It is intimate and they only see few patients at a time. This makes the office tranquil and free of chaos. In addition to the beautiful and warm office, Dr. Rumack has the best-of-the-best technology. Everything is digital. My kids will be going to Dr. Rumack for as long as she will have us.

Mike F. from Westlake Village, CA (Source: Yelp)


Dr. Rumack and her staff are truly amazing, my wife and I have been bringing our daughters there for many years! The location and office are the best, everyone there is always friendly and they treat us as if we are family. Our daughters actually enjoy going to the dentist! Dr. Rumack is extremely kind & professional, her patience and attention to detail is superior and far exceeds our expectations, we can’t see ourselves going anywhere else. Thank you for taking such great care of our daughters and always having a welcoming location that we feel so comfortable going to. We will always recommend anyone we can to you!

Gwen F. from Woodland Hills, CA (Source: Yelp)


Highly recommend for kids. The office is very kids friendly. Kids get to pick their own show during cleaning visit. My son have been visiting this office for almost four years now. He never complain, he enjoys his routine dental check ups and cleanings.. no tears or fears. Dr Rumack is patient and good listener, you can ask question if you have any concern, she is more willing to provide any answer. The office is nice and clean. We never spend a lot of time at waiting area, not one of those u need to wait for an hour after arriving at your appointment time.

Tom G. from Calabasas, CA (Source: Yelp)


What a lifesaver! We have been going to Dr Rumack for years and she is great. Recently, our 9 year old daughter had a nasty canker sore that would bring her to tears a few times a day. We felt so bad but thought there was nothing to do for a canker sore – and they usually last a week or so. We spoke with Dr. Rumack and she told us about the laser treatment she does for canker sores. The treatment gets rid of them right then and there and is painless. It was great. Our daughter walked away from an 8 on the pain scale, down to almost nothing. What a relief! The best part is…SHE TREATS ADULTS TOO! We get them quite often, but we plan to suffer no more. As soon as we get one, we are getting it treated with Dr. Rumack. Finally a solution canker sores that really works!

Michelle G. from Woodland Hills, CA (Source: Yelp)


Previously, my daughter would scream her head off through an entire teeth cleaning (she had only had 2 before coming to Dr. Rumack’s office, but it was enough to make her terrified of going).  Upon arriving, the office staff already recognized that she was scared without me saying a word.  Noticed what she was wearing and asked if she liked Frozen because of her Anna dress she was wearing and offered to put on Frozen while she waited her turn.  She was instantly happier.  Then, once we went in, she did not want to sit in the dentist chair without me.  Dr. Rumack came over and got down on her level and just started talking to her.  She made her feel at ease in moments and more importantly gained her trust before she even started.  Dr. Rumack CHANGED THE WAY MY DAUGHTER VIEWS GOING TO THE DENTIST!  It was HUGE.  She did everything Dr. Rumack asked her to.  And I absolutely loved how she showed her the back of a sharp instrument and told her she was counting her teeth instead of scaping them with the instrument.   The difference between the last dentist we saw asking me to basically just hold her down versus Dr. Rumack’s approach really made me see how a pediatric dentist SHOULD be.  We are SO thankful we found her!

Olga M. from Woodland Hills, CA (Source: Yelp)


5 stars well deserved!  My kids LOVE going to see Dr. Rumack.  My daughter had 2 teeth extracted today, and the entire procedure was handled so well, she didn’t even know the teeth were out!  Not a tear or a whimper.  She left as happy as she came in. I highly recommend this dentist and dental office.  I can’t say enough about how much I like Dr. Rumack, and how much I appreciate the way she treats the kids and us, the parents.  Her main goal is for the kids to leave happy.  But I do also I want to say that the office is state of the art, and is immaculate.  All members of the staff are extremely kind and welcoming as well.

Highly recommend!

Ralph S. from Woodland Hills, Los Angeles, CA (Source: Yelp)


My daughter loves this place so much she now talks about becoming a dentist. I can see why she feels this way – from Dr. Elena’s kind and gentle touch, to her friendly and helpful hygienists to the nice people at reception – it’s all great. Each and every step of the process is as pleasant and easy as can be. My daughter had to have two teeth extracted and she was calm and collected the entire time. She watched a little “My Little Pony” on the TV above, had some gum flavored cleaning solution in her mouth and a toy from the treasure box on the way out. I truly can’t say enough great things about this practice.

Lauren W. from Chatsworth, CA (Source: Yelp)


Not many people I know LOVE going to the dentist, but I can honestly say that our boys do!!! They said they LOVE that they can watch Netflix, they have better toothpaste flavors then we do at home and they have nice people that work there. For those reasons and many many more we couldn’t ask for a better pediatric dentist office for our 2 boys! From a parents perspective, our experience is always amazing, from making the appointment to the follow up calls to check how our son is doing after a procedure. Thank you Dr. Elena Siu Rumack and your wonderful staff for your professionalism, kindness and for treating us like family

Tyler E. from Woodland Hills, CA (Source: Yelp)


Elena Rumack is an Incredible person and a wonderful children’s dentist!  My daughter was extremely hesitant and scared to go to the dentist after her prior visits with other dentists than had no bed side manor.  The second my daughter sat down in the chair with Dr.Rumack she was comfortable and happy.  Dr.Rumack, a mother of 2, simply has a way with kids.  I have referred her to numerous friends and we all love her!  And, her office is gorgeous! Can’t say enough good things about her!!!’

Marc S. from West Hills, Los Angeles, CA (Source: Yelp)


We had the wonderful pleasure of visiting Dr Rumack’s office on the recommendation from our delivering hospital, lactaction specialists and our newborn’s pediatrician to resolve what was holding back (initially) proper feeding.  We made an appointment for the 2nd day we got home from the hospital with a sense of urgency, Dr Rumack came in just for us, and we were going to address our newborn’s lip and tongue tie.  From an amatuer’s eye it didn’t look that bad, we knew it was holding back from eating well (loosing weight fast), but until we saw the before and after photos we now are super happy we went through it.  For all the parents with even an ounce of concern, for feeding reasons or potentially speech/other issues in the future, it’s a short laser procedure, took no more than 10-15m, a few checkups to follow, some home therapy to make sure it heals well, and you’re on the way.  As first time parents, everyone has an opinion, a recommendation, a suggestion, but this we knew for sure was the right thing to do.  Thanks to all the wonderful staff, and of course Dr Rumack, for such a welcoming and great first experience…and we hope to see them around our 1yr mark!

Rachel M. from Los Angeles, CA (Source: Yelp)


My child went in for a regular teeth cleaning, and we found that he had some mouth sores (either from a reaction to a certain food or toothpaste). His was in a lot of pain…on a scale of 1-10, his pain was at a 7. Dr Rumack informed me of a LASER treatment that would help to alleviate the pain and cure the sores. I was thrilled to hear about this and after the quick, painless laser treatment, which was non-invasive, his pain level went down significantly and instantly (from a 7 to a 0 or 1). She explained that the laser treatment increases blood flow to the affected area, causing it to heal almost immediately. I could literally see it healing right in front of my eyes! Only a few people know that this technology exists. If you suffer from canker sores and other mouth ulcers, I highly recommend this treatment!!! Her staff was incredibly attentive, compassionate and went above and beyond to care for him. He’s back to his happy, smiley self, thanks to Dr Rumack and her team.

Sarah A. from Woodland Hills, CA (Source: Yelp)


What a fantastic office! I have three young children aged seven, five, and four years old. All of them dread going to the dentist as well as the regular routine of brushing and flossing two times a day. I had heard wonderful things about Dr. Rumack and thought I would give it a try and bring my kids to her. All three kids were seen at the same time. They have a flatscreen TV that folds down for easy viewing for each of the children to watch their own individual show or movie of their choice.  By the time they picked their movie they had forgotten they were at the dentist. Everyone was very gentle with my children, and when they finished their appointment were able to choose from a box of toys in a treasure box. My kids said they could not wait to go back again. Since our appointment, they have all been very adamant about making sure they followed all the techniques they learned at the dentist with brushing and flossing. Thank you Dr. Rumack for an excellent visit!!

Greg A. from Calabasas, CA (Source: Yelp)


Three kids and each one loves their experience – 3 years and counting.  Like any kid, they have other Dr. visits for various reasons but all include complaints or bribes to get them to go willingly. Not when it comes to going to the dentist – Dr. Rumack has the kids dental experience dialed in and is a fantastic dentist.


Dr. Elena Rumack is a Board-Certified specialist in Pediatric Dentistry. She has been providing exceptional care to infants, children, adolescents and those with special needs since 2002. Dr. Rumack obtained her DDS degree from UCLA. After completing one year of General Practice Residency specializing in the care of patients with Special Needs, she discovered that working with children was her passion. Dr. Elena then returned to UCLA to complete another residency specializing in Pediatric Dentistry. For the past 5 years, Dr. Rumack has specialized in laser frenotomy services. Children may be born with a combination of conditions called a tongue-tie (ankyloglossia) and/or a lip-tie causing restrictions in movement that can cause difficulty with breastfeeding, and in some instances, other health problems like dental decay or spacing, speech and airway difficulties, and digestive issues. These issues can generally be corrected by a simple procedure done with our soft tissue laser.