Empresa Dental
Trung Ngo, DDS:
Practice Profile Page


Empresa Dental
Trung Ngo, DDS
Rancho Santa Margarita, CA













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

Dental cleaning

White fillings


Inlays & onlays


Clear aligners

Sleep apnea therapy

Porcelain veneers

Teeth whitening

Dentures & partials

Root canal treatment

Tooth extraction

TMJ treatment

Dental implants


Offers Even28 at-home™? No

Offers Even28 at-dentist™? No

Offers Invisalign®? Yes


Monday: 8:00 am to 5:00 pm

Tuesday: 8:00 am to 5:00 pm

Wednesday: 8:00 am to 5:00 pm

Thursday: 8:00 am to 5:00 pm

Friday: Closed

Saturday: Closed

Sunday: Closed





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

Joel D. from Laguna Beach, CA (Source: Yelp)


I started seeing Dr. Derick and Dr. Ngo to get a second opinion on a treatment plan. In the month since that first appointment I have seen them for scheduled and emergency issues and they, and their staff, are amazing. They have made me feel like I have been a patient of theirs for a decade and not a month. They have gone above and beyond my expectations and I cannot recommend them strongly enough. They will take great care of you, do a professional job, and make you feel part of their “family”, something that I have found very lacking in my prior dental experiences.

Trina S. from East Los Angeles, CA (Source: Yelp)


Moving to Orange County from Chicago, I needed to find a dentist. I was referred by a friend to Empresa Dental, but didn’t know if I would be satisfied (I’m used to my dentist in Chicago – was going to him for many, many years). To my surprise, Dr. Derick, Dr. Ngo and staff have exceeded my expectations. From their professionalism to friendliness, I cannot say enough good things about them. I had some dental work done recently, and I was terrified. Dr. Derick did an excellent job making me feel comfortable, keeping me informed about what he was doing and why he was doing it. I then had to go back for round two of dental work, and Dr. Ngo did the procedure this time. Highly skilled and very compassionate making me feel at ease once again. They both took time to discuss a plan of treatment that I can do at home showing me that they really do care. I would highly recommend them to anyone – you won’t be disappointed.  You’ll be in great hands with the team at Empresa Dental! I am very fortunate to have found them.

Andrea W. from Trabuco Canyon, CA (Source: Yelp)


My entire family has been going to Empresa for years and the staff is very personable and professional.  Jo Ellen has cleaned my teeth for over 15 years and she has always been so thorough with cleaning my teeth and is very personable.  Dr. Ngo and Dr. Derik are very knowledgeable and skilled.  Empresa also provided my son with Invisalign and they did a great job throughout the treatment process.  Super friendly front desk staff as well.

Michelle M. from Newport Beach, CA (Source: Yelp)


I highly recommend Empresa Dental!!! My family of 5 siblings, parents and I have been going here for many years. JoEllen is the best dental hygienist ever! She is always so caring and considerate when cleaning my teeth. I look forward to my dental cleaning…who can say that? ME!!!! You can tell Dr. Ngo really cares about his patients and always says hello when I visit. A while back my X-rays indicated I might need to replace an old crown so I got all numbed up and was ready to start the expensive procedure when Dr. Ngo dug around with the tool and said although the X-rays indicated it I could hold off on replacing the crown for another 6 months to a year. This saved me about $1000 or more. I am grateful he did not proceed even though it would have been easier to do so. He automatically gained my trust and as such I want to spread the word about his dental practice. The office staff are all so friendly, it is incredibly clean and although I live in Newport Beach I drive to RSM because that is how much I love this dentist!

Sean H. from Newport Beach, CA (Source: Yelp)


I have been coming to this office for about 20 years now (under multiple owners) and the care and cleanings have been great since day 1! I would recommend this dentist to anyone in the area or outside (I drive over from Newport for my regular cleanings). JoEllen is great and I always leave knowing that I received the best care and recommendations for my oral hygiene. Empresa Dental now carries almost all insurance providers, which was a problem for me before as my PPO was out of network (and I still went). See you next time, thanks!

Lilian M. from Trabuco Canyon, CA (Source: Yelp)


We moved to CA a couple of years ago and were lucky to have Empressa Dental recommended by a new friend.  They continue to live up to her recommendation. The doctors and hygienists have been excellent. They have the latest equipment, including showing me (and especially my kids!) the cavities and areas that could develop into them on screen in real time  Highly motivating to take better care! The front office is the icing on the cake.  Friendly and extremely helpful, they go above and beyond to make sure your whole experience is positive.

Cheryl H. from Lake Forest, CA (Source: Yelp)


Both Dr Ngo and Dr Derek are exceptional at their work, and my teeth have never looked this good. My front teeth were a mess beforehand and a difficult case to take on, and it’s amazing what they did to fix up my front teeth, especially the attention to detail. The staff are wonderful, and they always make me smile (pun intended haha). Thank you all! You’re the best!

Ashley W. from Chelsea, MA (Source: Yelp)


The best dental team around!! I’ve been coming here for as long as I can remember (went next door as a kid), and they are amazing. Clean, friendly, helpful and efficient! Good dentists and offices can be hard to come by, but I promise you won’t be disappointed with their services and kindness. Front desk is ALWAYS so nice and accommodating.

Sarah C. from Rancho Santa Margarita, CA (Source: Yelp)


My dad goes here and recommended that I do too. The facility is very nice and clean. The staff here is wonderful! Everyone is so kind and keeps your well-being as their first priority. My dentist, Dr. Ngo, is very knowledgeable and explained what I needed done thoroughly and treated me well. My hygienist Mary is so kind and great at what she does! I enjoyed having my teeth cleaned by her. Front desk receptionists are super kind and helpful as well. Love it here!

Theresa G. from El Cajon, CA (Source: Yelp)


This office has an incredible staff from the front office team, Karen and Jennifer to the back office with my hygienist, Jo Ellen and the dentists, Dr. Ngo and Dr. Derick! Jo Ellen helped improve my oral hygiene and get me back on track. She is the best hygienist I have ever had. I began coming here when it was Dr. Rockeys office and have continued to come back with the new dentists! They have proved to be very thorough and their work is beautiful. They care about their patients smiles and overall oral hygiene, which I appreciate. I highly recommend this office if you are looking for a dental home.

Lori J. from Rancho Santa Margarita, CA (Source: Yelp)


I cannot say enough about the dental practice and the people who work at Empresa Dental. My hygienist, JoEllen Goforth is very thorough with her examinations. I was totally unware that I had a  pre cancerous lesion under my tougue that she found! I had surgery twice on it and she continues to watch it carefully. Also Doctor Ngo and Doctor Derick are the most kind, gentle, and caring denists I know. I highly recommend visting their friendly office to all. You will not be disappointed.

Nicole F. from Rancho Santa Margarita, CA (Source: Yelp)


Been going here for many many years now and the staff is so wonderful! No matter if you’re there for filling a cavity or scrapping the tartar off your teeth, they do everything they can to make you comfortable. Definitely a plus that they have individual TV’s at each station. The staff treats you like family and not just another name on the clip board. LOVE THIS PLACE!

Jennifer L. from Rancho Santa Margarita, CA (Source: Yelp)


I have been coming here for a few years now. I started coming when it was Dr. Rockey’s practice. This office is very modern and up to date but still has a homey feel to it. It’s really convenient that it’s in a  retail center, not in a huge medical building. You can literally arrive 20 seconds before your appointment time and park right in front of the front door. The front office ladies are all very sweet, most of them stayed during the transition ,and they are accommodating with appointments and/or changes. I love  my hygienist, Shelley. She does a great job and is really fun to talk to. Dr. Ngo is very knowledgeable and puts his patients at ease. He always takes time to come over to the patients and say hi and also review the x-rays. I haven’t been up sold on a bunch of services that I don’t necessarily need, yet they make great suggestions and it seems like they have the patient’s best interest in mind.

Ira G. from Rancho Santa Margarita, CA (Source: Yelp)


There is only ONE dental group to use in RSM or nearby communities; Dr NGO and Dr Derek! These guys and their team are true professionals and take a conservative approach to dental care and work. They are not out for a quick buck. In my late 50’s now and have had many dentist experiences and none have come close to this team. I had multiple crowns and some other work done and never felt pain, plus these Dr’s truly care about their patient’s. They even check in with you in the evening after complicated work is done to make sure you are doing well. Unheard of but very welcome to me! If you need dental work, or even a second opinion, go see these guys!

Mark K. from Mammoth Lakes, CA (Source: Yelp)


Empresa Dental – Service with a smile!!! Great local dental team and super friendly staff. Dr. Ngo and Dr. Derek do an outstanding job for the entire family. They provide excellent service and make you feel at home. They are also great with kids as you transition from a pediatric dentist to one focused on adult teeth. Chelsie in the front office helps interact will with your insurance teams to make sure you always know what is covered under your plan and what is out of pocket. They also have great options for every type of dental service you may need. If you are looking for a great local dental team – you can’t go wrong with the staff at Empresa Dental.

Hung D. from Tustin, CA (Source: Yelp)


Dr. Derick and Dr. Ngo are awesome. They have great bedside manner and do a good job explaining what is wrong and the course of action to be taken. The office team is friendly, accommodating and communication is excellent. Parking is easy and conveniently located right off the freeway. Great Mexican market with food options next door.

Greg H. from Capistrano Beach, CA (Source: Yelp)


After relocating to South O C I was in the search for a new Dentist, I was highly recommended to Empresa Dental, When I arrived I was greeted by a professional front desk staff, then introduced to Dr Derick for my evaluation, I was impressed by their modern equipment and how professional they were. After my evaluation Shelley their Dental Hygentist took over and cleaned up my teath, I actually was offered the white glove service, which was pretty cool in my opinion, ( head phones to deaden the noises which helped out )once cleaned Shelley introduced me to Dr Ngo, at that point they recommended a deep cleaning & minor dental procedures with out an up sale. I can highly recommend Empresa to my family & friends, P.S. a lot of there employee’s have been with this practice for quite some time, that tells me a lot about a good ran company.

Kaitlyn B. from Lake Forest, CA (Source: Yelp)


Love, love, love this office. Dr. Ngo and Dr. Nguy are a great combo..super informative of anything you ask them about. I had a root canal done (I’m a scaredy-cat) and Dr. Ngo was SO gentle and caring, and really makes sure you are comfortable. Every hygienist working there has their own personality, which brings an interesting flair to the practice. You can kinda pick who you vibe with the best and who you prefer to clean your teeth. I have been a patient for awhile now, and it’s always an enjoyable experience. 🙂 Would definitely recommend checking this office out if you’re looking for a new dentist.

Gretchen S. from Trabuco Canyon, CA (Source: Yelp)


I highly recommend EVERYONE at Empresa Dental. I have had work done by both Dr. Ngo & Dr. Derek, and I was very impressed. I have a small mouth & TMJ. Both doctors were very considerate of my comfort level as they worked. The entire staff is terrific and they treat you as family. Dr. Ngo is highly skilled, honest and wants the best for his patients. I highly recommend everyone in this group.

Sarah Cabug (Source: Google)


My dad goes here and recommended that I do too. The facility is very nice and clean. The staff here is wonderful! Everyone is so kind and keeps your well-being as their first priority. My dentist, Dr. Ngo, is very knowledgeable and explained what I needed done thoroughly and treated me well. My hygienist Mary is so kind and great at what she does! I enjoyed having my teeth cleaned by her. Front desk receptionists are super kind and helpful as well. Love it here!

Caitlen S. from Lake Elsinore, CA (Source: Yelp)


I had a filling break out of nowhere I was in a lot of pain. The doctor and staff were so nice and helpful! They got me in right away, rushed to get me out of pain and were gentle as can be. The staff actually cared how I was feeling and that me feel even better. The Dr was knowledgeable and completely honest with me. No run around just black and white. I highly recommend you give them a try.

Ken A. from Coto de Caza, CA (Source: Yelp)


Dr. Nguy is my primary doctor since Empresa Dental opened and I am 100% satisfied every time I come in for my 6 month check up and cleaning. They do a very thorough job, in fact when examining my wife they discovered a lump on her throat, they highly recommended she get it checked out and sadly it was thyroid cancer, thankfully it was caught early enough that surgery was solution. And she is now cancer free! Thank you for saving my wife!!

A. from Seattle, WA (Source: Yelp)


I love this dental office ! Efficient, tech savvy, and always on time Friendly and professional staff Drs Derick and Trung have great energy, they took their time explaining treatment options and going the extra miles making sure I am good during and after treatment Immaculate office, they don’t cut corners, visit them once, you’ll love them!

Bobbie W. from Laguna Niguel, CA (Source: Yelp)


Approximately 3 months ago I fell on some stairs while moving. I chipped my front tooth. (Hillbilly status). This was literally 2 weeks after I had had my teeth cleaned and received comments from Dr. Trung about my great smile. I called the office the day after my fall, this was a Friday and the Dr. was at a seminar, fortunately I spoke with Jennifer (who is absolutely the bomb) and explained my situation. She called Dr. Trung and apparently expressed my desperation to have my tooth fixed. She scheduled me an appointment and by about 3:00 that afternoon my tooth was professionally and beautifully fixed. I can’t even begin to express how grateful I am for Dr. Trung and Jennifer taking the time and effort to help me out and making the whole situation as quick and painless as possible. I love you guys!!!

Amy C. from West Lafayette, IN (Source: Yelp)


I am SO impressed by Empresa Dental! I am really nervous going to the dentist, but after my appointment here, I am not worried for the next visit. I met both Dr. Ngo and Dr. Nguy and my hygienist was Shelley. They were all great, including the front office staff, everyone was so kind and caring and made me feel so comfortable. Dr. Nguy spent a lot more time with me than my previous dentist and explained everything in detail throughout the exam. I found out the reason for my sensitive teeth, something I never even knew before and I ended up needing a cavity filled and they were able to fill it on the same visit, making it so convenient. When Dr. Ngo found out that I’m afraid of the numbing needle he took extra care to make sure I was as comfortable as possible and it didn’t really hurt at all, I was very pleasantly surprised. Then I had my cleaning with Shelley and she was so thorough and made my teeth feel extra clean. I also liked that she gave me a mirror and showed me some brushing and flossing tips to keep my teeth clean. Overall the best dental experience I’ve had before and I would highly recommend Empresa!

Nicholas C. from Riverside, CA (Source: Yelp)


I have been seeing Dr. Derick for the last 4 years dating back from his old office. I drive a good hour to see him. If I didn’t trust him I wouldn’t make the hour drive. He is GREAT along with Dr. Ngo, the front counter staff and especially Joellen. Joellen does a fantastic job cleaning my teeth. She pays a great attention to detail and is very concerned for patient health. This is what separates herself from other hygienist. Thank you for all your advise it really does play a factor in my daily hygiene. See you at my next appointment!

Kimberly W. from Rancho Santa Margarita, CA (Source: Yelp)


I AM REFERRING THIS DENTAL OFFICE – PLEASE READ MY STORY. Hi my name is Kimberly and when I was young I was traumatized by a dentist that unfortunately stayed with me into my adulthood. It is extremely hard, wait did I say extremely hard, I meant to say EXTREMELY HARD for me to have a needle stuck in my mouth without feeling like I am going to faint. I have been going to this same office for over 25 years and I see JoEllen for my teeth cleaning (SHE IS AMAZING) and I have obviously gotten to know the team very well and have built up a trust knowing they will do EVERY thing they can to make sure I am as comfortable as I can be before they even begin any procedure. Well as you may know the dentist there for the past years (not sure how many) retired. This was a dentist I TRUSTED and he knew how hard it was for me to have dental work but he promised he would not hurt me and he kept that promise, which made it possible for me to easily go in and have fillings, veneers, crowns, etc done. OK moving forward to today. I woke up and realized I broke a tooth, well the veneer on my tooth broke off part way and I would need to have it fixed which meant having to have a shot in my mouth. I had only met 1 of the 2 new dentist there once and it was only because I was having JoEllen clean my teeth and he checked them afterwards. He was very very nice but today I would have to let someone I did not know or trust whatsoever put a needle in my mouth and do a procedure. Let’s just say I WAS A MESS!!!!!!!!! I know this is a long review but this one is IMPORTANT TO SHARE. I actually was given the shots by Dr. Derek and Dr. Ngo did the procedure. THEY WERE SO AMAZING!!!!!!!!!!!!!! I did not feel a thing!!!!!!!!!! They were so gentle and kind and caring and I can’t say THANK YOU enough for putting up with my extreme anxiety today. I am so thankful for both of you. Thank you Jennifer and Alex and to my rock, JoEllen, you are the best!!!!!!!!! I have to go back in 2 weeks to have the permanent veneer put on but I feel no anxiety whatsoever. I TRUST both of the Dr.’s and I am so thankful for them.

Libby M. from Rancho Santa Margarita, CA (Source: Yelp)


I had a cavity filled this morning. I have one word to describe my experience. Fabulous. The doctors are great and walked me through the whole process. Which I might add was pain free. Jennifer at the front desk is the best and Jo Ellen my hygienist is just great. I will add I am in the dental field myself and I am as scared as anyone else but they mad my visit easy and comfortable. So if you are looking for a great office look no further.

Bertha V. from Lake Forest, CA (Source: Yelp)


I started seeing Dr. Ngo when he was at Coastal about a year ago. I had such a bad experience with my last dentist that I didn’t go for about 5 years, it took a very painful broken tooth to look for a dentist asap. He made me feel completely at ease once he knew how nervous the dentist made me. He never lectured me for my lack of dental care (he has great chair-side manner), instead he outlined a plan to get my teeth healthy again. So when I went in for an appointment and found out he was gone, it was really upsetting and painful for me. I was lucky that the hygienist who was treating me after my last painful visit still kept in touch with him and let him know how upset I was. About 4 weeks after he left I received a call from him letting me know that he was setting up his own practice in RSM. I was so happy and shocked that he took the time to personally contact me. Don’t know how he found me, but I was happy camper. I have now changed over to Empresa and the staff is amazing. Everyone is very welcoming and helpful. Jennifer at the front is great with billing questions and scheduling. She never makes you feel dumb for asking questions and is very good at breaking things down. JoEllen is such a sweetheart. I have only had one appointment with her, but she made me comfortable while she was taking care of me. Like Dr. Ngo, she explained everything she was doing and made sure that I felt no pain. I don’t cringe anymore when I have to see the dentist and that is all thanks to Dr. Ngo and his incredible staff.

Taeha J. Lake Forest, CA (Source: Yelp)


Love this place! As much as a man could love a dentist’s office anyway..heh Dr Ngo is very thorough and takes his time explaining exactly what is wrong and what needs to be done. A lot of Dentists and Doctors seem to neglect this portion of the job, because they assume if they know what’s going on that’s all that matters. I would like to know too!! Also, if you are looking for a gentle dentist, this is the place to go. I barely felt anything when I got some cavity work done. I’ve been in 3 times and the dental hygienists and rest of the staff are always really welcoming and nice as well too. Normally I hate going to the dentist but these guys make it much more bearable.

Jack S. from Rancho Santa Margarita, CA (Source: Yelp)


If you are looking for a new dentist in RSM search no more. Very friendly staff that makes you feel right at home. When Dr. Ngo found out my insurance wouldn’t pay for a mouth guard he offered to cover the costs and told me the health of my teeth was more important. Exceptional services with a dentist that truly cares about you.

Radka P. from Plzeňský kraj, Czech Republic (Source: Yelp)


What an amazing experience this morning! Everyone is very nice and welcoming, specially doctor Ngo is in my opinion a very skilled professional who is also sweet and caring. He explained everything so thoroughly and took time to go above and beyond for me to be satisfied with the dental services. I have seen a lot of dentists over the years but this one is really top notch!

Jess N. Elite from County, CA (Source: Yelp)


It’s been a little over 9 months since my relocation and thankfully the transition has been good. While I am formidable, when it comes to adapting to life changes quickly, I am no eager beaver in terms of looking for new doctors. My last dental relationship in the bay area lasted over 17 years. Therefore, the thought of acquiring a new one has given me some anxiety. After spending a few weeks combing through Yelp!, and feeling hopeless, I was referred by family to check out Empresa Dental. Empresa Dental is located in a sectional plaza with ample parking. The office is clean and designed with modern interiors. The open seating area can easily accommodate 10 adults comfortably. A flat screen television and reading materials are also available in the waiting area. Beyond the waiting area are subdivided rooms, each one supplied with a wall mounted television. This is actually my third visit, and each time it’s been positive. 1st: Consultation, x-rays and a cleaning 2nd: Needed to check on a sensitivity issue I had with my left molar 3rd: Second cleaning I’ve had the opportunity to briefly meet Dr. Ngo and Dr. Derick. They’ve truly made each experience a positive one. Both providing the utmost care in their deliverance of any dental guidance. Shelley, my dental hygienist, is very detailed orientated and informative. During my first visit with her she had asked me if I was aware of my torus palatinus, a bony protrusion on the palate. I simply shook my head back and forth, she then proceeded with explaining to me what that entails. She definitely left a good impression in my mind. From that moment on, I knew I was in great care. Looking forward to my long future with Empresa. They are a keeper! 😉 My moto, “Good oral hygiene practice will promote a healthy and happy smile.” What you need to know: – You will be welcomed by a staff of seasoned A-players – Open weekdays, Mon-Thurs – Next door to Orthodontics Dentistry for Children – They offer a really cool post cleaning care kit (see photos) – There’s a raffle opportunity going on right now! – Call to check types of insurance being covered – Coat/purse hangers are available (small detail that does not occur often) – If you’re hungry, there are many options to grab and go within the plaza

Genalyn S. from Corona, CA (Source: Yelp)


PAIN NO MORE!! Like most, I avoided the dentist because of fear of pain. I was proven wrong!! From the time I entered the staff was friendly and professional. Alex was very gentle with her care and Dr. Derik was thorough and explained everything clearly regarding my dental needs. The hygenist Shelly was also great and really took her time making my teeth and gums feel amazing. I highly recommend going here!! You will be well taken care of!!

Bryan M. from California (Source: Yelp)


I can honestly say I am extremely pleased with this office and everyone that works there! I have moved across the country and was a very big fan of my dentist back home for 20+ years. After a few new dentists in between my moves, I have finally found my new office here at Empressa Dental. They have accommodated me not only as a new patient but with a few emergency needs as well. They are very detailed, friendly and make sure they take the best care possible. My wife is also going here and was very pleased as well. Thank you for the great care and fair prices!!! We are thrilled to be patients here and I recommend them to anyone looking for a great dentist that cares and will take excellent care of you!


Long standing dental office formerly with Drs. McCann/Friedman and recently Dr. Rockey. Through it all, a super star front staffer Jennifer as patient care liaison. Back staff Karen, Alex and the wonderful hygiene team of JoEllen, Shelley and Mary who always make sure patients leave their chair content. Dr. Rockey hand picked and passed the baton on to Dr. Trung Ngo to continue his excellence. Dr. Ngo was hired as an associate with Dr. Rockey because of his hygiene background, a preventative dentistry mindset and patient first attitude. Originally trained a hygienist, Dr. Ngo went back to get his DDS degree at USC. Dr. Ngo was a part-time faculty for six years for both the USC hygiene and dental programs. After a year with Dr. Rockey, the reins of the practice was passed to Dr. Ngo. With preventative and cosmetic dentistry in mind, Dr. Ngo brought Dr. Derick Nguy to join, a UCLA grad to help round the practice out with implant dentistry, root canals and minor surgeries. Dr. Trung Ngo was born and raised in the heart of the midwest in Indianapolis, Indiana. He grew up a huge sports fan and attended Indiana University at Bloomington for undergrad. Majoring in Biology, he graduated and decided to further his education with his Masters in Biology at Purdue Indianapolis. After completing his Masters in 2000, he decided to relocate to sunny California to figure the next step in his life. One of the things he looked into was the dental profession and he volunteered at a free clinic in Share Our Selves in Costa Mesa. He liked the idea that it combined his passion for art with the ability to help people. At that clinic he met another volunteer, his friend and now practice partner Derick Nguy and the rest you can say is history. Fast forward almost 20 years and Dr. Ngo has graduated with a degree in hygiene and one in dentistry at the prestigious University of Southern California. He was part-time faculty at USC from 2004 through 2010. He met and became an associate for Dr. Dana Rockey and worked with him until Rockey handed the practice to Dr. Ngo. Continually striving to get better he and his team take continuing education to be on the current edge of dental technology. With a team of Dr. Derick, the best hygienists around and a caring staff, Empresa Dental caters to giving patients dental therapy with thought and care. Dr. Ngo is an adoring husband and doting father. He loves sports, fantasy sports, collecting sports memorabilia, traveling, art and considers himself an amateur “foodie”.