Grady Kastner And Gornick
John Marshall Grady, DMD:
Practice Profile Page


Grady Kastner And Gornick
John Marshall Grady, DMD (Orthodontist)

Wexford, PA













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


Clear aligners


Comprehensive orthodontics

Space maintainers

Palatal expanders


Interceptive orthodontics


Offers Even28 at-home™? No

Offers Even28 at-dentist™? No

Offers Invisalign®? Yes


Monday: 9:00 am to 6:00 pm

Tuesday: 9:00 am to 6:00 pm

Wednesday: 8:00 am to 5:00 pm

Thursday: 7:00 am to 4:00 pm

Friday: 7:00 am to 11:00 pm

Saturday: Closed

Sunday: Closed





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

Melissa H. from Gibsonia, PA (Source: Yelp)


“I have had two children go through treatment at Drs. Grady, Kastner and Gornick’s office and will start my youngest there this year. My children have never once complained about going to an appointment, and my youngest is so excited to start her treatment. This is because your office and staff have made our experience pleasant, easy and worry free. Everyone that you encounter during your time in the office is professional, courteous and caring. The doctors and assistants go above and beyond to make your child’s experience a positive one. My kid’s smiles are more beautiful than ever thanks to your office! We left smiling too!”

Lori Baum (Source: Google)


We recently became a patient of GKG Orthodontics and the experience has been exceptional. From the very first appointment they made us feel very comfortable with the plan for our son. I expected to have struggles through the process with him, yet the experience has been seemless. The entire staff is very welcoming and friendly. We are thankful for having chosen GKG and highly recommend them!

Kelli 'Prejean' Koch (Source: Facebook)


We are so thankful for GKG Orthodontist for always being so flexible and accommodating. They go above and beyond to make sure my son, who has special needs, has a wonderful and fun experience each appointment.

J C. from Manhattan, NY (Source: Yelp)


I am currently a patient at Grady, Kastner & Gornick Orthodontics. My most recent appointment was a wire change. I must say I was quite impressed from my initial consultation. I’ve never had braces before and as an adult, my experience thus far has been outstanding. From the front desk greeting, consultation with Sarah, to my route visits with Catherine and the doctors. I’ve seen all three doctors, all of whom are friendly and professional. They answer all my questions, let me know what to expect on my next visit and I feel educated about the process each time I leave. Miss Catherine has been working with them for over 10+ years and I’m lucky to have an experienced and established person working on my braces. I remember when she called to follow up a few days after my first appointment. Her call was unexpected but highly appreciated — not many offices follow up with their patients these days and Catherine not only called but also sent a note in the mail. It’s things like this that, that make the expense and experience financially worth it. I truly got lucky with Grady, Kastner & Gornick Orthodontics. If you’re looking for an orthodontist for a child or an adult, I highly recommend Grady, Kastner & Gornick Orthodontics office.

T C (Source: Google)


Three of my four kids have had treatment from expanders and braces for phase 1 and phase 2. Each of my kids were accommodated for various issues inclufing anxiety and having special needs. Everyone has been wonderful from the moment we walked in each and every time. We’ve had emergencies that were promptly tended to. Everyone is very thorough and efficient for each appointment. It’s truly impressive to watch everyone work cohesively.

Krissy G. from Pittsburgh, PA (Source: Yelp)


Very kind and professional to all ages. While it may not have been the quietest orthodontist office (lots go here) we visited when looking for services, we definitely felt taken care of there. Both of my kids look forward to going to the orthodontist which makes the treatment process so much easier. The office may service a lot of people, but they definitely treat each individual patient as a person rather than a number. The staff is so pleasant and easy to work as a parent scheduling appointments, and helping calm any nerves for my kids through the treatment process. Definitely worth considering if you are in the market either for yourself, or children.

Makenzie H. from Allison Park, PA (Source: Yelp)


“Let me tell you how much I love my teeth. I can remember the day my mom took me to GKG Orthodontics to get my braces on and I remember walking out those doors in tears, so angry. But the day I had them removed, the first thing I could say to my mom, “thank you, I love my teeth!” My mom and GKG Orthodontics gave me the best gift I could receive, a beautiful smile”

Pay Taylor (Source: Google)


Kristen was my ortho assistant She was always super kind, and always made sure I was comfortable. I wouldn’t of wanted any body else to work on my teeth. Having somebody Working in my mouth has always been hard for me and Kristen made it easy. She was always excited with me about the progress of my teeth! Shes great and I appreciate her!

Mel Herbinko (Source: Google)


GKG Ortho has been serving up beautiful smiles for over 30 years and I am so proud to have been a part of this growing family for the last 27 of them. We have the best specialists and patient managers in the greater Pittsburgh area. We offer outstanding patient care/customer service along with the latest technology and treatments for our patients. I am very proud to work for such a wonderful office!

Kelly Arendosh (Source: Google)


We are so thankful we found GKG!!! Compared to other orthodontists, GKG is organized and friendly. The doctors and staff explain everything so both me and my 7 yo son understand what is going to happen. My son really likes how friendly the doctors are with him and the awesome ways they motivate the kids to take care of their teeth!! I highly recommend GKG!!

Wendy Graff (Source: Google)


GKG is simply the best!! I went through treatment 20 years ago and my teeth are still just as straight and because of them I still love my smile today! Now, my son has gone through treatment and I can’t stop looking at how great his smile is! Every person that works for GKG is so professional and so friendly. They make you feel welcome and comfortable as soon as you step through the door. I recommend this place to anyone who is looking for orthodontic work! As I stated…they simply are the best!!!❤️

Marissa Vulakovich (Source: Google)


I have come to the conclusion that they are as efficient (and pleasant) as Chik-fil-a. Top notch care! Orthodontic care is of high priority for my kids. There’s nothing I wouldn’t do for their forever smile. I’ve put all my trust in GKG to make the best decisions. I had no idea my adorable Emmy had a crooked jaw/smile that had to be fixed before her bones hardened. Phase 1 done and she loves her smile!! We HIGHLY recommend GKG and know Matthew Gornick personally. And he’s the best. ♥️

Meehleib Family (Source: Google)


We took our Girl Scout Brownie troop to GKG Ortho for a tour and to learn about Orthodontics. The staff was amazing with the girls. They got to make molds, put bands on braces, check out a scan, learn how to brush their teeth to get the “bad” stuff off and make cookies! The girls loved every second. Thank you GKG for such a fun outing. I also recommend GKG for orthodontics. My oldest son completed phase 1 and my middle daughter starts phase 1 next week! Everyone their is so friendly and so knowledgeable. We love GKG!

Katie McKenna (Source: Google)


Great experience at this amazing practice! These staff and doctors go above and beyond to ensure quality service from beginning to end! They are up to date on all of the latest technologies and also genuinely care for their patients AND their families! I recommend them to everyone I know! They are simply the best!!!!

Chrisanthus Family (Source: Google)


We are on our 3rd GKG Ortho patient and the experience could not have been better. Our first child had his “phase 1” six years ago and is in the middle of phase 2. Our second child finished phase 1 5 years ago and is ready to start phase 2. Our third is just finishing phase 1. All of the Orthodontists are fantastic, kind and caring and they explain everything that’s going on. Hygienists have always been awesome as well. Office staff is friendly and knowledgeable and the office is very clean. The incentive programs keep the kids eager to be compliant and the bagels and coffee (donuts on Fridays) are great for parents, especially when your child has an early morning appointment. We LOVE GKG!!!

Scoty Sezno (Source: Facebook)


The whole crew is awesome. I’ve never heard someone have a bad day and everyone seems to always smile. they’ve taken us last minute a few times and I’m so appreciative. I wish these guys were around when I got my braces on.

Kelly Abels (Source: Google)


I was referred here for my daughter’s teeth by her regular dentist. Couldn’t be happier. She had to have an expander put in and then eventually braces. When both came off I was amazed at her beautiful smile! This was after all only Phase 1. The doctors here are very knowledgeable and kind. Same with the staff. My daughter always looked forward to going and changing the colors on her braces. I couldn’t of imaged the difference in such a short time. Thank you!

Stacey Parker (Source: Google)


We absolutely love going to GKG. My boys have had an amazing experience being treated by GKG orthodontics. Their smiles are perfect! Everyone who works there are knowledgeable, kind and treat you like your family. The consult is complimentary and the process is stress free. The office is clean and welcoming.

M Owens (Source: Google)


My son started treatment with GKG this year. Everyone we have encountered, from the front desk to the doctors, has been extremely kind, helpful and knowledgeable. From the very first visit, I felt like we were thoroughly made aware of treatment options and expectations to enable us to make the best decisions for our son. Our teenage son actually enjoys coming to his visits and appreciates that the staff listens to his questions and input on his treatment. We have no doubt that we have chosen the best practice in the area!

Annette S. from Wexford, PA (Source: Yelp)


Both of my children have received orthodontic treatment from this exceptional practice. I have been impressed from start to finish with both experiences. The doctors were very caring and professional. The office staff was always friendly and helpful. I would recommend this orthodontic practice to anyone — young or old! I sincerely cannot express enough how pleased I was with their work! My children are always complimented  on their beautiful teeth. My grandson will be needing to visit an orthodontist soon and I know where he will go for treatment!

Jennifer F. from Wexford, PA (Source: Yelp)


From the moment we walked in the door everyone was friendly and professional! The front desk staff is extremely efficient and personable. The technicians are so great with my son and he looks forward to seeing her every visit to show her how well he’s been brushing!! The doctors are so knowledgeable and social with both the patients and parents! I couldn’t imagine an orthodontist office running more smoothly and with such great staff!!

Dawn O'Brien Knight (Source: Facebook)


My 12 year old daughter had her braces removed earlier this week. Her smile looks awesome and her teeth are perfect. Near the end of 2nd grade, she had an expander placed and was hesitant because she was the first one in her class to start the process. Here she is, about to start 7th grade and couldn’t be more thrilled to be finished. GKG is a professional, kind and knowledgeable ortho office and we recommend without reservation.

Rachel Hawili (Source: Google)


My daughters both need Orthodontic care. This practice came highly recommended by several friends and I knew why within minutes of our first visit. The thorough evaluation, including an explanation of the care plan, plus pricing was clear and up front. Subsequent appointments were always on time – We never had to wait to be seen. Everyone is so sweet and caring when working with the kiddos and the parents. I would recommend GKG to anyone.

GailAnn McKee (Source: Google)


GKG Orthodontics is AWESOME! Everyone is extremely kind and nice. GKG is a busy practice but they manage to make every patient feel like they are the only one that matters. Each patient receives personal attention from the physicians. Thank you for making each visit a great experience.

Aimee G. from Beaver, PA (Source: Yelp)


Can’t recommend enough. I have had a litany of dental problems and was thankfully referred to this practice after receiving some poor orthodontic treatment in the past. It’s not easy going in for orthodontic treatment as an adult when you’ve already had 18 months worth of braces–AS AN ADULT. Unfortunately, they have to fix mistakes made by others but I have complete confidence in the expertise of these three doctors.  I have had 2 exceptional visits so far not only due to the doctors but also, the courtesy and compassion of the office staff and technicians has been extraordinary.  I highly recommend.

Anne S. from Myrtle Beach, SC (Source: Yelp)


Service here is great. I was referred to them by my dentist, John Kuehn, when I was searching for an orthodontist. Exceptional quality in dental work. Great for kids. Everyone is very friendly, courteous, professional, and caring. They send email reminders for appointments. I cannot say enough about them.

Shannon R (Source: Google)


Simply the best. The Doctors at GKG are by far the most caring, knowledgeable and skilled doctors ever — the finished result of their treatment and care can not be matched! The entire staff from the front desk to the clinic assistants are genuinely friendly and upbeat which makes the office experience inviting, fun and positive….even as an adult patient getting braces for the 1st time. I will definitely be driving out of state to bring my children to GKG for Orthodontic treatment, no way I would trust anyone else.

Melissa Herbinko (Source: Google)


We found GKG Orthodontics through my sister who were patients here first. I am so glad I listened to her referral because the whole experience has been top notch. I always get explanations on how my son’s treatment is progressing and we are ahead of schedule to get his braces off. The office is so clean and always decorated for the holidays. I would recommend this office to anyone looking for excellent care!

Tyler Lyons (Source: Google)


This is by far the hardest review I’ve ever written; not because I have anything negative to say but because I could write a book with all of the positive words I have to say about GKG. My relationship with Drs. Grady and Kastner began 27 years ago when I was a child and now my children have become patients. I take great pride in my perfect smile and it’s all because of the treatment I received, so of course I sought out Drs. Grady and Kastner when I knew my children had inherited my mouth. The Drs. and their staff are focused on the patient and what the best plan of treatment will be. I still to this day receive compliments on my smile and I make it a point to say, “Drs. Grady and Kastner!”

Kathy Werner (Source: Google)


I went to see Dr. Grady today for a consult. My dentist referred me there because she believes that I keep chipping my front tooth as a result of my bottom crooked teeth hitting it. 5 of our children and my husband have been patients there. They all had great experiences and now have beautiful smiles. As a 53 year old woman with relatively straight teeth, I never considered orthodontia but the health of my teeth, as I age, is a concern to me. Wow, what an impressive office this is! From start to finish, the level of professionalism throughout the office was very apparent. I was greeted by the warm and friendly receptionists who made me feel welcome and comfortable . I was then cared for by the friendly staff, all of whom were incredibly competent and knowledgeable as they went about their specific tasks ( that is, pictures, X-rays, scanning and overall education) Dr. Grady was also very friendly and extremely knowledgeable as he took time to present the best plan of care for me. I was always extremely impressed with this practice from when our children were patients there, but now , as a patient myself, I’m happy to say that the office is even more impressive today than ever. This is a testament to the doctors there who have perfected their skill and the high level of energy and kindness of the staff. I HIGHLY recommend them. Best in Pittsburgh for sure!

Maria Madeja (Source: Google)


I wanted to share that I loved my experience with GKG Dr. Grady took special care with my case making sure I was happy with the results and in a timely fashion. I also spent mostly all my visits with their assistant Kristen Gabriel. She made me feel very comfortable and went the extra mile to explain all the procedures. Kristen has a gentle demeanor which is very important with orthodontics. I would highly recommend her.

Tomi Howard (Source: Google)


Wonderful experience. This is our second time around with phase 1, once for my older son, and now for my second son. Each time we visit, everyone from the front desk staff to the doctors to the dental assistants could not be any kinder or more helpful. My second son was very nervous to get his expander, and Amanda and Dr. Grady both made him feel calm and actually excited about getting his expander. Thank you!

Bridgett Bilenski (Source: Google)


Melissa and the staff have been coming to my school for the past 4 years, to educate our 2nd grade students during Dental Health Month. The kids LOVE the lessons!!! The lessons are engaging for the students, and the teachers cannot say enough positive things about having them come into the classrooms too! Each year, Melissa is wonderful at changing up the lesson in some way. Thank you to GKG Orthodontics and especially Melissa, for getting the kids excited about dental health!

Suzanne Martin (Source: Google)


GKG Orthodontics offered to give a behind the scenes tour to my 6th grade Girl Scout Troop- wow!!! What an amazing experience for the girls, the staff was super friendly, generous and happy to share their knowledge. They all came into the office on their day off to spend time giving a tour and answering questions. Wonderful, talented and professional!

Jamie Bender (Source: Google)


I have had nothing but positive experiences with this group of professionals! The office staff are ALWAYS friendly and accommodating. Dr. Gornick is gentle and kind and my children look forward to seeing him. I never felt rushed or hurried through the decision making process with Dr.Grady and Sarah.The consultation process is superior to other providers I have worked with. No questions were left unanswered. I felt very well informed in my decision making. My kids are always eager to visit. They love the kids’ self check-in process, the rewards program, making themselves a bagel, making me a coffee, and playing video games! I have referred multiple families, that are dear friends of mine, to this practice and they never disappoint me! Kudos to to the whole team:-)