Gregory Allen Johnson, MD
PediatricsInternal Medicine
Highlights
Age Groups Seen
- Infants and Toddlers
- Children 2-4
- Children 5 and up
Languages
- English
Gender
MaleAbout Gregory Allen Johnson
Dr. Johnson, of Summerville, SC, studied biochemistry as part of the Clemson University Calhoun Honors College. Graduating summa cum laude, he proceeded to the Medical University of South Carolina where he served as Student Government Association president. He is board certified in Pediatrics and Internal Medicine following training in those disciplines at the Greenville Hospital System University Medical Center. Currently, he cares for both children and adults admitted at Greer Memorial Hospital as part of the Greenville Hospital System and looks forward to serving at Heritage Pediatrics and Internal Medicine in Wren. For almost eight years Gregg and his wife, Jeanne, have been part of the upstate and enjoy hiking the hills, spending time with the people who live here, and the many opportunities our city has to offer. As part of an international family, Gregg has interest in languages, foreign cultures and medical work abroad. His medical interests include geriatrics, healthy living, adoption medicine and travel medicine. Gregg is a member of the American Academy of Pediatrics and the American College of Physicians.
Locations
- Prisma Health Heritage Pediatrics and Internal Medicine – Wren
- 1115 Wren School Road, Piedmont, SC 29673
- Get Directions
- phone: 864-859-0740
- fax: 864-859-9008
Expertise
Education
- Medical School: Medical University of South Carolina
- Residency: Greenville Hospital System, Internal Medicine/Pediatrics
Board Certifications
- Internal Medicine: American Board of Internal Medicine
- Pediatrics: American Board of Pediatrics
Insurance
- Absolute Total Care - Ambetter
- Absolute Total Care (Centene)
- Aetna
- Aetna Medicare
- Allwell Medicare - Absolute Total Care
- BCBS
- BCBS Blue Essentials
- BCBS PPC
- BCBSSC Blue Reedy Exchange Product (Upstate)
- BCBSSC State Health Plan (PEBA)
- BlueChoice Health Plan
- BlueChoice Medicaid - Healthy Blue
- BlueChoiceMyChoice Advantage
- Carelon Behavioral Health
- Cigna
- Cigna Medicare
- Companion Benefit Alternatives
- CorVel Workers Compensation
- Evernorth Behavioral Health
- FirstHealth (Aetna)
- Healthy Connections
- Humana - Healthy Horizons
- Humana Choice Care
- Humana Medicare
- Liberty Advantage
- Logistics Health
- Magellan
- MedCost
- Medicare (Traditional Fee-for-Service)
- Molina
- Molina Medicaid
- NHC Advantage
- Optum Behavioral Health
- Promise Health Plan
- SC Medicaid Healthy Connections
- Select Health Medicare
- Select Heath (First Choice)
- Spectera
- TriCare
- UnitedHealthcare Medicare Advantage
- Veterans Affairs Community Care Network - VACCN
- Wellcare (Centene)
Ratings & Reviews
4.9 out of 5
174 ratings, 34 reviewsThe Patient Satisfaction Rating is derived from patient surveys based on the likelihood to recommend this provider’s office.
- 5 out of 5 starsReviewed on 3/1/2026
I'm grateful for the wonderful service provided.
- 5 out of 5 starsReviewed on 2/24/2026
Nothing this Establishment is so awesome and Dr Johnson is and awesome DR
- 5 out of 5 starsReviewed on 2/21/2026
Nothing everything is great as usual.
- 5 out of 5 starsReviewed on 2/14/2026
Good visit !
- 5 out of 5 starsReviewed on 12/27/2025
You cover everything at every visit
- 5 out of 5 starsReviewed on 12/21/2025
Everything was great no problems at all
- 4 out of 5 starsReviewed on 12/17/2025
Make sure prescriptions are called in correctly!!!
- 5 out of 5 starsReviewed on 12/15/2025
As always Dr Johnson was the best Dr for my children's health! He always knows how to make you feel good as a parent
- 5 out of 5 starsReviewed on 12/14/2025
None, I this office I trust with my life. Literally
- 5 out of 5 starsReviewed on 11/16/2025
Continue exactly what is working now. Staff always very courteous. My provider always greets me with a smile and treats me with respect and is always concerned with my health, always seeking ways to improve. Keep up the GREAT work!
- 5 out of 5 starsReviewed on 10/19/2025
None everything was great!
- 5 out of 5 starsReviewed on 10/17/2025
Everyone was great.
- 4 out of 5 starsReviewed on 9/30/2025
My child has been going to this pediatrician for over a decade and she has a history of anxiety. So we scheduled a vaccine on a day where she could be seen immediately, but we waited for over 45 minutes. That was in the beginning of the month. And so we had to reschedule to this time so we wouldn't have to wait as long, but we still had a long wait time. And then when they took her back, they took her back to a blood draw area instead of to a room. It was just a lack of regard for her history with anxiety and how to better accommodate that when giving a vaccine. Thanks.
- 5 out of 5 starsReviewed on 9/14/2025
I am thankful for the nurses kindness and friendliness towards my children. Very grateful for nurse visits to get in and out for elective flu vaccines.
- 5 out of 5 starsReviewed on 9/4/2025
Everything was wonderful . I've been coming to see Dr Johnson for so long now it never disappoints.
- 5 out of 5 starsReviewed on 8/25/2025
All good!!!
- 5 out of 5 starsReviewed on 8/18/2025
Great care is always provided by Dr Johnson and his team.
- 5 out of 5 starsReviewed on 8/18/2025
All good now.
- 5 out of 5 starsReviewed on 8/11/2025
Wait time in the treatment room I thought was a little long .
- 5 out of 5 starsReviewed on 8/7/2025
No changes needed
- 5 out of 5 starsReviewed on 8/3/2025
I was extremely happy with my care!
- 5 out of 5 starsReviewed on 8/2/2025
I can not add any suggestions as I feel this practice, Dr. Johnson and nurses are always welcoming and friendly with each visit. I look forward to my visit. Not many people can say that. But I know that they are looking out for my health and well being. Keeping doing what they are doing.
- 5 out of 5 starsReviewed on 7/24/2025
Make appts that are available show online so it's easier to make appts online.
- 5 out of 5 starsReviewed on 7/13/2025
Dr Johnson is always great and makes sure to address all my concerns. I am very pleased with him and the practice. I wAs abl6 to get in the same morning that I called which never happens anywhere else.
- 5 out of 5 starsReviewed on 7/8/2025
Keep up with the good work and all the good people that you have .
- 5 out of 5 starsReviewed on 7/5/2025
Apparently the nurse didn't tell Dr Johnson I was ready to be seen. I waited for about 30 minutes in the room. I didn't mind but I did wonder what was taking so long. I assumed he had gotten behind since this was late afternoon.
- 5 out of 5 starsReviewed on 6/20/2025
Couldn't ask for a better provider!!
- 5 out of 5 starsReviewed on 5/26/2025
Can't think of anything, this is the best office that i go to, and I go to 2 more.
- 5 out of 5 starsReviewed on 5/21/2025
All was good
- 5 out of 5 starsReviewed on 5/11/2025
I can't think of anything. Dr. Johnson is always amazing with our kids. He remembers everything from past visits. Our kids all love him. He always puts us all to ease.
- 5 out of 5 starsReviewed on 5/8/2025
Everything was great. The nurses did take almost 25 minutes from the time the Dr left to get my babies shot. I had to go out and tell them we were still waiting. Other than that everything was great as always. Love Dr Johnson and all the staff very friendly and inviting.
- 5 out of 5 starsReviewed on 5/3/2025
We absolutely love y'all. We've been there forever and I think y'all are the best pediatrician office we've ever been to. So we love Dr. Johnson and y'all are wonderful. Thank you.
- 5 out of 5 starsReviewed on 4/27/2025
I have nothing to recommend as I have always felt respected and supported with each visit. I have completed trust in Dr. Johnson and his staff. Always a pleasant experience with each visit.
- 5 out of 5 starsReviewed on 4/27/2025
Dr. Johnson and the whole staff were amazing to deal with. So nice and so much empathy towards my situation. Not sure they could have done more they were so great.