Online Bill Pay
Skip Navigation Links Home / Physicians / Physician Profile
Stay Connected
Subscribe to our newsletter for up-to-date news about advances in healthcare, tailored to your interests.​
For more information on services or for a physician referral, call

Dr. John Lammert

Dr. John Lammert
WellStar Medical Group
Specialties: Internal Medicine
Languages Spoken: English
Degree: Doctor of Medicine
School: Medical College of Georgia
Residency: Augusta University
Fellowship: Atlanta Medical Center
Certification: American Board Internal Medicine
ACO Provider: Yes
Hospital Affiliations:
WellStar Kennestone Hospital


Dr. John Lammert is a native Georgian. He completed his undergraduate degree in microbiology at the University of Georgia and subsequently received his medical degree at the Medical College of Georgia. Dr. Lammert finished his post-graduate training at Georgia Baptist Medical Center, where he was chief resident in internal medicine.
Dr. Lammert’s interest lies in preventive medicine and treating hypertension, high cholesterol, diabetes and other acute and chronic illnesses.

Medical Practice

WellStar Medical Group
Cherokee Street Internal and Preventive Medicine

191 Cherokee Street
Marietta, GA 30060
Phone: (678) 354-3426
Fax: (678) 354-3469

Insurance Accepted:
Please check with your insurance provider to see if this doctor is covered by your current policy.