Bringing You High Quality Care You Can Count On

Established in 2010 to meet the primary care needs of Cumming and Forsyth County, Lanier Adult Medicine welcomes the opportunity to show you why “our practice makes perfect.” Make an appointment with us today!


Blue Cross Blue Shield

Attention all patients, we are in-network with Blue Cross Blue Shield. To schedule an appointment, please call our office or schedule online!

Proud to be Part of Privia Medical Group


Lanier Adult Medicine is a proud member of Privia Medical Group. The best doctors in our community have joined together to form Privia Medical Group (PMG), a multi-specialty, high-performance medical group that puts patients first. Our physicians are united by the mission of providing better, more coordinated care for their patients.

To learn more about Privia Medical Group and find other Privia doctors, please visit our website.

Dr. Karnstedt has saved my life with a diagnosis. I had seen many doctors who had no idea what was wrong. Her office is wonderful and her new staff have been extremely patient oriented. They where able to get all my blood work done there and my EKG which was helpful. Dr. Karnstedt called me at 9:00 pm when she read some labs she was concerned about and had arranged for me to see a specialist first thing the next morning. I could go on forever but rest assured she will always be my doctor.
Verified Patient

Cumming Office


106 Pilgrim Village Drive Suite 400
Cumming, GA 30040 Get Directions


678.455.0030 678.455.0033 Secure Message via Portal


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Patient Portal

Access your personal health information and test results, securely message your care team, and manage payments, all from one spot and at your convenience, 24/7.

  • See your provider's openings and schedule appointments.
  • Review prescription medications and request renewals.
  • View payment history and pay current invoices.
Patient Portal