• Now Accepting New Patients

    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!

    Make an Appointment
  • Now Accepting New Patients

    Establishing Long And Rewarding Personal Relationships With Our Patients

    We are an Internal Medicine practice who applies scientific knowledge and clinical expertise to the diagnosis, treatment, and compassionate care of adults across the spectrum from health to complex illness. We’d love to see you!

  • Now Accepting New Patients

    Easy and Flexible Access To Providers

    At Lanier Adult Medicine, we offer same-day sick appointments and quick provider access for follow ups and physical exams. Don’t wait to be seen!

News & Announcements

  • We Are Members of Privia Medical Group

    As of September 27, 2016, we are proud members of Privia Medical Group!

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


678.455.0030 678.455.0033 Secure Message via Portal


Patient Portal

Privia Medical Group offers patients personalized and secure 24/7 online access to their health records, as well as the ability to communicate with your medical care team through our patient portal.


Schedule Appointments

The easiest way to book an appointment with your provider.

Request Prescriptions

Review prescription medications and request prescription renewals.

Secure Messages

Send and receive secure messages with your medical care team.

View Your Records & Tests

Quick access to your secure electronic medical record and test results.

Pay Your Bill

Pay your invoices by credit card, securely and conveniently.