Contact Information

All calls are answered by our staff at our main office Monday through Friday (except holidays) from 9:00 a.m. to 12:00 p.m. and from 1:00 p.m. to 5:00 p.m. Our answering service is available outside of these hours.

Telephone: 770-427-7389
Fax: 770-427-1492

In order to address all calls in an efficient manner, your call to our office may be routed through our auto-attendant. All messages left before 4:00 p.m. will be returned by the end of the business day.

After Hours

For urgent medical issues after hours, please call our main number 770-427-7389 and you will be transferred to our answering service who will contact the physician on call.

Billing Contact

For billing questions please contact 770-427-3217.

Referral Contact

For referrals, please contact 678-388-1571.

Medical Questions & Prescription Refills

During office hours, contact your team via the number below. Please feel free to call on us whenever the need arises.

If you are directed to voicemail, please leave a message and your call will be returned by the close of the business day.

Non-urgent messages left after 4:00 p.m. may not be returned until the next business day.

Dialysis patients: 678-388-1585
Dr. Chervu's patients: 678-388-1584
Dr. Ogundipe's patients: 678-324-5584
Dr. Nath's patients: 678-324-5584
Dr. James's patients: 678-324-5597
Dr. Johnson's patients: 678-324-5591
Dr. Kamath's patients: 678-324-5584
Dr. Sheelvanth's patients: 678-388-1584
Dr. Martinez's patients: 678-324-5591
Dr. Tefera's patients: 678-324-5591

Holiday Schedule

GKA observes the following holidays:

  • New Years Day
  • King Day
  • Memorial Day
  • July 4th
  • Labor Day
  • Thanksgivng
  • Christmas

In addition, we have limited hours and phone coverage on Black Friday and Christmas Eve.