Patient Information
Clinical Research
Patient Information


Johns Creek Primary Care has an OPTIFAST Clinic in our office during regularly scheduled patient hours.  Our dietitian, Julia Callahan, MS, RD, LD sees patients from 12 Noon to 4:30 PM on Wednesdays.

Julia Callahan, MS, RD, LD
  • Licensed and Registered Dietitian for over 8 years
  • Bachelor’s Degree in Nutrition at Georgia State Universit
  • Master’s Degree in Nutrition at Mississippi State University
  • Completed Dietetic Internship at Mississippi State University
  • Member of the Academy of Nutrition and Dietetics
  • Experience in providing medical nutrition therapy for a variety of conditions including: adolescent and adult weight management, diabetes, cardiovascular disease and gastrointestinal disorders

With OPTIFAST, you too may see these results:

Average weight loss is 52 pounds over 18 weeks

15% average decrease in cholesterol

29% average decrease in blood glucose in diabetics

10% average decrease in blood pressure

Program may be modified to meet individual needs of patient

Ask your doctor or nurse practitioner more about our program if you are interested in losing weight.

Please check out the new OPTIFAST video at:

Please click on link to view the video.

Office Hours Herman Clinical Research Johns Creek Health Care Association