About Our Staff

Nikki McCann, PA-C

Nikki McCannNikki McCann is a nationally certified Physician Assistant and Registered Dietitian. Nikki is originally from Johnson City, Tennessee and moved to Atlanta in 2011. She received her Bachelor’s Degree in Family and Consumer Sciences with a concentration in Nutrition and Dietetics from East Tennessee State University. She then went on to pursue a Masters of Clinical Medical Science from Barry University in St. Petersburg, Florida. As a Physician Assistant and Registered Dietitian, she provides preventative care for adult and teenage patients, as well as counseling on nutrition.

When Nikki isn’t at work, she loves traveling and spending time with her husband and two sons and cheering on the Tennessee Volunteers. Her love of medicine originates from observing and working with her father, an orthopedic surgeon, in his office when she was younger. Before specializing in women’s health, Nikki worked in pediatric and adult orthopedics.


Michelle Johnson, FNP-C

michelle johnsonMichelle Johnson is a Certified Family Nurse Practitioner. A Georgia native, born and raised in Snellville, she received her Bachelor of Science in Nursing degree from Georgia Baptist College of Nursing of Mercer University. Following a rewarding career as a Pediatric Emergency Nurse at Children’s Healthcare of Atlanta, Michelle pursued and achieved a Master of Science in Nursing degree from her alma mater, with a concentration in Family Practice. As a Family Nurse Practitioner, she provides holistic care to all ages and has a profound passion for preventive care, pertaining to women and adolescents.

When Michelle is not working, she enjoys spending time with her husband, family, and yorkie named Grace. Entertaining and traveling are just a few of Michelle’s favorite activities. Married to a Firefighter, she and her husband both share a passion for caring and improving the health and wellbeing to the community and people they serve.


Janet Estok, LMT

michelle johnsonJanet Estok is a Nationally Certified Licensed Massage Therapist (LMT). She attended the Atlanta School of Massage in 2008 where she would graduate and receive certifications in several different styles of massage. This includes Swedish Massage, Deep Tissue, Sports Massage, Chair Massage, and Neuromuscular Therapy (NMT), as well as Kinesio Taping, Migraine/Headache Relief, TMJD, Neurokinetic Therapy (muscle firing correction), and Myoskeletal Alignment Therapy. Janet uses her unique style of Integrated Massage Therapy to customize each treatment to the specific needs of each client. When she’s not treating patients, Janet enjoys spending time with her family and dogs!

Appointments with Janet are available starting at 10am every other Wednesday. Contact us for details on appointment scheduling and rates.




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Contact Information

Gynecology Associates of Gwinnett
601 Professional Drive, Suite 330
Lawrenceville, Georgia 30046   
Phone: 678.380.1980   
Fax: 678.380.7348

Our Hours

Monday 8:30AM–4:30PM
Tuesday 8:30AM–4:30PM
Wednesday 8:30AM–4:30PM
Thursday 8:30AM–4:30PM
Friday 8:30AM–12PM
Saturday Closed
Sunday Closed

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