Cardiologist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Chiropractor providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Dentist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Dermatologist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Family Physician providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
OB-GYN providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Ophthalmologist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Orthopedic Surgeon providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Pediatrician providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Physical Therapist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Podiatrist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Psychiatrist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Bobby O. Tackitt II, MD, is a board-certified OB-GYN who provides dedicated and diligent care to his patients at OB-GYN Associates of Marietta’s office in Marietta and Woodstock, Georgia.
Dr. Tackitt earned a Bachelor of Science degree in Biology and his medical degree from the University of Missouri in Columbia. He relocated to Denver, Colorado, to complete an internship in internal medicine, a second internship in obstetrics and gynecology, and a residency in obstetrics and gynecology, all at St. Joseph’s Hospital.
Dr. Tackitt is currently a Fellow of the American College of Obstetricians and Gynecologists and enjoys membership in the Missouri State Medical Association, the St. Louis Gynecological Society, and the American Urogynecologic Society. Prior to joining the team at OB-GYN Associates of Marietta in 1999, he ran a private practice in southern Missouri.
In his practice, Dr. Tackitt specializes in pelvic floor reconstruction, the treatment of urinary incontinence, and advanced minimally invasive laparoscopy. He maintains a subspecialty interest in urogynecology and teaches pelvic floor reconstruction surgical procedures.
Outside of work, Dr. Tackitt raises Japanese koi, grows orchids, and participates in Schutzhund, a competitive dog-training sport. He also enjoys spending time with his wife and their four children.
Terry V. Kelley, MD, is a board-certified OB-GYN who provides exceptional care to his patients at OB-GYN Associates of Marietta in Marietta and Woodstock, Georgia.
Dr. Kelley graduated magna cum laude with a Bachelor of Science degree from Mercer University in Macon, Georgia. He earned his medical degree from the Medical College of Georgia in Augusta, Georgia, and returned to Macon for his postgraduate training, completing his internship at the Medical Center of Central Georgia and his residency at Mercer University/Medical Center of Central Georgia.
Dr. Kelley is active in his field and is a proud member of the American Association of Gynecologic Laparoscopists, the Southern Medical Association, the American Medical Association, the American Society for Reproductive Medicine, the North American Menopause Society, and the American Institute of Ultrasound in Medicine. He’s also a Fellow of the American College of Obstetricians and Gynecologists.
Prior to joining the team at OB-GYN Associates of Marietta in 1985, Dr. Kelley held a number of respected leadership positions at the Wellstar Kennestone Hospital in Marietta, including the Chairman of the hospital’s OB-GYN department. In addition to his current practice, he is also on the executive committee of the OBNET Women’s Healthcare Network and serves on the Task Force Committee for Women and Children Center.
Outside of work, he enjoys spending time with his wife and their five children.
Mary L. Chappell, MD, FACOG, is a board-certified OB-GYN who provides the community of Marietta and Woodstock, Georgia with excellent medical care at OB-GYN Associates of Marietta. She was ranked as America’s Top OB-GYN for 2004-2005 by the Consumers’ Research Council of America.
Dr. Chappell graduated with a Bachelor of Science degree in Mathematics from the University of Florida in Gainesville, where she was inducted into numerous honor societies, including Phi Beta Kappa, Phi Eta Sigma, Alpha Lambda Delta, Alpha Epsilon Delta, and the Golden Key National Honor Society. She stayed at the University of Florida for her medical degree, earning the Janet M. Glasgow Memorial Achievement for graduating in the top 10% of her class, as well as membership in the Alpha Omega Alpha Honor Medical Society and the Phi Kappa Phi Honor Society. She completed her residency at the University of North Carolina in Chapel Hill, where she was named Outstanding Intern and Resident of the Year.
Dr. Chappell is currently a member of the Georgia Obstetrics and Gynecology Society, the Atlanta Obstetrics and Gynecology Society (where she is a former president), the Cobb County Medical Society, and is a Fellow of the American College of Obstetricians and Gynecologists. Dr. Chappell served as the Chairman of the OB-GYN department at Wellstar Kennestone Hospital in Marietta.
Dr. Chappell believes in providing patient care that’s compassionate and inclusive and makes sure to fully discuss medical conditions and treatment options with all of her patients in a direct and sympathetic manner. Outside of work, she likes to run, travel, and spend time with her family and friends, including her husband, Scott, and their two children, Kendall and Connor.
Kimberly A. Huffman, MD, is a board-certified OB-GYN who provides high-quality treatments and compassionate care to her patients at OB-GYN Associates of Marietta, located in Marietta and Woodstock, Georgia.
Dr. Huffman graduated cum laude with a Bachelor of Science degree in Psychology from Florida State University in Tallahassee, Florida. She earned her medical degree from the University of Florida College of Medicine in Gainesville, and completed her internship and residency in obstetrics and gynecology at the University of South Florida College of Medicine in Tampa. She is currently a Fellow of the American College of Obstetricians and Gynecologists.
Dr. Huffman has been practicing with OB-GYN Associates of Marietta since 1998, where she splits time between the Marietta and Woodstock offices. She’s particularly adept in office-based procedures and in- and outpatient surgeries, and she’s widely sought after for her skills and compassion in offering counseling for contraceptive and menopausal issues.
When she isn’t working with patients, Dr. Huffman likes to spend time with her family and friends and engage in outdoor activities like running. She has three children with her husband, Quintin: Makena, Bryson, and Camdyn.
Natalie R. Needham, MD, is a highly skilled OB/GYN who enjoys providing compassionate care to women in every stage of life. She’s currently on the team at OB-GYN Associates of Marietta and treats patients at their offices in Marietta and Woodstock, Georgia.
Dr. Needham is a proud Louisiana native who graduated from Louisiana State University in Baton Rouge. She earned her medical degree from West Virginia University in Morgantown, West Virginia, and completed her OB/GYN residency at Mercy Hospital in Chicago. During her residency, she served as the chief resident, was awarded the Academic Achievement Award, the Resident Achievement in Laparoscopy Award, and earned the title “Special Resident in Minimally Invasive Gynecology-Robotics and Laparoscopy.”
Dr. Needham joins the OB-GYN Associates of Marietta team after seven years in Alabama, where she worked in private practice in Montgomery and taught as an Associate Professor at the University of Alabama School of Medicine in Birmingham. She looks forward to continuing her practice in her new home and bringing high-quality medical care and an empathetic bedside manner to the women of Georgia.
When she’s not working, Dr. Needham loves to chase around her two-year-old son, cook with her three stepdaughters, and explore new places with her husband.
Kevin W. Windom, MD, FACOG, FPMRS is recognized by Continental Who’s Who as a Pinnacle Lifetime Achiever as the President of OB-GYN Associates. As an OBGYN/Urogynecologist located in Marietta, GA & Woodstock, GA, Dr. Windom has been at OB-GYN Associates of Marietta since 1998. He has over 26 years of experience as a physician and is a national public speaker, published author, local and national surgical preceptor, and a research and development consultant for a number of medical and surgical companies. Looking to the future, Dr. Windom maintains special interests in female pelvic floor reconstructive surgery, minimally invasive laparoscopic gynecologic surgery, robotic pelvic surgery, and urinary incontinence management and surgery, uterine fibroids, and endometriosis.
Dr. Windom graduated from the University of Georgia in Athens with a Bachelor of Science degree in Biochemistry as a member of the biological honor society, Beta Beta Beta, and the pre-med honor society, Alpha Epsilon Delta. Following this, Dr. Windom earned his medical degree from the Medical College of Georgia in Augusta, completed an internship at the University of Tennessee in Memphis, and completed a second internship at St. Joseph Hospital in Denver, Colorado. Dr. Windom remained at St. Joseph Hospital to complete a four-year residency program in Obstetrician-Gynecology. Dr. Windom is Double Board-certified in both Female Pelvic Medicine and Reconstructive Surgery and OB-GYN
Dr. Windom is a Fellow of the American College of Obstetricians and Gynecologists. To further his professional development, Dr. Windom holds membership in the American Urogynecological Society, the Society of Laparoendoscopic Surgeons, the State of Georgia OB-GYN Society and the Cobb County Medical Society. Devout to his faith, Dr. Windom is a member of the Peachtree Presbyterian Church and the Christians Medical/Dental Missionary.
In recognition of his professional accolades, Dr. Windom is a member of the Honor Societies Beta Beta Beta and Alpha Epsilon Delta. He has also been honored as an Atlanta Top Doctor (Castle-Connoly).
Outside of work, Dr. Windom enjoys spending time his wife and children, hunting, playing the guitar, and mountain biking.
Dr. Windom dedicates this recognition to his Head of Gynecology for Cleveland Clinic and his mentor, Guillermo William Davila, MD.
“Excellent! My visits with Dr. Windom were great. If he was behind schedule, the nurses prepared the patients and apologized for the delay. Even though my experience was difficult, Dr. Windom did not give up on me. I had a ton of questions, and he patiently listened and answered all of them. If he was tired of my questions, he never expressed it. At the end of each appointment, he respectfully gave me a hug and made sure that I was good to go. ”
Dr. Kevin Windom, MD
OB-GYN
100 Stone Forest Dr.
Suite 150
Woodstock, GA 30189
4.9(715)
4.9
(500)
Dr. Colleen Killian, MD
OB-GYN 10.4 mi
4.9(500)
100 Stone Forest Dr.
Suite 150
Woodstock, GA 30189
Colleen E. Killian, MD, has been a physician in the field of obstetrics and gynecology at OB-GYN Associates of Marietta since 2013.
Dr. Killian graduated with a Bachelor of Science degree in Biology from the University of Miami in Miami, Florida. She earned her medical degree from Florida State University College of Medicine in Tallahassee, Florida and completed her residency at Bayfront Medical Center in St. Petersburg, Florida. While in residency, she won many achievements, including: the Academic Achievement Award, the Patient Satisfaction Award, and was selected by her colleagues to serve as their Educational Chief Resident after achieving back to back high scores on the national exam.
She moved her family from St. Petersburg, Florida to join OB-GYN Associates because she wanted to be a part of a group that was already well respected in the community and provides skilled, competent care. Dr. Killian excels in caring for women as they transition from adolescence, having children, and through menopause.
Dr. Killian is married and has three young children. She enjoys reading, hiking, going to concerts and attending Atlanta United soccer games with her family.
“Dr Killian is the best listener. I never feel rushed with her. She makes me feel like I am her only patient even though I only see her once a year. Not only is see very knowledgeable but she has a wonderful relationship with her patients. ”
Dr. Colleen Killian, MD
OB-GYN
100 Stone Forest Dr.
Suite 150
Woodstock, GA 30189
4.9(500)
Dr. Renita White, MD
OB-GYN 11.2 mi
5780 Peachtree Dunwoody Road
Interchange Building, Suite 320
Atlanta, GA 30342
Renita White, MD, FACOG, is a board-certified obstetrician and gynecologist at Georgia Obstetrics and Gynecology in Atlanta and Alpharetta, Georgia. Dr. White cares for women in all stages of life and treats a variety of conditions, including fibroids, menopause, and fertility.
Originally from Georgia, Dr. White earned her undergraduate degree at Duke University and medical degree at The Ohio State University. She then returned to Atlanta for her residency in obstetrics and gynecology at Emory University.
Outside of work, Dr. White cohosts a podcast about pregnancy and motherhood. She also contributes to health articles to confirm patient education. In her spare time, Dr. White enjoys traveling and spending time with her husband, two sons, and dog, Nala.
Education & Training
Duke University-Undergraduate
The Ohio State University College of Medicine
Emory University-OBGYN Residency
Distinctions & Affiliations
Fellow, American College of Obstetrics and Gynecology
Julie Zimmermann, MD, FACOG, is a board-certified obstetrician and gynecologist with over 28 years of experience at Georgia Obstetrics and Gynecology in Atlanta and Alpharetta, Georgia. She is committed to spending as much time with patients as needed, conducting thorough examinations, and discussing women’s health concerns along with potential treatment options to enable patients to make educated decisions about their health care.
Dr. Zimmermann started her educational journey with an undergraduate degree at Davidson College in North Carolina. She then moved to Atlanta to earn her medical degree at Emory University.
Before returning to Atlanta to join the team at Georgia Obstetrics and Gynecology, Dr. Zimmermann completed her OB/GYN residency in the Bronx, New York, at Albert Einstein College of Medicine Montefiore Medical Center. Dr. Zimmermann is board-certified by the American Board of Obstetrics and Gynecology.
When she’s not at work, Dr. Zimmermann enjoys theater, music, and spending time with her family.
Nicole Blackburn MD, FACOG, is a board-certified obstetrician and gynecologist at Georgia Obstetrics and Gynecology in Atlanta and Alpharetta, Georgia. A long-time resident of the Orlando, Florida, area, Dr. Blackburn earned both her undergraduate and medical degrees at the University of Florida in Gainesville. She moved to Atlanta to complete her OB/GYN residency training at Emory University, where she was selected as the administrative chief resident during her final year of residency. Dr. Blackburn enjoyed the Atlanta area so much she decided to stay after her residency and joined the physicians at Georgia Obstetrics and Gynecology. Dr. Blackburn has three little boys and two dogs. She enjoys cooking, watching college football, and spending time with her family. Education &Training: • Medical Education, University of Florida College of Medicine • Residency, Obstetrics & Gynecology, Emory Distinctions & Affiliations: • Board Certified, Obstetrics & Gynecology • Fellow of the American Congress of Obstetrics and Gynecology • Castle Connolly Top Doctor • Atlanta Parent’s Mom-Approved Doctor
Dr. Kiana Nezafat, MD, is the newest addition to the North Atlanta Ob/Gyn family. With a heart full of compassion and a dedication to women's health, Dr. Nezafat is delighted to welcome new patients at both the Marietta and Atlanta office locations.
Dr. Nezafat has a special connection to the community she serves. Growing up in the Acworth, Georgia, she developed a profound understanding of the unique healthcare needs of the area's women.
Her academic journey led her to the University of Georgia, where she earned a Bachelor's degree in Biology. Fuelled by her passion for medicine and women's health, she went on to achieve her medical degree from Medical College of Georgia. Upon completing her education, she pursued residency training at The University of Florida in Jacksonville, Florida, where she honed her skills and expertise in obstetrics and gynecology.
Returning to her roots in Georgia, Dr. Nezafat is thrilled to contribute to the wellbeing of women in her community. Her enthusiasm for all aspects of Ob/Gyn care shines through, whether she's guiding high-risk pregnancies with empathy and expertise, performing minimally invasive surgeries, or providing general gynecological care.
One of Dr. Nezafat's core values is building lasting connections with her patients. She believes in the importance of cultivating strong relationships that are built on trust, understanding, and shared decision-making. Her commitment to evidence-based practices ensures that her patients receive the most comprehensive and up-to-date care available.
Beyond her medical pursuits, Dr. Nezafat finds joy in various hobbies. She relishes quality time with her family and embraces the opportunity to explore new destinations through travel. An advocate for a balanced and healthy lifestyle, she engages in regular exercise and enjoys experimenting with culinary creations in her kitchen. Her adventurous spirit extends to the world of cuisine as she savors the experience of trying new restaurants.
Thrilled to be back in her beloved north Atlanta, Dr. Nezafat looks forward to contributing her skills and compassion to the community she knows and loves. Her devotion to women's health, along with her warm and approachable demeanor, makes her a valuable asset to North Atlanta Ob/Gyn.
Michelle Picon, MD, MPH, FACOG is a board-certified obstetrician and gynecologist at Georgia Obstetrics and Gynecology in Atlanta and Alpharetta, Georgia. She finds every aspect of her career incredibly fulfilling, from delivering babies to performing surgery and treating a variety of gynecologic conditions. Her goal is to build lasting relationships with patients by offering high-quality, educational, and patient-centered care that honors diversity and empowers her patients to make the best decisions for their health and wellbeing. She is also proud to offer all services in Spanish.
Although she was raised in Rome, Georgia, Dr. Picon is originally from San Juan, Puerto Rico and a native Spanish speaker. She attended Duke University, then moved to Miami, Florida to earn her Medical Degree and Masters of Public Health at the University of Miami. During her time there, she was awarded a Fulbright Scholarship to complete a maternal-child health research project working with adolescent mothers in Cartagena, Colombia. She then completed her residency at Emory University, and practiced in the Atlanta area for a few years before joining Georgia Obstetrics and Gynecology.
Dr. Picon spends her free time with her husband, daughter, and their dog Coconut. She enjoys running, swimming, spending time outdoors, and traveling, especially family trips to Puerto Rico.
Kalie Vinson, MD, FACOG, is an obstetrician and gynecologist at Georgia Obstetrics and Gynecology in Atlanta and Alpharetta, Georgia. Dr. Vinson sees patients ages 12 and up for in-office women’s wellness exams, contraceptive planning, prenatal care, menopausal consultations, and the diagnosis and treatment of endometriosis.
Dr. Vinson was raised in Milton, Georgia. After high school, she moved to Nashville, Tennessee, to earn her undergraduate degree at Vanderbilt University, where she majored in neuroscience. She returned to Georgia to earn her medical degree at the Medical College of Georgia in Augusta and completed her OB/GYN residency training at Emory University in Atlanta. She started practicing gynecology in the same hospital where she was born, Northside Hospital in Georgia.
When she’s not at work, Dr. Vinson enjoys spending free time with her husband, Joseph, who is a psychiatrist in Atlanta, and her two kids. They love to take road trips and visit family in the North Georgia mountains.
Jeanette Leader, MD, FACOG, is a board-certified obstetrician and gynecologist at Georgia Obstetrics and Gynecology in Atlanta and Alpharetta, Georgia. Along with providing general gynecology and women’s health care, she uses her experience and passion to help women during pregnancy, labor, and birth — the most exciting time of their lives.
Dr. Leader earned both her undergraduate and medical degrees at Emory University in Atlanta, Georgia. She then traveled to Florida to fulfill her residency at Orlando Regional Hospital.
Recognized by the Atlanta Top Doctors Magazine, Dr. Leader was named a top physician in Obstetrics and Gynecology from 2018-2021 and was also named Castle Connolly’s Exceptional Women in Medicine in 2020 and 2021.
To stay up-to-date with the latest in gynecology and obstetrics care, Dr. Leader is board-certified by the American Board of Obstetrics and Gynecology.
Outside of work, Dr. Leader loves traveling the world (and has even been to all seven continents) with her daughter and husband and adores her rescue dog named Jet. She also enjoys reading all types of fiction, contemporary, mystery, young adult, fantasy, sci-fi and historical.
“If one advances confidently in the direction of [ones] dreams, and endeavors to live the life which [one] has imagined, [she] will meet with a success unexpected in common hours.
Kel Harper, MD, FACOG, is a board-certified obstetrician and gynecologist with over three decades of experience, practicing at Georgia Obstetrics and Gynecology in Atlanta and Alpharetta, Georgia. Many of Dr. Harper’s patients start seeing him during their teen years and continue throughout the many stages of women’s health needs.
A lifelong resident of Georgia, Dr. Harper earned his undergraduate degree at the University of Georgia in Athens before earning his medical degree at The Medical College of Georgia in Augusta. He then fulfilled his OB/GYN residency at the Greenville Hospital System (now called Prisma Health Greenville Memorial Hospital) in Greenville, South Carolina, before returning home to join the experienced physicians at Georgia Obstetrics and Gynecology.
Dedicated to keeping up with advancements in obstetrics and gynecology best practices, Dr. Harper is board-certified by the American Board of Obstetrics and Gynecology.
When he’s not at work, Dr. Harper enjoys sports, especially football, and spending time with his three children.
Stephen Ayres, MD, FACOG, is a board-certified obstetrician and gynecologist at Georgia Obstetrics and Gynecology in Atlanta and Alpharetta, Georgia. He is committed to providing comprehensive and compassionate patient-centered care for women from adolescence through senior citizens. Many of Dr. Ayres' patients have been scheduling appointments with him for over a decade. Dr. Ayres is known for his caring nature and for putting patients at ease.
Originally from Tennessee, Dr. Ayres earned his undergraduate degree from Duke University in Durham, North Carolina, and his medical degree from Emory University in Atlanta, Georgia. He stayed in Georgia to also complete both his residency and additional training at Emory University.
To stay up to date with the latest treatment options and technology and provide high-quality care, Dr. Ayres is certified by the American Board of Obstetrics and Gynecology.
When he’s not at work, Dr. Ayres enjoys golfing, watching football, and spending time with his wife and two children.
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