Meet Our Providers

Samantha Anderson, MD

Dr. Anderson is a part of the experienced team of providers at Arbor Obstetrics & Gynecology where she strives to provide a warm and friendly environment during all visits. Dr. Anderson has over 25 years of experience in the obstetrics and gynecology field and cares deeply about women’s health.

She graduated from the Medical College of Georgia School of Medicine and completed her residency at the University of Florida Health Science Center in Jacksonville, where she specialized in obstetrics and gynecology. She is board certified and is a fellow of the American Congress of Obstetricians and Gynecologists.

Dr. Anderson believes the health and happiness of her patients is of utmost importance and will help you make well-informed decisions while providing the latest in information and technology for treatments and procedures. If you are looking for a confident and competent obstetric and gynecological care provider with an intimate practice, book online or call the Arbor Obstetrics & Gynecology office for your appointment today.

Joan Han, MD

Dr. Han, an Atlanta native, earned her Bachelor of Science in Cellular Biology at the University of Georgia and received her medical degree on an academic scholarship at the Medical College of Georgia, where she was inducted into the Gold Humanism Honor Society. She completed her OB/GYN residency program at Morehouse School of Medicine, caring for women and delivering babies primarily at Grady Memorial Hospital, known for its high medical acuity patients.

With a passion for surgical excellence, Dr. Han has received several awards recognizing her exceptional surgical skills, including the AAGL Excellence in Minimally Invasive Gynecology Award in 2023, and the SLS Outstanding Minimally Invasive Surgery Resident Award and the Roland A. Pattillo Top Hands Award in 2024. She has pursued advanced training in robotic and laparoscopic surgery, focusing on treatment for heavy or painful periods.

Dr. Han prioritizes the safety and health of both mother and baby in her obstetric practice. She is dedicated to combating the poor maternal morbidity rates in Georgia and actively promoting health equity. She is conversationally fluent in Mandarin.

Sirisha Raju, MD

Dr. Raju is a board certified Ob/Gyn who has been practicing in Georgia since 2012. She attended Mercer University, where she received her medical degree, and completed her residency in Obstetrics and Gynecology at Emory University. Dr Raju is dedicated to providing women with exceptional health care, and while these days she focuses mainly on providing GYN care, she stays current with the latest in both obstetrical and gynecological literature and practices and strives to always meet her patients where they are at in their journey through life.

In her free time, Dr. Raju enjoys spending time with her husband, who is a neurologist at Emory University Hospital, and her two young children. She also enjoys traveling, especially when those travels take her to India where she can spend quality time with friends and family there.

Lisa Holt, CNM

Lisa Holt is a certified Nurse Midwife who began her career with 15 years of experience as a nurse in women's health specialties including high-risk obstetrics and gynecology. She later graduated from Emory University with a Master of Science in Nurse Midwifery.

Lisa and Dr. Anderson have known each other and worked together for over 25 years! Lisa is passionate about women's health and encourages women of all ages to participate and explore all options regarding their wellbeing.

Outside of work Lisa enjoys gardening, spending time with her husband and her mother, and taking care of her sweet grandchildren.

Tega Ojagbeghru, NP

Tega Ojagbeghru, APRN, FNP-C, is a Family Nurse Practitioner. She attended Georgia State University for both her Bachelor of Science in Nursing degree and a Master of Science in Nursing degree, with a concentration as a Family Nurse Practitioner. She began her career in women’s health seven years ago as a labor and delivery registered nurse at Northside Hospital, specializing in high-risk obstetrics.

Tega’s deep passion for women’s health allows her to provide the best possible patient care for all. Tega believes in using the most up-to-date evidence-based practices to assess and manage changing health patterns in women.