Our Providers

Dr. Stephanie Mandelman

Dr. Stephanie Mandelman

Dr. Stephanie Mandelman is Board Certified in Obstetrics and Gynecology. She graduated Phi Beta Kappa and Magna cum laude from Clark University in 1995 with a B.S. in Math. After attending the Chicago Medical School, she did her OB/GYN internship at UCLA and completed her residency training at the University of New Jersey (UMDNJ). In 1999 she began practicing in Long Beach, California and in 2006 started her own practice in Westlake Village, California.


Dr. Mandelman was Vice Chairman of OB/GYN at Los Robles Hospital in 2008. She is currently active on staff at Los Robles Hospital in Thousand Oaks and West Hills Hospital. She is affiliated with Thousand Oaks Surgical Hospital and the Los Robles Surgicenter.


Dr. Mandelman's interests include sports, cooking and spending time with her husband and two sons.

Samantha Stoll, WHNP-BC

Samantha Stoll, WHNP-BC

Samantha has always been passionate about the women’s health field and strives to provide dedicated care as she works as a Nurse Practitioner. Samantha grew up in Oak Park, California and received her Bachelor of Arts degree from UCLA. She will always be a lifelong Bruin. She continued her academic career in NYC, attending Columbia University. It was there that she pursued her nursing career, receiving a Bachelor of Science in Nursing degree in her first year. It was in her second year at Columbia, where Samantha’s passion for the women’s health field grew even stronger. She graduated with honors, receiving a Master of Science degree, and moved back to California to be closer to family and friends. She started work as a Women’s Health Nurse Practitioner in 2012 and has been enjoying her chosen career path ever since.


Samantha’s goal is to educate, empower, and provide quality and comprehensive gynecologic, obstetric, and primary care to women of all ages. She currently resides in Sherman Oaks with her lovable golden-doodle, Rocky. Samantha loves to cook, bake, travel, try new restaurants, and spend time with her family and friends. Her desire and motivation to help others is of utmost importance, and it shows in the way she cares and interacts with her patients.

Schedule an Appointment

Westlake Village Office

1250 La Venta Drive, Suite 101B

Westlake Village, CA 91361






Monday through Thursday | 8am–5pm

Friday | 8am–12pm