Ob-Gyn Specialists Our Providers

Doctors

Dr. Sari Kasper

Dr. Sari Kasper

Practicing with OB-GYN Specialists since 2006, Dr. Kasper enjoys the opportunity to work with women of all ages. She is board certified and her professional interests include adolescent gynecology, colposcopy and minimally invasive surgery including hysteroscopy, laparoscopy, and da Vinci surgery.

Dr. Janette Walker

Dr. Janette Walker

Dr. Janette Walker is a Board Certified obstetrician-gynecologist practicing in Walnut Creek since 1997. Her special interests are infertility, obstetrics, gynecologic surgery, and women's preventive healthcare. She enjoys the opportunity of working with women in varying age groups and at different stages of their lives.

Dr. Shannon Sullivan-Cramer

Dr. Shannon Sullivan-Cramer

Dr. Sullivan is passionate about women's health both inside and outside of work. Her particular interests include fibroids, endometriosis, family planning and preventative medicine. She is a minimally invasive gynecologic surgeon with laparoscopy and the da Vinci robot.

Nurse Practitioners

Heather West

Heather West

Heather West, NP has been a Women’s Health Nurse Practitioner at OB-GYN Specialists since 2001 and has over 30 years of nursing experience in women’s health. She says the best part of her job is helping women of all ages be as healthy as possible and she is proud to be part of such a collaborative practice that offers.

Karen Tinder

Karen Tinder

Karen has worked as a Family Nurse practitioner in a variety of clinical settings since 1998. She especially enjoys working with women as they are motivated to advance their well-being in pregnancy and beyond through nutrition and lifestyle changes that often eliminate physical complications, such as obesity and diabetes.