Find a Escondido Doctor at Practice North County Women's Specialists on ZocDoc Find Doctors on ZocDoc


  Duane Buringrud, M.D.
  Paul Hinshaw, D.O.
  Dennis Carden, M.D.   Josue Leon, M.D.
  Brano Cizmar, M.D.
  Catherine Worden, M.D.
  Shannon Hart, D.O.
  Leslee Siegel C.N.M., M.S.N.   Karen Gross R.N.P.
  Rachel Krochmal F.N.P.   MaryAnn Oster, RDMS



Dr. Buringrud has been a Board Certified physician for 31 years, beginning his career in North County with Escondido OB-GYN Medical Group, Inc. for 28 years and expanding services into North County Women's Specialists as the senior partner.

He obtained his medical degree from Texas Tech University and completed his residency at the Naval Regional Medical Center in Oakland, California in 1978.

He has been recognized as Top Doctor by San Diego Magazine (2004); "Physician of the Year" at Palomar Medical Center in Surgery (2004) and the Birth Center (2007) along with many other awards received for dedication to patients and staff.

He was elected Chief of Staff by the Medical Staff at Palomar Medical Center in 2002, and has twice served as Department Chairman for Obstetrics and Gynecology. He has also been Chairman of the Quality Management Committee and the Pharmacy and Therapeutics Committee

Dr. Buringrud is currently the Chief Medical Quality Officer for the Palomar Pomerado Health District and is involved with building the new hospital due to open in 2012. Professional affiliations include American College of Obstetrics and Gynecology, San Diego County Medical Society, and American College of Physician Executives.

He is commonly referred to as Dr. B among his patients, staff, and medical personnel and respected by the medical community as a physician with integrity and composure.

Dr. Buringrud was born in Fargo, North Dakota and brings the values of a mid-west upbringing to those he serves.  He is married, and has four children and four grandchildren.  In his spare time he is an avid amateur photographer and genealogy devotee.

Escondido OB-GYN Medical Group
(760) 745-1363




Leslee Siegel is a Certified Nurse Midwife and Women's Healthcare Practitioner. She has her Masters of Nursing with an emphasis in Midwifery and Women's Health from the University of Southern California. She has been credentialed by the American College of Nurse Midwifery. Her speciality is the care of Women thru the life cycle, caring for women from adolescence through menopause.

In her spare time she enjoys spending time with her granddaughters.

Phone: 760-745-1363




Karen is a Nurse Practitioner certified in Women's Health. She obtained her BSN from Texas Women's University. After moving to California in 1987, she worked at Loma Linda University Medical Center for 13 years before returning to school to be a Nurse Practitioner. She obtained her MSN and Nurse Practitioner training through University of Phoenix in 1999.

Karen specialized in women's health because she enjoys seeing women of all ages throughout the life cycle. She especially enjoys teen pregnancies, perimenopausal and postmenopausal women.

Her hobbies include hiking, gardening, music, Jazzercise and spending time with her husband, children and granddaughters.

Phone: 760-658-6101


Dennis Carden, M.D.


Bio coming soon!




Dr. Cizmar has specialized in Obstetrics & Gynecology since 1995. He is loved by his patients, taking the time to address all of their concerns and treat them with the caring respect each one deserves. He is Board Certified with the American Board of Obstetrics & Gynecology. He obtained his medical degree from Comenius University in Bratislava, Slovakia and completed his internship and residency in Obstetrics and Gynecology at Michigan State University, Grand Rapids, Michigan.

He is a fellow with the American College of OB/GYN as well as American College of Surgeons. He is also professionally affiliated with the American Association of Gynecologic Laparoscopists.

He has been recognized as "Physician of the Year" at Palomar Medical Center by his colleagues in the Birth Center (2009) and was awarded "Special Excellence in Endoscopic procedures" by AAGL (2003). Within Gynecology and Obstetrics Dr. Cizmar specializes in high risk obstetrics, DaVinci robotic surgery, pelvic reconstructive surgery, urogynecology and minimally invasive gynecologic procedures, and cosmetic vaginal surgeries including: vaginal rejuvenation, perineoplasty, labioplasty. He also addresses concerns with infertility and helps manage problems related to menopause with therapy such as bio-identical hormone replacement.

In addition to specializing in Obstetrics and Gynecology his special interests include: facial cosmetic procedures (skin care, Botox administration, Latisse consults, skin tag removal), and individualized medically guided weight loss programs:

Dr. Cizmar was born and raised in Slovakia, but moved to Michigan where he completed his postgraduate training. He relocated to North County from Brawley, California where he had been in private practice since he completed his residency. He lives in San Marcos and has one son. Apart from his medical practice he enjoys fishing, skiing, scuba diving, swimming, foreign languages and traveling.

Phone: 760-233-1896




Rachel Krochmal is a Nurse Practitioner/ Physican Assistant who graduated from UC Davis NP/PA Program and is nationally certified. She is a member of ASCCP and CAPA and has been a clinical preceptor for UC Davis NP/PA program for the last 8 years. Rachel is a Colposcopists and is on the subcommittee for Patient Education for the American Society for Colposcopy and Cervical Pathology.

Her interests within the field cover all aspects of women's health care, including prenatal care, with special interest in abnormal pap smears, HPV, dysplasia, and vulvlar disorders.

Rachel has been in practice in the North County area for 16 years and is well known in the medical community.

Rachel was born in Escondido and currently resides in Escondido.   When not working she likes to travel, ski, scuba dive and snorkel with her husband and 3 children.

Phone: 760-233-1896


Shannon Hart, D.O.


Dr. Shannon Hart obtained her Osteopathic medical degree from Des Moines University - College of Osteopathic Medicine and Surgery in 2003 and completed her residency training in Obstetrics and Gynecology at Naval Medical Center San Diego in 2007. She is a Fellow of the American College of Obstetrics and Gynecology (ACOG) and a member of American Society for Reproductive Medicine (ASRM), American Society for Colposcopy and Cervical Pathology (ASCCP), American Medical Informatics Association (AMIA), and American Osteopathic Association (AOA). Currently, she is also a pursing a Master’s in Medical Informatics at Northwestern University at Chicago.

Dr. Hart had proudly served for 10 years in the United States Navy serving around the globe to include a tour in Japan. While forward deployed to Afghanistan in 2010 in support of Operation Enduring Freedom, she not only delivered care to female service personnel but also provided first line trauma and surgical services to our wounded soldiers in which she affectionately became known as the “Combat Gynecologist.”

As your physician, Dr. Hart’s philosophy is to work collaboratively with you providing professional opinion and guidance. This allows for you to make an educated, well informed decision for your healthcare. She specializes in fertility evaluation and treatment, moderate-high risk obstetrics, interstitial cystitis, cervical dysplasia (abnormal pap smears), urogynecology and osteopathic manipulative therapy (OMT).

Dr. Hart is happily married to a Family Medicine Navy Physician and enjoys spending family time with her daughter and Chihuahua. In her spare time, she also enjoys tap dancing.

Phone: 760-745-1363


Paul Hinshaw, D.O.


Dr. Hinshaw earned his B.S. degree in Biology from the University of Michigan, and his Doctorate from the Arizona College of Osteopathic Medicine. He completed his internship and residency in OB/GYN at Henry Ford Wyandotte Hospital, where he served as Chief Resident.

His professional interests include obstetrics, minimally invasive laparoscopic and robotic surgery, hysteroscopy, and endometrial ablation.

In his spare time, he enjoys spending time outdoors with his wife and son, traveling, skiing, biking and running.

Phone: 760-233-1896




Dr. Josue Leon is a Board Certified Physician in Obstetrics and Gynecology. As your physician, Dr. Leon takes the time to answer your questions and treats you how he would like to be treated with respect, compassion and a caring attitude.

Dr. Leon completed his medical degree from the University of Southern California Medical School. His residency in Obstetrics and Gynecology was completed at White Memorial Medical Center in Los Angeles, California.

He is a native Spanish speaker, as he was born in Guatemala, Central America. Dr. Leon is married and some of his interests include grilling, wine tasting, biking, computers and traveling.

Phone: 760-658-6101


MaryAnn Oster, R.D.M.S.


Maryann is a Registered Diagnostic Medical Sonographer. After graduating from her ultrasound program in 1996, Maryann moved from Northport, New York to Chicago, Illinois where she practiced general and OB/GYN ultrasound at Holy Cross hospital. After many years in Chicago, Maryann moved to San Diego where she was the Lead Ultrasound Tech at Sharp Memorial hospital. After having her second child, Maryann went on to spend 8 years working at Palomar Health in the general ultrasound department, as well as the perinatology department Maryann comes to NCWS with 17 years of experience and a true passion for obstetrical ultrasound.


Catherine Worden, M.D.


Dr. Catherine Worden is a Board Certified Physician in Obstetrics and Gynecologist. She completed her Medical Degree at the University of Southern California Keck School of Medicine. Her residency was in Obstetrics and Gynecology at White Memorial Medical Center in Los Angeles, California.

Dr. Worden believes it is a partnership between herself and the patient in taking care of the patient, and she cares for her patient’s with compassion and respect. She is interested in high-risk obstetrics, and minimally invasive laparoscopic surgery.

When not practicing medicine, she is raising her two girls with the help of her husband. They enjoy travelling, camping, skiing, swimming, soccer, baseball, and playing with their pets.

Home | Meet our Providers | Services | Patients | Contact Us | Staff Login  
©2009 North County Women's Specialists | As seen in Doctor Pages
Website developed by Medical Web Experts a New Wave Enterprises company