Our Providers

Christine Hansen, MD
Christine Hansen, MD

Born in Salt Lake City but a Colorado resident since the age of three, Dr. Hansen completed all of her undergraduate and post-graduate education in the Centennial State. She received her B.A. in molecular biology from the University of Colorado at Boulder in 1989, then went on to the CU Medical School. She completed her residency in obstetrics and gynecology at the University of Colorado Health Sciences Center in Denver in 1997. Dr. Hansen is board certified in obstetrics and gynecology.

A practitioner at Boulder Women’s Clinic since 2000, Dr. Hansen’s special interests are in menopausal transitions including hormone replacement therapy (HRT) and non-hormonal treatment options, gynecologic surgery, advanced and routine care.

Dr. Hansen is a Fellow of the American College of Obstetrics and Gynecology and a member of both the Colorado Medical Society and Boulder County Medical Society.

In her free time, she enjoys outdoor activities, including mountain climbing, backpacking, trail running and skiing.

Kathryn Johnson, PA-C
Christine Hansen, MD

Kathryn Johnson, PA-C has been practicing primary care medicine and women’s health care for more than 25 years, joining Boulder Women’s Clinic in 2013.  She attended the CHA/Physician Assistant Program at the University of Colorado Health Sciences Center in Denver where she received both her B.S. and M.S. in Medical Science as well as her Physician Assistant certification.  Kathryn has been certified with the NCCPA, the Colorado Medical Board and DEA since 1993 and was recognized as a Distinguished Fellow of the American Academy of Physician Assistants in 2009.

She interested in working with women of all ages and in all stages of life from providing contraceptive counseling to working with women to achieve healthy pregnancies to maintaining health into and through menopause.

Kathryn and her husband, Steve, enjoy spending time with their adult daughter, Molly, and with their extended family all over the country.  In her free time, Kathryn enjoys hiking, playing games, reading and, most of all, travel!

Kathryn is on leave as of August 2021.

Sarah Curzon, PA-C
Christine Hansen, MD

Sarah was born and bred in Alexandria, Virginia. She received her undergraduate degrees in Biological Sciences and International Studies at Virginia Tech. She then moved to Charleston, South Carolina where she completed her Master’s of Physician Assistant Studies at the Medical University of South Carolina. After PA school she decided to hop across the country to experience the Rocky Mountains and hasn’t gotten tired of them yet! Prior to joining the BWC team Sarah was working in family medicine.

Women’s health has always been a passion of Sarah’s. She understands the personal nature of the work and wants to bring comfort and ease to the experience for all of her patients.

Though not a native Coloradan, Sarah enjoys all things outdoors and understands the natural draw to the Centennial State. She spends her free time camping, hiking, drinking wine, and playing with her new puppy, Wiley!

Jennifer Stanzel, PA-C
Christine Hansen, MD

Jennifer Stanzel, PA-C has been practicing medicine for 24 years, starting her career in Family Practice and Internal Medicine before specializing in Women’s Health Care at The Boulder Women’s Clinic in 2006. Jen Stanzel graduated from the University of Osteopathic Medicine in Des Moines, Iowa with a B.S. degree in Medicine and Physician Assistant Certification in 1994. She completed undergraduate studies in her home state of Nebraska at the University of Nebraska Lincoln. As a Physician Assistant, Jen maintains certification with the NCCPA, licensure with the Colorado Medical Board, and maintains prescribing privileges through the DEA.

Special interests include adolescent gynecology, contraception counseling and management, management of abnormal PAP smears and preventative medicine. She has been providing LARC (Long Acting Contraceptive Contraception) care for over 10 years including IUD and Nexplanon insertions.

Jen and her husband have 3 children ages 9, 11 and 14. Some of their favorite family activities include camping, skiing, traveling and playing board games.