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Summit OB/GYN’s Providers in Gillette, WY

Angela L. Biggs, MD, FACOG

Dr. Angela Biggs is board-certified in obstetrics and gynecology. She grew up in Worland, WY and then attended the University of Wyoming. There, she met her husband, Dr. Rodney Biggs. Together, they attended Creighton Medical School in Omaha, NE. Subsequently, she completed her OB/GYN residency in Grand Rapids, MI (a Michigan State-affiliated program).

She practiced for one year in Michigan and instructed residents as an associate professor of OB/GYN. The couple moved to Gillette in 2005, where they both began practicing full time. In 2014, Dr. Biggs resumed teaching, hosting a third-year clerkship site for the University of Washington.

Dr. Biggs and her husband have four children whom they are proud to be raising in Gillette. Her favorite part of practicing OB/GYN is the people!


Board-Certified: American Board of Obstetrics and Gynecology
Fellow: American College of Obstetricians and Gynecologists
Academic Appointment: Clinical Site Director OB/GYN Clerkship, University of Washington, Seattle, WA
Residency: Obstetrics and Gynecology, Grand Rapids Medical Education & Research Center, Grand Rapids, MI
MD: Creighton University School of Medicine, Omaha, NE
Member: North American Menopause Society, Society of Laparoscopic Surgeons, American Institute of Ultrasound in Medicine, American Medical Association, Wyoming Medical Society

Amber R. Cohn, MD, FACOG

Dr. Amber Cohn is board-certified in obstetrics and gynecology. She attended medical school at Oregon Health Sciences University in Portland, OR and completed her residency at the University of Nebraska Medical Center in Omaha, NE. She is a native of Gillette, WY. She has had busy OB/GYN practices in South Dakota, Nebraska and Wyoming. Dr. Cohn manages low- and high-risk pregnancies, is trained in advanced gynecologic laparoscopy, and sees patients for gynecologic issues ranging from adolescence to menopause — as well as for annual exams.

Dr. Cohn met her husband in Omaha during her residency training. They have three children, and they love traveling and doing outdoor activities as a family.

In May 2021, Dr. Cohn will be part-time. She will do deliveries on call only and have a limited gynecology schedule.


Board-Certified: American Board of Obstetrics and Gynecology
Fellow: American College of Obstetricians and Gynecologists
Academic Appointment: University of Washington, Seattle, WA
Residency: Obstetrics and Gynecology, University of Nebraska Medical Center, Omaha, NE
MD: Oregon Health Sciences University, Portland, OR
Member: American Association of Gynecologic Laparoscopists, Wyoming Medical Society

Courtney Goodnough, DNP, NP-C

Courtney Goodnough is board-certified as a Family Nurse Practitioner. She received her Doctor of Nursing from the University of Mary in Bismark, ND. Courtney attended the University of South Dakota in Vermillion, SD where she received her Bachelors as well as Associates of Science in Nursing. Courtney has 8 years of experience in emergency, intensive care, family practice, and obstetrics and gynecology nursing.

Courtney has worked as a registered nurse at Summit OB/GYN for 4 years. She loves working with Dr. Biggs and Dr. Cohn. Courtney enjoys how her profession allows her to make a difference in people’s lives. Connecting with patients on an emotional level and helping them in emergency situations is extremely rewarding for her.


For more information about our physicians, or to schedule an appointment, call 307-682-6263. You can also schedule an appointment using the easy online form at the top of this page.