Our Doctors

Your OB-GYN is at your side during some of your most intimate and significant life events.

That is why Rocky Mountain OB-GYN doctors and medical staff focus on personal attention and a long-term commitment to your health and wellbeing. Part of that approach to treatment means our doctors seek to establish long-term relationships with their patients, providing care throughout their lives.

Meet Our OB-GYNs


Dr. Yuko D’Ambrosia

Dr. D'Ambrosia is a board-certified OB-GYN, and she loves taking care of women through each stage of their lives. She has been a part of Rocky Mountain OB-GYN since 2001.

Dr. Corinne Dix

Dr. Dix has over 20 years of experience providing care as a board-certified OB-GYN. She serves as an on-call doctor for many of our patients.

Dr. Jean Dwinnell

Dr. Dwinnell is a board-certified OB-GYN with over 25 years experience. She loves walking alongside her patients through their teen years, their first jobs, engagement, marriage, childbearing and menopause.

Dr. Allison Herman

Dr. Herman is a second-generation OB-GYN, following in the steps of her father. She considers it a privilege to help women feel empowered about their health, diagnosis and treatment plans.

Dr. Daniel Jacobson

Dr. Jacobson is an experienced OB-GYN and has been practicing in Denver since 2001. Incorporating a mindful approach, Dr. Jacobson is an excellent listener, with true interest in his patients’ issues and health.

Dr. Hal Levy

Dr. Levy is a board-certified OB-GYN with over 20 years of experience. He cherishes the opportunity to care for his patients at their most vulnerable times in life, and he treats each of his patients as if they were members of his own family.

Dr. Alison Patterson

Dr. Patterson is a board-certified OB-GYN and a skilled surgeon. She believes that getting to know her patients, beyond just why they have come to the office, is crucial to providing the best comprehensive care.

Dr. Emily Schneider

Dr. Schneider is a board-certified OB-GYN and a native Denver resident. She values being there for women dealing with difficult diagnoses such as miscarriages, or learning that their pregnancy is affected by a severe anomaly. Dr. Schneider believes women should have a doctor they feel comfortable with taking care of them during these challenging times.

Marsha Merry, WHNP-BC

Marsha is a board-certified women’s health nurse practitioner (WHNP-BC) with more than 30 years of experience in gynecologic care, menopausal management, urinary incontinence and chronic pelvic pain.