About Us

Dr. Daniel Bahnmiller



Dr. Daniel Bahnmiller, DO, graduated from Western University of Health Sciences in Pomona, California and completed his internship and residency at Good Samaritan Hospital Medical Center/NYCOM in West Islip, New York as a chief resident of the OB/GYN department. His post training also includes Galloway Residency Fellowship in Gynecologic Oncology at Memorial Sloan-Kettering Cancer Center in New York City. Dr. Bahnmiller became board certified in 2005, and recertified in 2011 and 2017.

Dr. Bahnmiller’s continuing education includes memberships and participation in various organizations including the Washington State Medical Association, American Osteopathic Association, American Institute of Ultrasound in Medicine, American College of Osteopathic Ob/GYN, Audio-Digest Foundation and the Tri City Regional Chamber of Commerce.

Dr. Bahnmiller has continued to keep current with the latest techniques in minimally invasive surgery such  as robotic assisted surgery as  well as non-surgical options, thus providing his patients with the best and least invasive options available to them for their particular conditions.

Research and publications include a prospective study on the predictability of fetal weight outcome, and a 2 year monthly publication in the Lake County Leader newspaper titled “Dr. Dan” on public questions relating to women’s healthcare and pregnancy.
After completing his certification, Dr. Bahnmiller and his family moved to Montana to practice as a solo private OB/GYN hospitalist for over 3 years. He is a past Chairman of the Department of Obstetrics and Gynecology at St. Luke’s Hospital in Ronan. In 2007 Dr. Bahnmiller started a solo private OB/GYN practice, serving the Tri Cities and surrounding areas. He is a past Chairman of the Department of Obstetrics and Gynecology at Kadlec Medical Center.  He is affiliated with both Kadlec,Trios and Lourdes hospitals for your preference.

Dr. Bahnmiller specializes in providing quality, health care to women of all ages including general OB/GYN services, both high-risk and normal obstetrics, infertility treatments and minimally invasive surgery options providing low-risk and fast recovery treatment options.
Dr. Bahnmiller’s interests outside of his medical practice include a love of travel to exotic locals, landscaping, skiing and running a good game of basketball. Much of his time is spent with his family.

Columbia Shores OB/GYN Staff

We are a small solo OB/GYN practice that tailors to the individual needs of our patients. We pride ourselves on the overall comprehensive care of each of our patients. Our staff continually attends conferences and workshops to improve our services and overall system. We meet weekly to assess the previous week’s efforts, including but not limited to office handlings and day by day routines. We review each patient’s chart to ensure proper health care management/supervision and billing administration.

138 Keene Road. Richland, WA 99352

Ph. 509-628-8866

Fax 509-628-8818