About
Dr. Robert S. Wagenaar is a board-certified family physician with over 24 years of experience. He grew up in Big Timber, Montana, and earned his undergraduate degree from Montana State University. Dr. Wagenaar later graduated from the University of Washington School of Medicine. He completed his residency in family medicine at the Puget Sound Family Medicine Residency program.
S. Navy. He cared for sailors and their families at Keflavik Naval Air Station in Iceland. After his military service, he returned to Montana and practiced in both rural and city settings. He and his wife have four children and enjoy fishing and growing their vineyard.
Education & Training
Undergraduate
Montana State University, B.S. Microbiology
Medical School
University of Washington, Seattle
Residency
Family Medicine, Puget Sound Family Medicine Residency at Naval Hospital Bremerton
Additional Training
Military service as Navy physician at Keflavik Naval Air Station, Iceland; practiced in rural Montana and Billings settings
Certifications
Conditions Treated
Who is Dr. Wagenaar right for?
Dr. Robert Wagenaar is an excellent choice for individuals and families seeking a long-term relationship with their physician. He supports patients of all ages, from children to adults. His practice is well-suited for people managing chronic conditions like diabetes, hypertension, and asthma. Patients who value unhurried appointments and direct access to their doctor will find his approach a great fit.
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Frequently Asked Questions
Yes, Dr. Robert Wagenaar holds board certification in Family Medicine. He brings more than two decades of clinical experience to his practice.
Dr. Wagenaar earned his medical degree from the University of Washington School of Medicine. He then completed a family medicine residency at Puget Sound Family Medicine Residency. S. Navy before returning to practice in Montana.
Dr. Wagenaar manages a wide range of conditions. His expertise includes chronic diseases like hypertension, diabetes, asthma, and thyroid disorders. He also treats common concerns such as anxiety, depression, musculoskeletal injuries, and dermatological issues.
Yes, as a family physician, Dr. Wagenaar provides care for patients of all ages. This includes pediatric care and well-child exams for his youngest members.
Dr. Wagenaar works together with his patients to provide high-quality, up-to-date medical care. He believes in shared decision-making for optimal health. His model allows him to focus entirely on patients without the influence of insurance companies.
Yes, Dr. Wagenaar handles many minor procedures in the office as part of the membership. These services include skin biopsies, laceration repair, wart removal, joint injections, and burn care.
Doctor profile last updated April 2, 2026