Premier Health Partners
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Associated Specialists of Internal Medicine is a multi-specialty practice including internists, a rheumatologist and an endocrinologist who have all been in practice, in outpatient and in-patient environments, for over 20 years.

At our location in Centerville―we offer the convenience of in-office testing and laboratory facilities. ASIM also has on-site imaging available.

Hours of Operation:

Monday through Friday, 8:00 a.m. to 4:30 p.m.

Learn more about:




Boyle Headshot

John R. Boyle, M.D.

Griffin Headshot

Roger H. Griffin, MD

Heckman Headshot

Louis P. Heckman, M.D.

Ragupathy Headshot

Chethana J. Raghupathy, M.D.

Taylor Headshot

Barry E. Taylor, MD

von Maluski Headshot

Frank C. von Maluski, MD

Associated Specialists of Internal Medicine

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