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Clinic Type

Internal Medicine

Address

7985 South Mackinaw Trail, Cadillac, MI 49601

Phone

231-876-6200

Email

—

Opening Hours

Not published — contact the clinic to confirm hours.

Website

https://providers.munsonhealthcare.org/specialty/Internal%20Medicine/near/Cadillac%2C%20MI?page=1

Services Offered

  • Internal Medicine

Team

  • James M. Diener — DO
  • Gregory P. Lambourne — MD
  • Christopher M. Donzell — NP

Insurance & Payment

—

Languages Spoken

—

Social Media

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Photos

Internal Medicine in Cadillac, MI - ProviderMatch — Internal Medicine clinic in Cadillac, MI — photo 1Internal Medicine in Cadillac, MI - ProviderMatch — Internal Medicine clinic in Cadillac, MI — photo 2Internal Medicine in Cadillac, MI - ProviderMatch — Internal Medicine clinic in Cadillac, MI — photo 3Internal Medicine in Cadillac, MI - ProviderMatch — Internal Medicine clinic in Cadillac, MI — photo 4Internal Medicine in Cadillac, MI - ProviderMatch — Internal Medicine clinic in Cadillac, MI — photo 5Internal Medicine in Cadillac, MI - ProviderMatch — Internal Medicine clinic in Cadillac, MI — photo 6Internal Medicine in Cadillac, MI - ProviderMatch — Internal Medicine clinic in Cadillac, MI — photo 7Internal Medicine in Cadillac, MI - ProviderMatch — Internal Medicine clinic in Cadillac, MI — photo 8

In the News

Information sourced from the clinic's website as of July 11, 2026.

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