Michael T. Callahan, PA-C

Michael Callahan practices at Corewell Health Lakeland Hospitals - Saint Joseph Hospital in Saint Joseph, Michigan, part of Corewell Health.

Michael Callahan's NPI, 1891844148, was assigned on January 9, 2007. Michael Callahan holds Michigan license 5601003934.

Michael Callahan's primary practice is Corewell Health Lakeland Hospitals - Saint Joseph Hospital, at 1234 Napier Avenue, Saint Joseph, MI 49085 in Berrien County. The practice phone is (269) 983-8300.

Michael Callahan's primary practice is Corewell Health Lakeland Hospitals - Saint Joseph Hospital in Saint Joseph, Michigan, part of Corewell Health. The medical group on file is EPMG-Emergency Physicians Medical Group. Dmand AI also links Michael Callahan to 2 more medical groups, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Michael Callahan practices. Vendor and product names are available with a free account.

Physician assistant is Michael Callahan's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Michael Callahan is licensed in Michigan.

CMS counts 135 Medicare patients who saw Michael Callahan in 2024. The largest group is 75 to 84, with 43 patients. 75% of them have high blood pressure, and 70% have high cholesterol. 33% are also on Medicaid. Their average risk score is 1.80, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Michael Callahan's median patient age at 71, with 52% women.

In 2024, Michael Callahan wrote 289 Medicare Part D claims for 177 patients. 93% of them were for generic drugs.

Michael Callahan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

CMS Open Payments shows 1 general payment to Michael Callahan from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Vertex Pharmaceuticals Incorporated paid the most, $16.