16 Allergy & Immunology (Internal Medicine) providers practice in Michigan, including 2 (13%) offering telehealth. The largest concentration is in Ann Arbor. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.
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From CMS Medicare enrollment records covering 12 of the 16 providers listed here (75%). Providers who do not bill Medicare are not included in these figures.
| Group (as registered with Medicare) | Allergists (Internal Medicine) | All clinicians in group | Main city |
| Henry Ford Health System | 2 | 2,550 | Dearborn |
| Allergy and Asthma Center of Rochester PC | 2 | 2 | Rochester |
| Hospital | City | Ownership | CMS star rating | Allergists (Internal Medicine) affiliated |
| Beaumont Hospital Royal Oak | Royal Oak | Nonprofit | 3 of 5 | 4 |
| Beaumont Hospital, Troy | Troy | Nonprofit | 4 of 5 | 2 |
Sources: CMS Doctors and Clinicians (August 2026) and Facility Affiliation files (August 2026); hospital ownership type and overall star rating from CMS Hospital General Information (July 2026). A clinician in several groups is counted once, in the largest group they bill through. Ownership type is what the hospital reports to CMS; it does not show private equity or other investor ownership. How we build this directory.
Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.
There are 16 Allergy & Immunology (Internal Medicine) providers with active NPI records practicing in Michigan, according to federal NPPES data refreshed monthly.
Yes. 2 of the 16 Allergy & Immunology (Internal Medicine) providers in Michigan (about 13%) report offering telehealth services in CMS data.
Ann Arbor (2), Rochester (2), Detroit (2) have the highest concentration of Allergy & Immunology (Internal Medicine) providers in Michigan.
Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.
Among 12 Allergists (Internal Medicine) in Michigan enrolled in Medicare, 75% bill through a solo or small practice with fewer than 10 clinicians, 0% through a mid-size group of 10 to 99, and 25% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
According to CMS facility affiliation records, the Michigan hospitals where the most Allergists (Internal Medicine) hold privileges are Beaumont Hospital Royal Oak in Royal Oak; Beaumont Hospital, Troy in Troy.
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