Allergists in Michigan
Data updated monthly · Last refresh October 2026
138 Allergy & Immunology providers practice in Michigan, including 38 (28%) 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.
138providers
38telehealth
Ann Arbortop city
Allergy & Immunology by city in Michigan
Choose a city to see providers there.
Where Allergists in Michigan practice
From CMS Medicare enrollment records covering 94 of the 138 providers listed here (68%). Providers who do not bill Medicare are not included in these figures.
59%solo or small practice (under 10 clinicians)
4%mid-size group (10 to 99)
37%large group or health system (100+)
Largest practice groups
| Group (as registered with Medicare) | Allergists | All clinicians in group | Main city |
| Regents of the University of Michigan | 20 | 3,344 | Ann Arbor |
| Spectrum Health Primary Care Partners | 7 | 2,283 | Grand Rapids |
| Henry Ford Health System | 5 | 2,550 | Detroit |
| Allergy and Asthma PC | 4 | 4 | West Bloomfield |
| Allergy and Immunology Associates of Ann Arbor, PC | 3 | 6 | Ann Arbor |
Hospitals where they hold privileges
| Hospital | City | Ownership | CMS star rating | Allergists affiliated |
| University of Michigan Health System | Ann Arbor | Nonprofit | 4 of 5 | 20 |
| Beaumont Hospital, Troy | Troy | Nonprofit | 4 of 5 | 11 |
| Spectrum Health | Grand Rapids | Nonprofit | 4 of 5 | 9 |
| Beaumont Hospital Royal Oak | Royal Oak | Nonprofit | 3 of 5 | 8 |
| Henry Ford Health Hospital | Detroit | Nonprofit | 3 of 5 | 6 |
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.
Allergy & Immunology providers in Michigan
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.
Dr. Aimee Speck, MDAnn Arbor, MI · No drug or device payments recorded (2025) ·
(734) 647-5940 Dr. Alan Baptist, MDAnn Arbor, MI · $40,319 in drug and device payments (2025) · Telehealth ·
(734) 647-5940 Dr. Charles Schuler, M.D.Ann Arbor, MI · No drug or device payments recorded (2025) ·
(734) 647-5940 Dr. Deborah Lee, MDAnn Arbor, MI · $33 in drug and device payments (2025) · Telehealth ·
(734) 647-5940 Dr. Emma Greimann, MDAnn Arbor, MI · No drug or device payments recorded (2025) ·
(734) 936-5634 Dr. Fadi Toro, MD, MMSCAnn Arbor, MI · $262 in drug and device payments (2025) ·
(734) 232-4986 Dr. George Freigeh, MDAnn Arbor, MI · $137 in drug and device payments (2025) · Telehealth ·
(734) 647-5940 Dr. Georgiana Sanders, MDAnn Arbor, MI · No drug or device payments recorded (2025) ·
(734) 647-5940 Dr. Ian Slack, M.D.Ann Arbor, MI · No drug or device payments recorded (2025) ·
(734) 647-5940 Dr. James Baldwin, MDAnn Arbor, MI · No drug or device payments recorded (2025) · Telehealth ·
(734) 647-5940 Dr. Kelly O'shea, MDAnn Arbor, MI · No drug or device payments recorded (2025) ·
(734) 647-5940 Dr. Lauren Franzblau, MDAnn Arbor, MI · $39 in drug and device payments (2025) · Telehealth ·
(734) 647-5940 Dr. Lawrence Hennessey, M.D.Ann Arbor, MI · No drug or device payments recorded (2025) ·
(734) 647-5940 Dr. Marc Mcmorris, MDAnn Arbor, MI · No drug or device payments recorded (2025) · Telehealth ·
(734) 647-5940 Dr. Mirie Hosler, MDAnn Arbor, MI · $114 in drug and device payments (2025) · Telehealth ·
(734) 647-5940 Dr. Mohammed Rafeeq, MDAnn Arbor, MI · No drug or device payments recorded (2025) ·
(734) 647-5940 Dr. Ruizhi Dong, MDAnn Arbor, MI · No drug or device payments recorded (2025) · Telehealth ·
(734) 647-5940 Dr. Sara Ellingwood, M.D.Ann Arbor, MI · No drug or device payments recorded (2025) · Telehealth ·
(734) 647-5940 Dr. Sherry Zhou, MDAnn Arbor, MI · No drug or device payments recorded (2025) ·
(734) 936-5582 Dr. Ulus Atasoy, MDAnn Arbor, MI · $218 in drug and device payments (2025) ·
(734) 769-7100 Dr. David Swender, D.O.Battle Creek, MI · $48 in drug and device payments (2025) ·
(269) 425-1711 Dr. Richard Horbal, M.D.Bay City, MI · No drug or device payments recorded (2025) ·
(989) 895-5007 Dr. Steven Kreshover, MDBingham Farms, MI · No drug or device payments recorded (2025) ·
(248) 647-1200 Dr. Mohammedi Savliwala, MDBloomfield Hills, MI · $4,521 in drug and device payments (2025) · Telehealth ·
(248) 335-3760 Dr. Rachel Kado, MDBloomfield Hills, MI · $77 in drug and device payments (2025) ·
(248) 972-5143 Dr. Dylan O'reilly, MDBrighton, MI · No drug or device payments recorded (2025) · Telehealth ·
(734) 647-5940 Dr. Mariel Benjamin, MDBrighton, MI · No drug or device payments recorded (2025) · Telehealth ·
(734) 647-5940 Dr. Mark Zacks, M.D.Brighton, MI · No drug or device payments recorded (2025) ·
(810) 227-6793 Dr. Rajan Ravikumar, M.D.Brighton, MI · $249 in drug and device payments (2025) · Telehealth ·
(734) 647-5940 Dr. Martin Dubravec, MDCadillac, MI · $1,006 in drug and device payments (2025) ·
(231) 779-4444 Dr. Franklin West, DOCarson City, MI · No drug or device payments recorded (2025) ·
(989) 584-3971 Dr. Pamela Georgeson, DOChesterfield, MI · $1,109 in drug and device payments (2025) ·
(586) 949-5900 Dr. Reba Johnson, M.D.Clarkston, MI · $466 in drug and device payments (2025) ·
(248) 384-8310 Dr. Deepa Dixit, M.D.Clinton Township, MI · $21 in drug and device payments (2025) ·
(586) 286-0550 Dr. Jeffrey Bruner, DOClinton Twp, MI · $2,277 in drug and device payments (2025) ·
(586) 286-9010 Dr. Roula Daher, MDDearborn, MI · $973 in drug and device payments (2025) ·
(313) 274-3311 Dr. Sonia Thomas, MDDearborn, MI · $259 in drug and device payments (2025) ·
(313) 565-3565 Dr. David ColemanDetroit, MI · No drug or device payments recorded (2025) · Telehealth ·
(800) 653-6568 Dr. Haejin Kim, MDDetroit, MI · No drug or device payments recorded (2025) · Telehealth ·
(313) 876-2662 Dr. James Womack, MDDetroit, MI · No drug or device payments recorded (2025) ·
(313) 909-9051 Dr. Mohamad Daklallah, MDDetroit, MI · $778 in drug and device payments (2025) ·
(313) 916-1888 Dr. Mohamed Taki, M.D.Detroit, MI · $148 in drug and device payments (2025) ·
(313) 745-1892 Dr. Rana Misiak, MDDetroit, MI · No drug or device payments recorded (2025) · Telehealth ·
(313) 876-2662 Dr. Mark Decco, MDEastpointe, MI · $1,109 in drug and device payments (2025) ·
(586) 447-4200 Dr. Wayne Pierantoni, MDEastpointe, MI · No drug or device payments recorded (2025) ·
(586) 447-4200 Dr. Annie Arrey Mensah, MDFarmington Hills, MI · $135 in drug and device payments (2025) ·
(248) 396-9563 Dr. Michael Hepner, MDFarmington Hills, MI · No drug or device payments recorded (2025) ·
(248) 798-7674 Dr. Ronda Barak-norris, MDFarmington Hills, MI · $716 in drug and device payments (2025) ·
(248) 419-3538 Dr. Cory Cookingham, MDFlint, MI · No drug or device payments recorded (2025) ·
(810) 733-3200 Conditions Allergy & Immunology providers in Michigan commonly treat
Patients often search by condition rather than specialty. These are conditions typically managed by Allergy & Immunology providers. Individual practices vary, so confirm with the provider before booking.
- Seasonal allergies
- Food allergies
- Asthma
- Eczema
- Chronic hives
Common questions
How many Allergy & Immunology providers are in Michigan?There are 138 Allergy & Immunology providers with active NPI records practicing in Michigan, according to federal NPPES data refreshed monthly.
Do Allergy & Immunology providers in Michigan offer telehealth?Yes. 38 of the 138 Allergy & Immunology providers in Michigan (about 28%) report offering telehealth services in CMS data.
Which cities in Michigan have the most Allergy & Immunology providers?Ann Arbor (20), Grand Rapids (17), West Bloomfield (6) have the highest concentration of Allergy & Immunology providers in Michigan.
How many Allergy & Immunology providers in Michigan received drug or device company payments?83 of 138 Allergy & Immunology providers in Michigan (60%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
What conditions do Allergy & Immunology providers in Michigan treat?Allergy & Immunology providers commonly treat seasonal allergies, food allergies, asthma, eczema, chronic hives and related conditions. Individual practices vary, so confirm with the provider before booking.
Where does this data come from?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.
Do most Allergists in Michigan work in independent practices or large health systems?Among 94 Allergists in Michigan enrolled in Medicare, 59% bill through a solo or small practice with fewer than 10 clinicians, 4% through a mid-size group of 10 to 99, and 37% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Allergists in Michigan work at?According to CMS facility affiliation records, the Michigan hospitals where the most Allergists hold privileges are University of Michigan Health System in Ann Arbor; Beaumont Hospital, Troy in Troy; Spectrum Health in Grand Rapids.
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