Internal Medicine Doctors in Michigan
Data updated monthly · Last refresh October 2026
5,708 Internal Medicine providers practice in Michigan, including 1,100 (19%) offering telehealth. The largest concentration is in Detroit. 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.
5,708providers
1,100telehealth
Detroittop city
Internal Medicine by city in Michigan
Choose a city to see providers there.
Where Internal Medicine Doctors in Michigan practice
From CMS Medicare enrollment records covering 3,119 of the 5,708 providers listed here (55%). Providers who do not bill Medicare are not included in these figures.
21%solo or small practice (under 10 clinicians)
16%mid-size group (10 to 99)
62%large group or health system (100+)
Largest practice groups
| Group (as registered with Medicare) | Internal Medicine Doctors | All clinicians in group | Main city |
| Regents of the University of Michigan | 264 | 3,344 | Ann Arbor |
| Iha Health Services Corp.oration | 211 | 1,149 | Ypsilanti |
| Henry Ford Health System | 190 | 2,550 | Detroit |
| Spectrum Health Primary Care Partners | 184 | 2,283 | Grand Rapids |
| Bronson Methodist Hospital | 88 | 721 | Kalamazoo |
Hospitals where they hold privileges
| Hospital | City | Ownership | CMS star rating | Internal Medicine Doctors affiliated |
| Beaumont Hospital Royal Oak | Royal Oak | Nonprofit | 3 of 5 | 518 |
| Henry Ford Health Hospital | Detroit | Nonprofit | 3 of 5 | 370 |
| University of Michigan Health System | Ann Arbor | Nonprofit | 4 of 5 | 355 |
| Beaumont Hospital, Troy | Troy | Nonprofit | 4 of 5 | 295 |
| Spectrum Health | Grand Rapids | Nonprofit | 4 of 5 | 263 |
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.
Internal Medicine 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. John Mogor, M.D.Ada, MI · No drug or device payments recorded (2025) · Telehealth ·
(616) 825-3530 Dr. Robert Mackinder, MDAda, MI · No drug or device payments recorded (2025) · Telehealth ·
(616) 825-3530 Dr. Stephen Macedo, MDAda, MI · No drug or device payments recorded (2025) · Telehealth ·
(616) 825-3530 Dr. Hamza Aurakzai, M.D.Adrian, MI · No drug or device payments recorded (2025) ·
(313) 799-0700 Dr. Hemlata Bhaskar, M.D.Adrian, MI · No drug or device payments recorded (2025) · Telehealth ·
(517) 263-2187 Dr. Inad Haddad, M.D.Adrian, MI · No drug or device payments recorded (2025) ·
(517) 263-7577 Dr. Jeanne Schall, DOAdrian, MI · No drug or device payments recorded (2025) ·
(517) 577-0000 Dr. Josefina Samson, M.D.Adrian, MI · No drug or device payments recorded (2025) ·
(517) 263-0597 Dr. Julie Yaroch, D.O.Adrian, MI · No drug or device payments recorded (2025) ·
(517) 263-2187 Dr. Manishkumar Patel, MDAdrian, MI · $17 in drug and device payments (2025) · Telehealth ·
(517) 265-0600 Dr. Michael Mcauliffe, M.D.Adrian, MI · No drug or device payments recorded (2025) ·
(517) 265-0900 Dr. Narinder Batra, M.D.Adrian, MI · $1,257 in drug and device payments (2025) · Telehealth ·
(517) 265-6433 Dr. Nour Chams, MDAdrian, MI · $24 in drug and device payments (2025) · Telehealth ·
(517) 265-0600 Dr. Padmaja Mouli, MDAdrian, MI · No drug or device payments recorded (2025) ·
(517) 265-2175 Dr. Paul Gietzen, M.D.Adrian, MI · No drug or device payments recorded (2025) ·
(517) 263-2187 Dr. Wayne Smith, MDAdrian, MI · No drug or device payments recorded (2025) ·
(517) 265-0600 Dr. Carrie Nicholson, M.D.Albion, MI · No drug or device payments recorded (2025) ·
(517) 629-2134 Dr. John Roosenberg, M.D.Allegan, MI · No drug or device payments recorded (2025) ·
(269) 673-2158 Dr. Nabil Nouna, MDAllegan, MI · $3,201 in drug and device payments (2025) · Telehealth ·
(269) 673-2179 Dr. Eqdam Radhi, MDAllen Park, MI · $1,149 in drug and device payments (2025) · Telehealth ·
(313) 789-7968 Dr. Jalal Thwainey, MDAllen Park, MI · $3,502 in drug and device payments (2025) ·
(313) 383-8310 Dr. Maath Alani, MDAllen Park, MI · $733 in drug and device payments (2025) · Telehealth ·
(313) 383-7071 Dr. Martha GenigAllen Park, MI · $39 in drug and device payments (2025) ·
(313) 388-0033 Dr. Mohammed Yazbek, M.D.Allen Park, MI · No drug or device payments recorded (2025) ·
(313) 383-3333 Dr. Muhammad Wasiullah, MDAllen Park, MI · $47 in drug and device payments (2025) ·
(313) 299-3420 Dr. Nazer Abdel Fattah, D.OAllen Park, MI · No drug or device payments recorded (2025) ·
(313) 383-3333 Dr. Sambamurty Kalahasty, M.D.Allen Park, MI · No drug or device payments recorded (2025) ·
(313) 382-0505 Dr. Vinod Sanghi, M.D.Allen Park, MI · No drug or device payments recorded (2025) ·
(313) 381-2528 Dr. Elizabeth Nerbun, M.D.Alma, MI · No drug or device payments recorded (2025) ·
(989) 463-3451 Dr. Jeanine Ernest, MDAlma, MI · No drug or device payments recorded (2025) ·
(989) 463-5876 Dr. Pankaj Jandwani, M.D.Alma, MI · No drug or device payments recorded (2025) ·
(989) 463-5740 Dr. Brette Guckian, DOAlpena, MI · No drug or device payments recorded (2025) ·
(989) 356-7000 Dr. Christopher Gerling, MDAlpena, MI · No drug or device payments recorded (2025) ·
(989) 340-1211 Dr. Donald Miller, MDAlpena, MI · No drug or device payments recorded (2025) ·
(989) 356-2194 Dr. Henry Stibitz, M.D.Alpena, MI · No drug or device payments recorded (2025) ·
(989) 356-3485 Dr. Keith Moody, D.OAlpena, MI · No drug or device payments recorded (2025) ·
(989) 340-1211 Dr. William Hitzelberger, D.O. Dr. Aaron Berg, MDAnn Arbor, MI · No drug or device payments recorded (2025) ·
(734) 936-4000 Dr. Aaron Fisher, D.O.Ann Arbor, MI · No drug or device payments recorded (2025) ·
(734) 936-5582 Dr. Aaron Parzuchowski, MD MPH MSCAnn Arbor, MI · No drug or device payments recorded (2025) ·
(734) 845-5500 Dr. Abdulkader Hmidan Simsam, MDAnn Arbor, MI · No drug or device payments recorded (2025) ·
(734) 936-4000 Dr. Abigail Erinc, MDAnn Arbor, MI · No drug or device payments recorded (2025) ·
(734) 936-4000 Dr. Adam Azar, MDAnn Arbor, MI · No drug or device payments recorded (2025) ·
(734) 936-4000 Conditions Internal Medicine providers in Michigan commonly treat
Patients often search by condition rather than specialty. These are conditions typically managed by Internal Medicine providers. Individual practices vary, so confirm with the provider before booking.
- High blood pressure
- Type 2 diabetes
- High cholesterol
- Preventive care
- Chronic disease management
Common questions
How many Internal Medicine providers are in Michigan?There are 5,708 Internal Medicine providers with active NPI records practicing in Michigan, according to federal NPPES data refreshed monthly.
Do Internal Medicine providers in Michigan offer telehealth?Yes. 1,100 of the 5,708 Internal Medicine providers in Michigan (about 19%) report offering telehealth services in CMS data.
Which cities in Michigan have the most Internal Medicine providers?Detroit (613), Ann Arbor (478), Grand Rapids (451) have the highest concentration of Internal Medicine providers in Michigan.
How many Internal Medicine providers in Michigan received drug or device company payments?2,043 of 5,708 Internal Medicine providers in Michigan (36%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
What conditions do Internal Medicine providers in Michigan treat?Internal Medicine providers commonly treat high blood pressure, type 2 diabetes, high cholesterol, preventive care, chronic disease management 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 Internal Medicine Doctors in Michigan work in independent practices or large health systems?Among 3,119 Internal Medicine Doctors in Michigan enrolled in Medicare, 21% bill through a solo or small practice with fewer than 10 clinicians, 16% through a mid-size group of 10 to 99, and 62% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Internal Medicine Doctors in Michigan work at?According to CMS facility affiliation records, the Michigan hospitals where the most Internal Medicine Doctors hold privileges are Beaumont Hospital Royal Oak in Royal Oak; Henry Ford Health Hospital in Detroit; University of Michigan Health System in Ann Arbor.
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