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.
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. Christopher Hanzaker, MDKalamazoo, MI · $33 in drug and device payments (2025) · Telehealth ·
(269) 381-5060 Dr. Christopher Osterbauer, DOKalamazoo, MI · No drug or device payments recorded (2025) ·
(269) 341-8481 Dr. Cindi Smith, MDKalamazoo, MI · No drug or device payments recorded (2025) ·
(269) 341-8400 Dr. Corey Homan, MDKalamazoo, MI · $230 in drug and device payments (2025) ·
(269) 341-8481 Dr. David Doan, M.D.Kalamazoo, MI · $48 in drug and device payments (2025) ·
(269) 337-6300 Dr. David WongKalamazoo, MI · $75 in drug and device payments (2025) ·
(269) 341-8481 Dr. Debra Beard, MDKalamazoo, MI · No drug or device payments recorded (2025) ·
(269) 341-8822 Dr. Desmonda Wixson, MDKalamazoo, MI · No drug or device payments recorded (2025) ·
(269) 488-8672 Dr. Diana Gemanaru, MDKalamazoo, MI · $371 in drug and device payments (2025) ·
(269) 341-8481 Dr. Diane Peirce, MDKalamazoo, MI · No drug or device payments recorded (2025) ·
(269) 337-6300 Dr. Dilpat Kumar, MDKalamazoo, MI · $244 in drug and device payments (2025) ·
(269) 337-6300 Dr. Donald Gusfa, DOKalamazoo, MI · No drug or device payments recorded (2025) ·
(269) 544-3270 Dr. Douglas Campbell, M.D.Kalamazoo, MI · No drug or device payments recorded (2025) ·
(269) 226-5967 Dr. Edward Sternaman, MDKalamazoo, MI · $142 in drug and device payments (2025) ·
(269) 341-8481 Dr. Elizabeth Warner, MDKalamazoo, MI · No drug or device payments recorded (2025) ·
(269) 544-3276 Dr. Eman Talia, MDKalamazoo, MI · $447 in drug and device payments (2025) ·
(269) 341-8481 Dr. Emily Kane, DOKalamazoo, MI · No drug or device payments recorded (2025) ·
(269) 337-4400 Dr. Eric Edewaard, MDKalamazoo, MI · No drug or device payments recorded (2025) ·
(269) 337-6300 Dr. Eric Shay, M.D.Kalamazoo, MI · $19 in drug and device payments (2025) ·
(269) 381-5060 Dr. Eric Yoder, DOKalamazoo, MI · $160 in drug and device payments (2025) ·
(269) 341-8481 Dr. Eve Inchardi, MDKalamazoo, MI · No drug or device payments recorded (2025) ·
(269) 341-8282 Dr. Geneva Sagun, MDKalamazoo, MI · No drug or device payments recorded (2025) ·
(269) 488-8672 Dr. Genevieve Joyce, M.D.Kalamazoo, MI · No drug or device payments recorded (2025) ·
(269) 341-8481 Dr. Hansen Ming TangKalamazoo, MI · No drug or device payments recorded (2025) ·
(269) 341-6056 Dr. Harmanpreet Kaur, MDKalamazoo, MI · $29 in drug and device payments (2025) · Telehealth ·
(269) 381-5060 Dr. Hussein Akl, MDKalamazoo, MI · $858 in drug and device payments (2025) ·
(269) 341-8481 Dr. Jagadish Hegde, MDKalamazoo, MI · $36 in drug and device payments (2025) ·
(269) 341-8481 Dr. Jahnavi Mithyantha, MDKalamazoo, MI · $74 in drug and device payments (2025) ·
(269) 341-8481 Dr. James Carter, MDKalamazoo, MI · No drug or device payments recorded (2025) ·
(269) 341-8400 Dr. James Mclachlan, MDKalamazoo, MI · No drug or device payments recorded (2025) ·
(269) 341-7100 Dr. James Purtell, MDKalamazoo, MI · $211 in drug and device payments (2025) ·
(269) 286-7170 Dr. James Schnabel, MDKalamazoo, MI · $72 in drug and device payments (2025) ·
(269) 341-8481 Dr. James Vanderlugt, MDKalamazoo, MI · No drug or device payments recorded (2025) ·
(269) 276-8800 Dr. Janie Katarsky, DOKalamazoo, MI · No drug or device payments recorded (2025) ·
(269) 337-4400 Dr. Jennifer Driscoll, M.D.Kalamazoo, MI · No drug or device payments recorded (2025) ·
(269) 488-8672 Dr. Jennifer Newcastle, MDKalamazoo, MI · No drug or device payments recorded (2025) ·
(269) 544-3276 Dr. Jennifer Philburn, DOKalamazoo, MI · $29 in drug and device payments (2025) ·
(269) 341-8481 Dr. Joanne Baker, DOKalamazoo, MI · No drug or device payments recorded (2025) ·
(269) 337-6300 Dr. Johnathan Nguyen, MDKalamazoo, MI · No drug or device payments recorded (2025) ·
(269) 337-4400 Dr. John Cerovski, M.D.Kalamazoo, MI · No drug or device payments recorded (2025) ·
(269) 345-8626 Dr. John Lawlor, M.D.Kalamazoo, MI · $19 in drug and device payments (2025) · Telehealth ·
(269) 381-5060 Dr. Jonathan Epstein, MDKalamazoo, MI · No drug or device payments recorded (2025) ·
(269) 387-4267 Dr. Jose Angelo De Leon, MDKalamazoo, MI · $251 in drug and device payments (2025) ·
(269) 341-8471 Dr. Joseph D'ambrosio, M.D.Kalamazoo, MI · No drug or device payments recorded (2025) ·
(269) 337-6345 Dr. Karen Alcaraz, M.D.Kalamazoo, MI · $127 in drug and device payments (2025) ·
(269) 341-8481 Dr. Karthik Vijayaraghavan, MDKalamazoo, MI · $109 in drug and device payments (2025) ·
(269) 341-8481 Dr. Katherine Bolton, DOKalamazoo, MI · No drug or device payments recorded (2025) · Telehealth ·
(269) 544-3270 Dr. Kathryn Grossman, MDKalamazoo, MI · $14 in drug and device payments (2025) ·
(269) 341-8481 Dr. Kayla Grooters, MDKalamazoo, MI · No drug or device payments recorded (2025) ·
(419) 721-2065 Dr. Keith Bouffard, DOKalamazoo, MI · No drug or device payments recorded (2025) ·
(269) 341-6056 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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