Duncan Chapman, MD
NPI 1437474152ActiveIndividual· Family Medicine· Portage, MI
Family Medicine (MD) in Portage, Michigan, trained at Wayne State University School of Medicine (class of 2010). Their prescriptions cost Medicare Part D more than their services did: $1,244,464 for 11,434 claims, against $62,720 paid for services in 2024. Pfizer Inc. reported $23.53 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1437474152 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 6, 2010 |
| Last updated in NPPES | Oct 13, 2026 |
| Certified by provider | Oct 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 4301102712 | MI |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Family Practice (CA); Practitioner - Family Practice (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 243 |
|---|---|
| Services billed | 960 across 17 procedure codes |
| Paid by Medicare | $62,720 |
Part D prescriptions in 2024
| Prescriptions (claims) | 11,434 · 26,790 30-day fills |
|---|---|
| Patients | 765 |
| Total drug cost | $1,244,464 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | Wayne State University School of Medicine |
|---|---|
| Graduation year | 2010 |
| Medicare specialty | Family Practice |
Hospital affiliation
- Bronson Methodist HospitalKalamazoo, MI
Industry payments (Open Payments)
- 2025$23.53 · 1 payment from 1 company
- 2024$812.41 · 33 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $23.53 | 1 |
What the 2025 payments were for
- Food and Beverage$23.53 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 40 family medicine physicians in Portage · All family medicine physicians in Michigan