May Puiyan Chan, M.D.
NPI 1639318223ActiveIndividual· Pathology, Anatomic Pathology· Ann Arbor, MI
Pathology, Anatomic Pathology (M.D.) in Ann Arbor, Michigan, trained at State Un of Ny, Buffalo School of Dental Medicine (class of 2007). Medicare paid $47,364 for services to 671 patients in 2024. Johnson & Johnson Vision Care, Inc. reported $19.29 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1639318223 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Feb 5, 2009 |
| Last updated in NPPES | Aug 26, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Pathology, Anatomic Pathology Primary | 207ZP0101X | 4301099342 | MI |
| Pathology, Anatomic Pathology | 207ZP0101X | 232305 | MA |
| Dermatology, Dermatopathology | 207ND0900X | 4301099342 | MI |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Pathology (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 671 |
|---|---|
| Services billed | 1,525 across 18 procedure codes |
| Paid by Medicare | $47,364 |
Education and affiliations
| Medical school | State Un of Ny, Buffalo School of Dental Medicine |
|---|---|
| Graduation year | 2007 |
| Medicare specialty | Pathology |
Medical group
- Regents of the University of MichiganAnn Arbor, MI · 3,346 clinicians
Hospital affiliations
- Mymichigan Medical Center MidlandMidland, MI
- University of Michigan Health SystemAnn Arbor, MI
Industry payments (Open Payments)
- 2025$19.29 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Johnson & Johnson Vision Care, Inc. | $19.29 | 1 |
What the 2025 payments were for
- Food and Beverage$19.29 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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