Mark Masao Kanzawa, D.O.
NPI 1982617288ActiveIndividual· Psychiatry & Neurology, Psychiatry· Flint, MI
Psychiatry & Neurology, Psychiatry (D.O.) in Flint, Michigan, trained at Midwestern University, Chicago College of Osteopathic Med (class of 1987). Their prescriptions cost Medicare Part D more than their services did: $610,425 for 2,255 claims, against $13,770 paid for services in 2024. E.R. Squibb & Sons, L.L.C. was the largest of 8 companies reporting payments in 2025, $523.65 in all, mostly food and beverage.
Overview
| NPI | 1982617288 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Aug 15, 2006 |
| Last updated in NPPES | Mar 23, 2026 |
| Certified by provider | Mar 23, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | 5101010484 | 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 - Psychiatry (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 117 |
|---|---|
| Services billed | 492 across 5 procedure codes |
| Paid by Medicare | $13,770 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,255 · 2,410 30-day fills |
|---|---|
| Patients | 100 |
| Total drug cost | $610,425 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | Midwestern University, Chicago College of Osteopathic Med |
|---|---|
| Graduation year | 1987 |
| Medicare specialty | Psychiatry |
| Telehealth | Offers telehealth |
Medical group
- Genesee Health SystemFlint, MI · 35 clinicians
Industry payments (Open Payments)
- 2025$523.65 · 25 payments from 8 companies
- 2024$268.27 · 14 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| E.R. Squibb & Sons, L.L.C. | $226.67 | 11 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $73.43 | 3 |
| Alkermes, Inc. | $65.93 | 3 |
| Neurocrine Biosciences, Inc. | $51.43 | 3 |
| Otsuka America Pharmaceutical, Inc. | $35.85 | 2 |
What the 2025 payments were for
- Food and Beverage$523.65 · 25 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 42 psychiatrists in Flint · All psychiatrists in Michigan