Theodore J. Vanderkooi, M.D.
NPI 1801849120ActiveIndividual· Surgery· Muskegon, MI
Surgery (M.D.) in Muskegon, Michigan, trained at University of Michigan Medical School (class of 1995). 104 Medicare patients in 2024, $38,516 paid; nearly all of their 120 Part D prescriptions were generic (97%). Lemaitre Vascular, Inc. was the largest of 4 companies reporting payments in 2025, $180.91 in all, mostly food and beverage.
Overview
| NPI | 1801849120 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 18, 2006 |
| Last updated in NPPES | Sep 9, 2026 |
| Certified by provider | Sep 9, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | 065627 | 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 - General Surgery (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 104 |
|---|---|
| Services billed | 238 across 63 procedure codes |
| Paid by Medicare | $38,516 |
Part D prescriptions in 2024
| Prescriptions (claims) | 120 · 123 30-day fills |
|---|---|
| Patients | 67 |
| Total drug cost | $1,702 |
| Generic share | 97% of claims |
Education and affiliations
| Medical school | University of Michigan Medical School |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | General Surgery |
Medical group
- Muskegon Surgical Associates PCMuskegon, MI · 28 clinicians
Hospital affiliation
- Trinity Health Muskegon HospitalMuskegon, MI
Industry payments (Open Payments)
- 2025$180.91 · 6 payments from 4 companies
- 2024$78.62 · 4 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lemaitre Vascular, Inc. | $84.80 | 2 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $38.40 | 2 |
| Otsuka America Pharmaceutical, Inc. | $29.90 | 1 |
| Novo Nordisk Inc | $27.81 | 1 |
What the 2025 payments were for
- Food and Beverage$180.91 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 19 general surgeons in Muskegon · All general surgeons in Michigan