Christopher M. Chambers, MD, PHD
NPI 1184831869ActiveIndividual· Surgery, Vascular Surgery· Grand Rapids, MI
Surgery, Vascular Surgery (MD, PHD) in Grand Rapids, Michigan, trained at University of South Florida College of Medicine (class of 2002). In 2024 Medicare paid $76,033 for 410 patients, and Part D covered 184 of their prescriptions, 65% of them generic. Boston Scientific Corporation was the largest of 11 companies reporting payments in 2025, $632.51 in all, mostly food and beverage.
Overview
| NPI | 1184831869 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD, PHD |
| Sole proprietor | No |
| NPI issued | May 16, 2007 |
| Last updated in NPPES | Sep 22, 2025 |
| Certified by provider | Sep 22, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery, Vascular Surgery Primary | 2086S0129X | 4301091284 | MI |
| Surgery, Vascular Surgery | 2086S0129X | 036158917 | IL |
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 - Vascular Surgery (IL); Practitioner - Vascular Surgery (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 410 |
|---|---|
| Services billed | 658 across 68 procedure codes |
| Paid by Medicare | $76,033 |
Part D prescriptions in 2024
| Prescriptions (claims) | 184 · 383 30-day fills |
|---|---|
| Patients | 59 |
| Total drug cost | $42,622 |
| Generic share | 65% of claims |
Education and affiliations
| Medical school | University of South Florida College of Medicine |
|---|---|
| Graduation year | 2002 |
| Medicare specialty | Vascular Surgery |
Medical groups
- Spectrum Health Primary Care PartnersGrand Rapids, MI · 2,294 clinicians
- Fairview Heights Medical Group SCAlton, IL · 444 clinicians
Hospital affiliations
- Corewell Health Big Rapids HospitalBig Rapids, MI
- Corewell Health Reed City HospitalReed City, MI
- Memorial HospitalBelleville, IL
- Spectrum HealthGrand Rapids, MI
- Spectrum Health United HospitalGreenville, MI
Industry payments (Open Payments)
- 2025$632.51 · 15 payments from 11 companies
- 2024$328.34 · 10 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boston Scientific Corporation | $248.79 | 3 |
| Cook Medical LLC | $124.13 | 2 |
| Ethicon US, LLC | $53.31 | 2 |
| Kerecis Limited | $44.00 | 1 |
| Stryker Corporation | $35.77 | 1 |
What the 2025 payments were for
- Food and Beverage$632.51 · 15 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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