William Ratigan Ranger, M.D.
NPI 1235121989ActiveIndividual· Surgery, Vascular Surgery· Kalamazoo, MI
Surgery, Vascular Surgery (M.D.) in Kalamazoo, Michigan, trained at University of Michigan Medical School (class of 1990). In 2024 Medicare paid $442,143 for 325 patients, and Part D covered 226 of their prescriptions, 83% of them generic. Stryker Corporation was the largest of 18 companies reporting payments in 2025, $1,353 in all, mostly food and beverage.
Overview
| NPI | 1235121989 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 18, 2005 |
| Last updated in NPPES | Jan 31, 2023 |
| Certified by provider | Jan 31, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery, Vascular Surgery Primary | 2086S0129X | 4301058472 | MI |
| Surgery | 208600000X | WR05847 | 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 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Vascular Surgery (MI); Practitioner - General Surgery (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 325 |
|---|---|
| Services billed | 9,761 across 123 procedure codes |
| Paid by Medicare | $442,143 |
Part D prescriptions in 2024
| Prescriptions (claims) | 226 · 370 30-day fills |
|---|---|
| Patients | 68 |
| Total drug cost | $35,121 |
| Generic share | 83% of claims |
Education and affiliations
| Medical school | University of Michigan Medical School |
|---|---|
| Graduation year | 1990 |
| Medicare specialty | Vascular Surgery |
| Secondary specialties | General Surgery, Peripheral Vascular Disease |
Medical groups
- Post Acute Medical PLLCSalt Lake City, UT · 439 clinicians
- Paragon Health PCKalamazoo, MI · 53 clinicians
- Ascension Borgess HospitalKalamazoo, MI · 37 clinicians
- Acv Traverse City PLLCTraverse City, MI · 3 clinicians
Hospital affiliation
- Borgess Medical CenterKalamazoo, MI
Other facilities
- Medilodge at the ShoreNursing home · Grand Haven, MI
- Mission Point Nursing & Physical Rehabilitation CeNursing home · Grandville, MI
Industry payments (Open Payments)
- 2025$1,353 · 40 payments from 18 companies
- 2024$1,201 · 37 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Stryker Corporation | $365.57 | 7 |
| Kerecis Limited | $239.07 | 7 |
| Organogenesis Inc. | $148.42 | 2 |
| Cook Medical LLC | $104.14 | 2 |
| W. L. Gore & Associates, Inc. | $93.83 | 5 |
What the 2025 payments were for
- Food and Beverage$1,353 · 40 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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