William McMahan, CRNA
NPI 1316002587ActiveIndividual· Nurse Anesthetist, Certified Registered· Biloxi, MS
Nurse Anesthetist, Certified Registered (CRNA) with Singing River Health System and 1 other group, practicing in Biloxi, Mississippi. Medicare paid $12,404 for services to 95 patients in 2024. Boston Scientific Corporation was the largest of 3 companies reporting payments in 2025, $102.27 in all, mostly food and beverage. Lists Singing River Gulfport as a hospital affiliation.
Overview
| NPI | 1316002587 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | CRNA |
| Sole proprietor | No |
| NPI issued | Dec 27, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Anesthetist, Certified Registered Primary | 367500000X | R862339 | MS |
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 - Certified Registered Nurse Anesthetist (CRNA) (MS) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 95 |
|---|---|
| Services billed | 128 across 36 procedure codes |
| Paid by Medicare | $12,404 |
Education and affiliations
| Graduation year | 2000 |
|---|---|
| Medicare specialty | Certified Registered Nurse Anesthetist (Crna) |
Medical groups
- Singing River Health SystemOcean Springs, MS · 295 clinicians
- Jackson County AnesthesiaPascagoula, MS · 38 clinicians
Hospital affiliation
- Singing River GulfportGulfport, MS
Industry payments (Open Payments)
- 2025$102.27 · 4 payments from 3 companies
- 2024$160.32 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boston Scientific Corporation | $51.89 | 2 |
| Merck Sharp & Dohme LLC | $26.11 | 1 |
| Ambu Inc. | $24.27 | 1 |
What the 2025 payments were for
- Food and Beverage$102.27 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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