Joseph W. Hassler, CRNA
NPI 1881932960ActiveIndividual· Nurse Anesthetist, Certified Registered· Washington, MO
Nurse Anesthetist, Certified Registered (CRNA) with Western Anesthesiology Associates Inc, practicing in Washington, Missouri. Medicare paid $6,476 for services to 75 patients in 2024. Depuy Synthes Sales Inc. was the largest of 2 companies reporting payments in 2025, $93.95 in all, mostly food and beverage. Lists Mercy Hospital Washington as a hospital affiliation.
Overview
| NPI | 1881932960 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | CRNA |
| Sole proprietor | No |
| NPI issued | Jan 23, 2013 |
| Last updated in NPPES | Nov 5, 2021 |
| Certified by provider | Nov 5, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Anesthetist, Certified Registered Primary | 367500000X | 2013001823 | MO |
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 - Certified Registered Nurse Anesthetist (CRNA) (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 75 |
|---|---|
| Services billed | 84 across 28 procedure codes |
| Paid by Medicare | $6,476 |
Education and affiliations
| Graduation year | 2007 |
|---|---|
| Medicare specialty | Certified Registered Nurse Anesthetist (Crna) |
Medical group
- Western Anesthesiology Associates IncChesterfield, MO · 256 clinicians
Hospital affiliation
- Mercy Hospital WashingtonWashington, MO
Industry payments (Open Payments)
- 2025$93.95 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Depuy Synthes Sales Inc. | $74.19 | 2 |
| Merck Sharp & Dohme LLC | $19.76 | 1 |
What the 2025 payments were for
- Food and Beverage$93.95 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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