Wallace J. Hayasaka, M.D.
NPI 1477538155ActiveIndividual· Anesthesiology· Bozeman, MT
Anesthesiology (M.D.) in Bozeman, Montana, trained at Loma Linda University School of Medicine (class of 1996). Medicare paid $36,506 for services to 213 patients in 2024.
Overview
| NPI | 1477538155 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Dec 14, 2005 |
| Last updated in NPPES | Dec 15, 2020 |
| Certified by provider | Dec 15, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology Primary | 207L00000X | 57767 | MT |
| Anesthesiology | 207L00000X | 52953 | AZ |
| Anesthesiology | 207L00000X | 38727 | CO |
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 - Anesthesiology (MT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 213 |
|---|---|
| Services billed | 271 across 60 procedure codes |
| Paid by Medicare | $36,506 |
Education and affiliations
| Medical school | Loma Linda University School of Medicine |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Anesthesiology |
Medical groups
- Billings Clinic Specialty Supplies and Services, LLCBillings, MT · 824 clinicians
- Gallatin Valley Anesthesia Associates PCBozeman, MT · 35 clinicians
Hospital affiliations
- Billings Clinic HospitalBillings, MT
- Bozeman Health Deaconess HospitalBozeman, MT
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 27 anesthesiologists in Bozeman · All anesthesiologists in Montana