Hal S. Shimazu, MD
NPI 1073682241ActiveIndividual· Family Medicine· Orange, CA
Family Medicine (MD) in Orange, California, trained at University of California, Davis School of Medicine (class of 1977). Their prescriptions cost Medicare Part D more than their services did: $930,030 for 10,076 claims, against $60,212 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 9 companies reporting payments in 2024, $241.61 in all, mostly food and beverage.
Overview
| NPI | 1073682241 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 6, 2006 |
| Last updated in NPPES | Nov 28, 2025 |
| Certified by provider | Nov 28, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | G37057 | CA |
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 - Family Practice (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 259 |
|---|---|
| Services billed | 1,023 across 36 procedure codes |
| Paid by Medicare | $60,212 |
Part D prescriptions in 2024
| Prescriptions (claims) | 10,076 · 25,683 30-day fills |
|---|---|
| Patients | 801 |
| Total drug cost | $930,030 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | University of California, Davis School of Medicine |
|---|---|
| Graduation year | 1977 |
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- Healthcare Partners Affiliates Medical GroupAnaheim, CA · 754 clinicians
Hospital affiliations
- Hoag Memorial Hospital PresbyterianNewport Beach, CA
- Providence St. Joseph HospitalOrange, CA
Industry payments (Open Payments)
- 2024$241.61 · 12 payments from 9 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $55.11 | 3 |
| Novo Nordisk Inc | $37.41 | 2 |
| Lilly USA, LLC | $27.79 | 1 |
| Abbvie Inc. | $27.12 | 1 |
| Abiomed | $22.36 | 1 |
What the 2024 payments were for
- Food and Beverage$241.61 · 12 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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