Hiram Great Diaz Diaz, CRNA
NPI 1821600420ActiveIndividual· Nurse Anesthetist, Certified Registered· Anaheim, CA
Nurse Anesthetist, Certified Registered (CRNA) with Darin Rentz DO PC, practicing in Anaheim, California. Medicare paid $21,067 for services to 83 patients in 2024. Lists Riverside Community Hospital as a hospital affiliation.
Overview
| NPI | 1821600420 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | CRNA |
| Sole proprietor | Yes |
| NPI issued | Aug 17, 2020 |
| Last updated in NPPES | Sep 20, 2023 |
| Certified by provider | Sep 20, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Anesthetist, Certified Registered Primary | 367500000X | 95002190 | CA |
| Registered Nurse, Critical Care Medicine | 163WC0200X | 95066307 | CA |
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) (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 83 |
|---|---|
| Services billed | 104 across 38 procedure codes |
| Paid by Medicare | $21,067 |
Education and affiliations
| Graduation year | 2023 |
|---|---|
| Medicare specialty | Certified Registered Nurse Anesthetist (Crna) |
Medical group
- Darin Rentz DO PCRedlands, CA · 124 clinicians
Hospital affiliation
- Riverside Community HospitalRiverside, CA
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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