Melissa Dawn Gregorius, CRNA
NPI 1942440359ActiveIndividual· Nurse Anesthetist, Certified Registered· Redlands, CA
Nurse Anesthetist, Certified Registered (CRNA) with Mai Nursing Anesthesia PC and 2 other groups, practicing in Redlands, California. Medicare paid $1,467 for services to 11 patients in 2024. Lists Cabinet Peaks Medical Center as a hospital affiliation.
Overview
| NPI | 1942440359 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | CRNA |
| Sole proprietor | No |
| NPI issued | Feb 24, 2009 |
| Last updated in NPPES | Feb 1, 2022 |
| Certified by provider | Feb 1, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Anesthetist, Certified Registered Primary | 367500000X | 3832 | CA |
| Registered Nurse | 163W00000X | 595317 | 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 - Certified Registered Nurse Anesthetist (CRNA) (CA); Practitioner - Certified Registered Nurse Anesthetist (CRNA) (MT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 11 |
|---|---|
| Services billed | 11 across 7 procedure codes |
| Paid by Medicare | $1,467 |
Education and affiliations
| Graduation year | 2009 |
|---|---|
| Medicare specialty | Certified Registered Nurse Anesthetist (Crna) |
Medical groups
- Mai Nursing Anesthesia PCPinole, CA · 35 clinicians
- St Johns Lutheran Hospital IncLibby, MT · 34 clinicians
- Anesthesia Care Consultants IncSanta Cruz, CA · 18 clinicians
Hospital affiliation
- Cabinet Peaks Medical CenterLibby, 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 15 nurse anesthetists in Redlands · All nurse anesthetists in California