Mario Alexander Nievas, CRNA
NPI 1043553944ActiveIndividual· Nurse Anesthetist, Certified Registered· Pensacola, FL
Nurse Anesthetist, Certified Registered (CRNA) with Etas PLLC, practicing in Pensacola, Florida. Medicare paid $11,919 for services to 138 patients in 2024. Merck Sharp & Dohme LLC was the largest of 4 companies reporting payments in 2025, $100.74 in all, mostly food and beverage. Lists Memorial Hospital at Gulfport as a hospital affiliation.
Overview
| NPI | 1043553944 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | CRNA |
| Sole proprietor | Yes |
| NPI issued | Mar 29, 2013 |
| Last updated in NPPES | Mar 29, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Anesthetist, Certified Registered Primary | 367500000X | ARNP9358885 | FL |
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) (MS) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 138 |
|---|---|
| Services billed | 139 across 40 procedure codes |
| Paid by Medicare | $11,919 |
Education and affiliations
| Graduation year | 2008 |
|---|---|
| Medicare specialty | Certified Registered Nurse Anesthetist (Crna) |
Medical group
- Etas PLLCGulfport, MS · 42 clinicians
Hospital affiliation
- Memorial Hospital at GulfportGulfport, MS
Industry payments (Open Payments)
- 2025$100.74 · 5 payments from 4 companies
- 2024$47.00 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $43.17 | 2 |
| Abiomed | $25.58 | 1 |
| Chiesi USA, Inc. | $18.24 | 1 |
| Ambu Inc. | $13.75 | 1 |
What the 2025 payments were for
- Food and Beverage$100.74 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Nurse Anesthetist, Certified Registered providers in Pensacola
- 1619444502
- 1972697936
- 1992524615
- 1023091535
- 1912990946
- 1992877294
- 1275754939
- 1033237201
- 1669043378
- 1649819418
- 1871801225
- 1407843964
All Nurse Anesthetist, Certified Registered providers in Florida →