Mary Ellen Ernst, CRNA
NPI 1477864213ActiveIndividual· Nurse Anesthetist, Certified Registered· O Fallon, MO
Nurse Anesthetist, Certified Registered (CRNA) with Orthomed Staffing LLC and 1 other group, practicing in O Fallon, Missouri. Medicare paid $3,847 for services to 54 patients in 2024. Takeda Pharmaceuticals U.S.A., Inc. reported $19.57 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1477864213 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | CRNA |
| Sole proprietor | No |
| NPI issued | Jun 26, 2010 |
| Last updated in NPPES | Apr 17, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Anesthetist, Certified Registered Primary | 367500000X | 2010020077 | MO |
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) (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 54 |
|---|---|
| Services billed | 54 across 14 procedure codes |
| Paid by Medicare | $3,847 |
Education and affiliations
| Graduation year | 2010 |
|---|---|
| Medicare specialty | Certified Registered Nurse Anesthetist (Crna) |
Medical groups
- Orthomed Staffing LLCPlano, TX · 416 clinicians
- Western Anesthesiology Associates IncChesterfield, MO · 256 clinicians
Industry payments (Open Payments)
- 2025$19.57 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Takeda Pharmaceuticals U.S.A., Inc. | $19.57 | 1 |
What the 2025 payments were for
- Food and Beverage$19.57 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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