Mary Elizabeth Walker, RN
NPI 1104172808ActiveIndividual· Nurse Anesthetist, Certified Registered· Houston, TX
Nurse Anesthetist, Certified Registered (RN) with Emergenchealth PLLC and 1 other group, practicing in Houston, Texas. Medicare paid $16,616 for services to 108 patients in 2024. Lists Christus Southeast Texas- St Elizabeth and 1 other hospital as hospital affiliations.
Overview
| NPI | 1104172808 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | RN |
| Sole proprietor | No |
| NPI issued | Jul 31, 2012 |
| Last updated in NPPES | Oct 25, 2023 |
| Certified by provider | Oct 25, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Anesthetist, Certified Registered Primary | 367500000X | 625752 | TX |
| Nurse Anesthetist, Certified Registered | 367500000X | 625752 | IN |
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) (IN); Practitioner - Certified Registered Nurse Anesthetist (CRNA) (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 108 |
|---|---|
| Services billed | 109 across 38 procedure codes |
| Paid by Medicare | $16,616 |
Education and affiliations
| Graduation year | 2010 |
|---|---|
| Medicare specialty | Certified Registered Nurse Anesthetist (Crna) |
Medical groups
- Emergenchealth PLLCTexarkana, TX · 1,056 clinicians
- Bhs Physicians Network, IncBrownsville, TX · 706 clinicians
Hospital affiliations
- Christus Southeast Texas- St ElizabethBeaumont, TX
- Sierra Medical CenterEl Paso, TX
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 1,161 nurse anesthetists in Houston · All nurse anesthetists in Texas