Lauren Alexandra Llewellyn, CRNA
NPI 1316616899ActiveIndividual· Nurse Anesthetist, Certified Registered· Oak Park, IL
Nurse Anesthetist, Certified Registered (CRNA) with U S Anesthesia Partners of Texas, PA, practicing in Oak Park, Illinois. Medicare paid $16,274 for services to 105 patients in 2024. Merck Sharp & Dohme LLC reported $18.24 in payments in 2025, mostly food and beverage. Lists Memorial Hermann Hospital System and 1 other hospital as hospital affiliations.
Overview
| NPI | 1316616899 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | CRNA |
| Sole proprietor | No |
| NPI issued | Sep 8, 2021 |
| Last updated in NPPES | Jan 5, 2023 |
| Certified by provider | Jan 5, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Anesthetist, Certified Registered Primary | 367500000X | 1105163 | TX |
| Nurse Anesthetist, Certified Registered | 367500000X | 209.024865 | IL |
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) (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 105 |
|---|---|
| Services billed | 106 across 23 procedure codes |
| Paid by Medicare | $16,274 |
Education and affiliations
| Graduation year | 2021 |
|---|---|
| Medicare specialty | Certified Registered Nurse Anesthetist (Crna) |
Medical group
- U S Anesthesia Partners of Texas, PAHouston, TX · 2,752 clinicians
Hospital affiliations
- Memorial Hermann Hospital SystemHouston, TX
- Texas Orthopedic HospitalHouston, TX
Industry payments (Open Payments)
- 2025$18.24 · 1 payment from 1 company
- 2024$36.90 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $18.24 | 1 |
What the 2025 payments were for
- Food and Beverage$18.24 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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