Margaret Hartig
NPI 1225120033ActiveIndividual· Nurse Anesthetist, Certified Registered· Chicago, IL
Nurse Anesthetist, Certified Registered with Lawrence Anesthesia Services LLC, practicing in Chicago, Illinois. Medicare paid $18,465 for services to 138 patients in 2024. Lists St Vincent Hospital as a hospital affiliation.
Overview
| NPI | 1225120033 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Sep 29, 2006 |
| Last updated in NPPES | Nov 6, 2026 |
| Certified by provider | Nov 6, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Anesthetist, Certified Registered Primary | 367500000X | 209002435 | IL |
| Nurse Anesthetist, Certified Registered | 367500000X | RN10007226 | MA |
| Nurse Practitioner | 363L00000X | 041308063 | 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) (AR); Practitioner - Certified Registered Nurse Anesthetist (CRNA) (IL); Practitioner - Certified Registered Nurse Anesthetist (CRNA) (MA); Practitioner - Certified Registered Nurse Anesthetist (CRNA) (MO); Practitioner - Certified Registered Nurse Anesthetist (CRNA) (PA); Practitioner - Certified Registered Nurse Anesthetist (CRNA) (VA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 138 |
|---|---|
| Services billed | 138 across 47 procedure codes |
| Paid by Medicare | $18,465 |
Education and affiliations
| Graduation year | 2016 |
|---|---|
| Medicare specialty | Certified Registered Nurse Anesthetist (Crna) |
Medical group
- Lawrence Anesthesia Services LLCWorcester, MA · 125 clinicians
Hospital affiliation
- St Vincent HospitalWorcester, MA
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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