Greg A. Lillvis, AA
NPI 1184915894ActiveIndividual· Anesthesiologist Assistant· Columbus, OH
Anesthesiologist Assistant (AA) with Osu Observation Medicine, LLC, practicing in Columbus, Ohio. Medicare paid $18,567 for services to 104 patients in 2024. Lists Ohio State University State Health System as a hospital affiliation.
Overview
| NPI | 1184915894 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | AA |
| Sole proprietor | No |
| NPI issued | Apr 28, 2011 |
| Last updated in NPPES | Jul 14, 2025 |
| Certified by provider | Jul 14, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiologist Assistant Primary | 367H00000X | 67.000181 | OH |
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 - Anesthesiology Assistant (OH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 104 |
|---|---|
| Services billed | 105 across 30 procedure codes |
| Paid by Medicare | $18,567 |
Education and affiliations
| Graduation year | 2011 |
|---|---|
| Medicare specialty | Anesthesiology Assistant |
Medical group
- Osu Observation Medicine, LLCColumbus, OH · 436 clinicians
Hospital affiliation
- Ohio State University State Health SystemColumbus, OH
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All 69 Anesthesiologist Assistant providers in Columbus · All Anesthesiologist Assistant providers in Ohio