Gregory Barnett, M.D.
NPI 1669460846ActiveIndividual· Anesthesiology· Springfield, IL
Anesthesiology (M.D.) in Springfield, Illinois, trained at Indiana University School of Medicine (class of 1990). Medicare paid $4,740 for services to 61 patients in 2024. Mindray Ds USA, Inc. was the largest of 3 companies reporting payments in 2025, $89.17 in all, mostly food and beverage.
Overview
| NPI | 1669460846 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Oct 11, 2005 |
| Last updated in NPPES | Dec 29, 2021 |
| Certified by provider | Dec 29, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology Primary | 207L00000X | 036091297 | IL |
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 - Anesthesiology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 61 |
|---|---|
| Services billed | 68 across 22 procedure codes |
| Paid by Medicare | $4,740 |
Education and affiliations
| Medical school | Indiana University School of Medicine |
|---|---|
| Graduation year | 1990 |
| Medicare specialty | Anesthesiology |
Medical group
- North American Partners in Anesthesia Illinois LLCBerwyn, IL · 431 clinicians
Hospital affiliation
- St Johns HospitalSpringfield, IL
Industry payments (Open Payments)
- 2025$89.17 · 3 payments from 3 companies
- 2024$364.62 · 11 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Mindray Ds USA, Inc. | $45.13 | 1 |
| Merck Sharp & Dohme LLC | $22.04 | 1 |
| Ge Healthcare | $22.00 | 1 |
What the 2025 payments were for
- Food and Beverage$89.17 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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