Gregory Raphael Kotnis, MD
NPI 1740336429ActiveIndividual· Pathology, Anatomic Pathology & Clinical Pathology· Denver, CO
Pathology, Anatomic Pathology & Clinical Pathology (MD) with Eastern Great Lakes Pathology PC, practicing in Denver, Colorado. Medicare paid $15,139 for services to 181 patients in 2024. Abbvie Inc. was the largest of 2 companies reporting payments in 2025, $42.89 in all, mostly food and beverage. Lists Kenmore Mercy Hospital and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1740336429 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jan 26, 2007 |
| Last updated in NPPES | Sep 24, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Pathology, Anatomic Pathology & Clinical Pathology Primary | 207ZP0102X | DR.0050096 | CO |
| Pathology, Anatomic Pathology & Clinical Pathology | 207ZP0102X | 0101252050 | VA |
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 - Pathology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 181 |
|---|---|
| Services billed | 580 across 25 procedure codes |
| Paid by Medicare | $15,139 |
Education and affiliations
| Graduation year | 2006 |
|---|---|
| Medicare specialty | Pathology |
Medical group
- Eastern Great Lakes Pathology PCBuffalo, NY · 14 clinicians
Hospital affiliations
- Kenmore Mercy HospitalKenmore, NY
- Mercy Hospital of BuffaloBuffalo, NY
- Mount St. Mary's Hospital & Health CenterLewiston, NY
- Sisters of Charity HospitalBuffalo, NY
Industry payments (Open Payments)
- 2025$42.89 · 2 payments from 2 companies
- 2024$54.63 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $22.75 | 1 |
| Oxford Gene Technology Inc | $20.14 | 1 |
What the 2025 payments were for
- Food and Beverage$42.89 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 64 pathologists in Denver · All pathologists in Colorado