Robert Cory Proffer, PHYSICIAN ASSISTANT
NPI 1376174417ActiveIndividual· Physician Assistant, Medical· Saint Louis, MO
Physician Assistant, Medical (PHYSICIAN ASSISTANT) with Mercy Clinic ENT LLC, practicing in Saint Louis, Missouri. In 2024 Medicare paid $11,657 for 121 patients, and Part D covered 390 of their prescriptions, 86% of them generic. Depuy Synthes Sales Inc. was the largest of 5 companies reporting payments in 2025, $351.52 in all, mostly food and beverage. Lists Mercy Hospital Jefferson and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1376174417 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PHYSICIAN ASSISTANT |
| Sole proprietor | No |
| NPI issued | Jan 28, 2020 |
| Last updated in NPPES | Jan 28, 2020 |
| Certified by provider | Jan 28, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Medical Primary | 363AM0700X | — | — |
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 - Physician Assistant (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 121 |
|---|---|
| Services billed | 191 across 30 procedure codes |
| Paid by Medicare | $11,657 |
Part D prescriptions in 2024
| Prescriptions (claims) | 390 · 549 30-day fills |
|---|---|
| Patients | 163 |
| Total drug cost | $5,607 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 2019 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Mercy Clinic ENT LLCSaint Louis, MO · 12 clinicians
Hospital affiliations
- Mercy Hospital JeffersonCrystal City, MO
- Mercy Hospital SouthSaint Louis, MO
- Mercy Hospital St LouisSaint Louis, MO
Industry payments (Open Payments)
- 2025$351.52 · 12 payments from 5 companies
- 2024$151.59 · 6 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Depuy Synthes Sales Inc. | $122.26 | 1 |
| Regeneron Healthcare Solutions, Inc. | $100.08 | 4 |
| Glaxosmithkline, LLC. | $55.04 | 3 |
| Genzyme Corporation | $50.74 | 3 |
| Merck Sharp & Dohme LLC | $23.40 | 1 |
What the 2025 payments were for
- Food and Beverage$351.52 · 12 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 100 physician assistants in Saint Louis · All physician assistants in Missouri