Russell Kent Pachynski, MD
NPI 1861568750ActiveIndividual· Internal Medicine, Medical Oncology· Saint Louis, MO
Internal Medicine, Medical Oncology (MD) in Saint Louis, Missouri, trained at University of Wisconsin School of Medicine (class of 2003). 152 Medicare patients in 2024, $439,161 paid; nearly all of their 794 Part D prescriptions were generic (90%). Dendreon Pharmaceuticals LLC was the largest of 12 companies reporting payments in 2025, $1,644 in all, mostly food and beverage.
Overview
| NPI | 1861568750 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 24, 2006 |
| Last updated in NPPES | Apr 17, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | 2014018794 | MO |
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 - Medical Oncology (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 152 |
|---|---|
| Services billed | 16,285 across 87 procedure codes |
| Paid by Medicare | $439,161 |
Part D prescriptions in 2024
| Prescriptions (claims) | 794 · 953 30-day fills |
|---|---|
| Patients | 81 |
| Total drug cost | $296,620 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | University of Wisconsin School of Medicine |
|---|---|
| Graduation year | 2003 |
| Medicare specialty | Medical Oncology |
| Secondary specialties | Internal Medicine |
Medical group
- Washington UniversitySaint Louis, MO · 3,029 clinicians
Hospital affiliations
- Barnes Jewish HospitalSaint Louis, MO
- Barnes-Jewish West County HospitalCreve Coeur, MO
Industry payments (Open Payments)
- 2025$1,644 · 20 payments from 12 companies
- 2024$49,694 · 46 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Dendreon Pharmaceuticals LLC | $658.04 | 5 |
| Exelixis Inc. | $308.64 | 2 |
| Pfizer Inc. | $150.00 | 1 |
| Inspiremd Ltd | $142.85 | 1 |
| Novartis Pharmaceuticals Corporation | $118.89 | 2 |
What the 2025 payments were for
- Food and Beverage$1,644 · 20 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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