John F. Dipersio, MD
NPI 1730106295ActiveIndividual· Internal Medicine, Medical Oncology· Saint Louis, MO
Internal Medicine, Medical Oncology (MD) in Saint Louis, Missouri, trained at University of Rochester School of Medicine and Dentistry (class of 1980). Their prescriptions cost Medicare Part D more than their services did: $5,211,073 for 1,818 claims, against $860,081 paid for services in 2024. Geron Corporation was the largest of 3 companies reporting payments in 2025, $6,098 in all, mostly consulting fees.
Overview
| NPI | 1730106295 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 17, 2006 |
| Last updated in NPPES | Apr 17, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | 105204 | 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 | 346 |
|---|---|
| Services billed | 37,097 across 113 procedure codes |
| Paid by Medicare | $860,081 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,818 · 2,421 30-day fills |
|---|---|
| Patients | 150 |
| Total drug cost | $5,211,073 |
| Generic share | 77% of claims |
Education and affiliations
| Medical school | University of Rochester School of Medicine and Dentistry |
|---|---|
| Graduation year | 1980 |
| Medicare specialty | Medical Oncology |
| Secondary specialties | Hematology/Oncology, Internal Medicine |
Medical group
- Washington UniversitySaint Louis, MO · 3,029 clinicians
Hospital affiliations
- Barnes Jewish HospitalSaint Louis, MO
- Barnes-Jewish St Peters HospitalSaint Peters, MO
- Barnes-Jewish West County HospitalCreve Coeur, MO
- Christian Hospital NortheastSaint Louis, MO
Industry payments (Open Payments)
- 2025$6,098 · 8 payments from 3 companies
- 2024$303.64 · 7 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Geron Corporation | $3,380 | 4 |
| Janssen Scientific Affairs, LLC | $2,664 | 3 |
| Pfizer Inc. | $54.04 | 1 |
What the 2025 payments were for
- Consulting Fee$5,428 · 2 payments
- Travel and Lodging$363.38 · 1 payment
- Food and Beverage$306.72 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 112 medical oncologists in Saint Louis · All medical oncologists in Missouri