Richard A. Geisman, M.D.
NPI 1265430516ActiveIndividual· Internal Medicine, Gastroenterology· Saint Peters, MO
Internal Medicine, Gastroenterology (M.D.) in Saint Peters, Missouri, trained at Tulane University School of Medicine (class of 1983). Their prescriptions cost Medicare Part D more than their services did: $827,089 for 4,097 claims, against $121,609 paid for services in 2024. Janssen Biotech, Inc. reported $178.80 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1265430516 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 11, 2005 |
| Last updated in NPPES | Dec 15, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | R8E89 | MO |
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 - Gastroenterology (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 650 |
|---|---|
| Services billed | 1,443 across 41 procedure codes |
| Paid by Medicare | $121,609 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,097 · 8,471 30-day fills |
|---|---|
| Patients | 1,247 |
| Total drug cost | $827,089 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | Tulane University School of Medicine |
|---|---|
| Graduation year | 1983 |
| Medicare specialty | Gastroenterology |
Medical group
- Ssm Medical Group IncSaint Charles, MO · 568 clinicians
Hospital affiliations
- Barnes Jewish HospitalSaint Louis, MO
- Barnes-Jewish St Peters HospitalSaint Peters, MO
- Ssm Health Saint Louis University HospitalSaint Louis, MO
- Ssm St Joseph Health CenterSaint Charles, MO
- Ssm St Joseph Hospital WestLake Saint Louis, MO
Industry payments (Open Payments)
- 2025$178.80 · 2 payments from 1 company
- 2024$251.60 · 7 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $178.80 | 2 |
What the 2025 payments were for
- Food and Beverage$94.80 · 1 payment
- Education$84.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All Internal Medicine, Gastroenterology providers in Missouri →