Joseph Chapman, DO
NPI 1619369576ActiveIndividual· Internal Medicine, Gastroenterology· Lancaster, PA
Internal Medicine, Gastroenterology (DO) in Lancaster, Pennsylvania, trained at Edward Via Col of Osteo Medicine-Virginia Campus (class of 2015). Their prescriptions cost Medicare Part D more than their services did: $310,472 for 859 claims, against $202,672 paid for services in 2024. Abbvie Inc. was the largest of 19 companies reporting payments in 2025, $1,430 in all, mostly food and beverage.
Overview
| NPI | 1619369576 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Mar 2, 2015 |
| Last updated in NPPES | Feb 10, 2026 |
| Certified by provider | Feb 10, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | OS021482 | PA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 429 |
|---|---|
| Services billed | 8,573 across 64 procedure codes |
| Paid by Medicare | $202,672 |
Part D prescriptions in 2024
| Prescriptions (claims) | 859 · 1,656 30-day fills |
|---|---|
| Patients | 246 |
| Total drug cost | $310,472 |
| Generic share | 81% of claims |
Education and affiliations
| Medical school | Edward Via Col of Osteo Medicine-Virginia Campus |
|---|---|
| Graduation year | 2015 |
| Medicare specialty | Gastroenterology |
Medical groups
- Lancaster General HospitalLancaster, PA · 520 clinicians
- Regional Gastroenterology Associates of Lancaster, Ltd.Lancaster, PA · 244 clinicians
Hospital affiliations
- Lancaster General HospitalLancaster, PA
- Penn State Health Lancaster Medical CenterLancaster, PA
- Upmc LititzLititz, PA
- Wellspan Ephrata Community HospitalEphrata, PA
Industry payments (Open Payments)
- 2025$1,430 · 66 payments from 19 companies
- 2024$1,378 · 74 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $263.74 | 12 |
| Takeda Pharmaceuticals U.S.A., Inc. | $227.73 | 10 |
| Celltrion USA Inc. | $107.55 | 5 |
| Regeneron Healthcare Solutions, Inc. | $105.02 | 4 |
| Janssen Biotech, Inc. | $100.85 | 4 |
What the 2025 payments were for
- Food and Beverage$1,430 · 66 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Gastroenterology providers in Lancaster
- 1902888696
- 1205691912
- 1154422806
- 1043670805
- 1033231907
- 1689775413
- 1447354410
- 1053318600
- 1245415553
- 1003182114
- 1326138884
- 1932632270
All Internal Medicine, Gastroenterology providers in Pennsylvania →