Janson Jacob, MD
NPI 1629638614ActiveIndividual· Internal Medicine, Gastroenterology· Malvern, PA
Internal Medicine, Gastroenterology (MD) in Malvern, Pennsylvania, trained at Pennsylvania State University College of Medicine (class of 2019). Part D covered 56 prescriptions written in 2024, 86% of them generic. Madrigal Pharmaceuticals was the largest of 12 companies reporting payments in 2025, $621.40 in all, mostly food and beverage.
Overview
| NPI | 1629638614 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 20, 2019 |
| Last updated in NPPES | Jun 12, 2025 |
| Certified by provider | Jun 12, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | MT225674 | PA |
| Student in an Organized Health Care Education/Training Program | 390200000X | 4351044320 | MI |
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 - Internal Medicine (PA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 56 · 91 30-day fills |
|---|---|
| Patients | 28 |
| Total drug cost | $75,340 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | Pennsylvania State University College of Medicine |
|---|---|
| Graduation year | 2019 |
| Medicare specialty | Internal Medicine |
Medical group
- Regional Gastroenterology Associates of Lancaster, Ltd.Lancaster, PA · 244 clinicians
Hospital affiliations
- Bryn Mawr HospitalBryn Mawr, PA
- Main Line Hospital LankenauWynnewood, PA
- Paoli HospitalPaoli, PA
- Riddle Memorial HospitalMedia, PA
Industry payments (Open Payments)
- 2025$621.40 · 25 payments from 12 companies
- 2024$234.09 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Madrigal Pharmaceuticals | $142.36 | 5 |
| Janssen Biotech, Inc. | $114.59 | 4 |
| Novo Nordisk Inc | $71.14 | 3 |
| Takeda Pharmaceuticals U.S.A., Inc. | $68.12 | 3 |
| Qol Medical, LLC | $61.29 | 2 |
What the 2025 payments were for
- Food and Beverage$621.40 · 25 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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