John D. Long, MD
NPI 1386619393ActiveIndividual· Internal Medicine, Gastroenterology· Williamsburg, VA
Internal Medicine, Gastroenterology (MD) in Williamsburg, Virginia, trained at Eastern Virginia Medical School (class of 1989). In 2024 Medicare paid $110,195 for 750 patients, and Part D covered 348 of their prescriptions, 84% of them generic. Janssen Biotech, Inc. was the largest of 8 companies reporting payments in 2025, $1,421 in all, mostly food and beverage.
Overview
| NPI | 1386619393 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Feb 22, 2006 |
| Last updated in NPPES | Dec 19, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 0101234912 | VA |
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 - Gastroenterology (VA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 750 |
|---|---|
| Services billed | 897 across 27 procedure codes |
| Paid by Medicare | $110,195 |
Part D prescriptions in 2024
| Prescriptions (claims) | 348 · 548 30-day fills |
|---|---|
| Patients | 121 |
| Total drug cost | $27,210 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | Eastern Virginia Medical School |
|---|---|
| Graduation year | 1989 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical groups
- Riverside Physician Services IncWilliamsburg, VA · 797 clinicians
- Clinch Professional Physician Services LLCCedar Bluff, VA · 43 clinicians
Hospital affiliations
- Clinch Valley Medical CenterRichlands, VA
- Riverside Doctors' Hospital of WilliamsburgWilliamsburg, VA
- Riverside Regional Medical CenterNewport News, VA
- Riverside Walter Reed HospitalGloucester, VA
Industry payments (Open Payments)
- 2025$1,421 · 50 payments from 8 companies
- 2024$811.52 · 28 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $465.90 | 14 |
| Takeda Pharmaceuticals U.S.A., Inc. | $307.98 | 14 |
| Ardelyx, Inc. | $197.67 | 6 |
| Abbvie Inc. | $197.59 | 6 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $129.75 | 6 |
What the 2025 payments were for
- Food and Beverage$1,322 · 49 payments
- Education$99.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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