Thomas A. John, MD
NPI 1497837033ActiveIndividual· Internal Medicine, Gastroenterology· Zephyrhills, FL
Internal Medicine, Gastroenterology (MD) in Zephyrhills, Florida, trained at University of South Florida College of Medicine (class of 2003). Their prescriptions cost Medicare Part D more than their services did: $440,302 for 1,354 claims, against $71,320 paid for services in 2024. Abbvie Inc. was the largest of 17 companies reporting payments in 2025, $1,130 in all, mostly food and beverage.
Overview
| NPI | 1497837033 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Oct 20, 2006 |
| Last updated in NPPES | Aug 19, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | ME95221 | FL |
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 (FL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 303 |
|---|---|
| Services billed | 744 across 36 procedure codes |
| Paid by Medicare | $71,320 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,354 · 2,057 30-day fills |
|---|---|
| Patients | 306 |
| Total drug cost | $440,302 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | University of South Florida College of Medicine |
|---|---|
| Graduation year | 2003 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical group
- Florida Hospital Physician Group IncTampa, FL · 979 clinicians
Hospital affiliations
- Adventhealth Dade CityDade City, FL
- Adventhealth TampaTampa, FL
- Adventhealth ZephyrhillsZephyrhills, FL
Industry payments (Open Payments)
- 2025$1,130 · 39 payments from 17 companies
- 2024$664.32 · 35 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $344.14 | 18 |
| Stryker Corporation | $169.53 | 1 |
| Enterra Medical, Inc. | $127.91 | 1 |
| Ferring Pharmaceuticals Inc. | $109.75 | 5 |
| Madrigal Pharmaceuticals | $105.24 | 1 |
What the 2025 payments were for
- Food and Beverage$1,130 · 39 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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