John Sarantopoulos, M.D.
NPI 1861495343ActiveIndividual· Internal Medicine, Medical Oncology· San Antonio, TX
Internal Medicine, Medical Oncology (M.D.) with University of Texas Health Science Center at San Antonio, practicing in San Antonio, Texas. In 2024 Medicare paid $1,529,819 for 314 patients, and Part D covered 591 of their prescriptions, 80% of them generic. Pfizer Inc. was the largest of 8 companies reporting payments in 2025, $57,957 in all, mostly speaking and faculty fees. Lists University Health System and 1 other hospital as hospital affiliations.
Overview
| NPI | 1861495343 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 27, 2005 |
| Last updated in NPPES | Aug 18, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | L8940 | TX |
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 - Medical Oncology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 314 |
|---|---|
| Services billed | 52,593 across 118 procedure codes |
| Paid by Medicare | $1,529,819 |
Part D prescriptions in 2024
| Prescriptions (claims) | 591 · 636 30-day fills |
|---|---|
| Patients | 65 |
| Total drug cost | $1,995,556 |
| Generic share | 80% of claims |
Education and affiliations
| Graduation year | 1997 |
|---|---|
| Medicare specialty | Medical Oncology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- University of Texas Health Science Center at San AntonioSan Antonio, TX · 1,297 clinicians
Hospital affiliations
- University Health SystemSan Antonio, TX
- Ut Health San Antonio Multispecialty & Research HoSan Antonio, TX
Industry payments (Open Payments)
- 2025$57,957 · 67 payments from 8 companies
- 2024$90,135 · 121 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $33,685 | 33 |
| Exelixis Inc. | $17,135 | 24 |
| Regeneron Healthcare Solutions, Inc. | $6,231 | 5 |
| Array Biopharma Inc | $700.00 | 1 |
| Janssen Biotech, Inc. | $128.25 | 1 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$32,059 · 7 payments
- Compensation for serving as faculty or as a speaker for a medical education program$14,685 · 5 payments
- Travel and Lodging$8,405 · 35 payments
- Consulting Fee$1,780 · 2 payments
- Food and Beverage$1,013 · 17 payments
- Education$15.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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