Nathan Shumway, D.O., FACP
NPI 1285616359ActiveIndividual· Internal Medicine, Hematology & Oncology· San Antonio, TX
Internal Medicine, Hematology & Oncology (D.O., FACP) in San Antonio, Texas, trained at Western University of Health Sciences College of Dental Med (class of 2002). Their prescriptions cost Medicare Part D more than their services did: $2,092,981 for 689 claims, against $1,380,816 paid for services in 2024. E.R. Squibb & Sons, L.L.C. was the largest of 7 companies reporting payments in 2025, $527.47 in all, mostly food and beverage.
Overview
| NPI | 1285616359 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O., FACP |
| Sole proprietor | No |
| NPI issued | Nov 15, 2005 |
| Last updated in NPPES | Jan 28, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | P2528 | TX |
| Internal Medicine, Medical Oncology | 207RX0202X | DOS-1014 | HI |
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 - Hematology/Oncology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 586 |
|---|---|
| Services billed | 95,954 across 143 procedure codes |
| Paid by Medicare | $1,380,816 |
Part D prescriptions in 2024
| Prescriptions (claims) | 689 · 1,065 30-day fills |
|---|---|
| Patients | 140 |
| Total drug cost | $2,092,981 |
| Generic share | 69% of claims |
Education and affiliations
| Medical school | Western University of Health Sciences College of Dental Med |
|---|---|
| Graduation year | 2002 |
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Internal Medicine, Medical Oncology |
| Telehealth | Offers telehealth |
Medical group
- Texas Oncology PAPlano, TX · 1,014 clinicians
Hospital affiliations
- Baptist Medical CenterSan Antonio, TX
- Methodist Hospital Stone OakSan Antonio, TX
Industry payments (Open Payments)
- 2025$527.47 · 8 payments from 7 companies
- 2024$2,686 · 12 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| E.R. Squibb & Sons, L.L.C. | $154.91 | 2 |
| Regeneron Healthcare Solutions, Inc. | $124.27 | 1 |
| Immunocore Limited | $112.38 | 1 |
| Johnson & Johnson Health Care Systems Inc. | $38.40 | 1 |
| Sobi, Inc | $38.21 | 1 |
What the 2025 payments were for
- Food and Beverage$496.82 · 7 payments
- Education$30.65 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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