Theodore G. Gabig, M.D.
NPI 1538194360ActiveIndividual· Internal Medicine, Hematology & Oncology· Stony Brook, NY
Internal Medicine, Hematology & Oncology (M.D.) in Stony Brook, New York, trained at Loyola University of Chicago, Stritch School of Medicine (class of 1973). Mostly services rather than prescriptions: Medicare paid $86,842 for 289 patients in 2024, with only 47 Part D claims. Astellas Pharma US Inc was the largest of 3 companies reporting payments in 2025, $84.33 in all, mostly food and beverage.
Overview
| NPI | 1538194360 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 11, 2006 |
| Last updated in NPPES | Jun 19, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 224920 | NY |
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 - Hematology/Oncology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 289 |
|---|---|
| Services billed | 722 across 17 procedure codes |
| Paid by Medicare | $86,842 |
Part D prescriptions in 2024
| Prescriptions (claims) | 47 · 51 30-day fills |
|---|---|
| Patients | 20 |
| Total drug cost | $104,616 |
| Generic share | 51% of claims |
Education and affiliations
| Medical school | Loyola University of Chicago, Stritch School of Medicine |
|---|---|
| Graduation year | 1973 |
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical group
- Stony Brook Internists University Faculty Practice CorporationStony Brook, NY · 428 clinicians
Hospital affiliation
- Suny/Stony Brook University HospitalStony Brook, NY
Industry payments (Open Payments)
- 2025$84.33 · 3 payments from 3 companies
- 2024$56.17 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astellas Pharma US Inc | $34.23 | 1 |
| Springworks Therapeutics, Inc. | $26.84 | 1 |
| Daiichi Sankyo Inc. | $23.26 | 1 |
What the 2025 payments were for
- Food and Beverage$84.33 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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