Barry Alan Firstenberg, DO
NPI 1215939764ActiveIndividual· Internal Medicine, Hematology & Oncology· Grapevine, TX
Internal Medicine, Hematology & Oncology (DO) in Grapevine, Texas, trained at At Still University of Health Sciences, College of Osteo Med, Kirksville (class of 1978). In 2024 Medicare paid $2,923,397 for 489 patients, and Part D covered 836 of their prescriptions, 68% of them generic. E.R. Squibb & Sons, L.L.C. was the largest of 34 companies reporting payments in 2025, $6,500 in all, mostly food and beverage.
Overview
| NPI | 1215939764 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Aug 15, 2005 |
| Last updated in NPPES | Nov 16, 2021 |
| Certified by provider | Nov 16, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | G6294 | 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 - Internal Medicine (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 489 |
|---|---|
| Services billed | 129,077 across 182 procedure codes |
| Paid by Medicare | $2,923,397 |
Part D prescriptions in 2024
| Prescriptions (claims) | 836 · 1,123 30-day fills |
|---|---|
| Patients | 138 |
| Total drug cost | $2,526,345 |
| Generic share | 68% of claims |
Education and affiliations
| Medical school | At Still University of Health Sciences, College of Osteo Med, Kirksville |
|---|---|
| Graduation year | 1978 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Texas Oncology PAPlano, TX · 1,014 clinicians
Hospital affiliations
- Baylor Scott & White Medical Center GrapevineGrapevine, TX
- Texas Health Harris Methodist Hurst-Euless-BedfordBedford, TX
Industry payments (Open Payments)
- 2025$6,500 · 103 payments from 34 companies
- 2024$1,641 · 69 payments from 32 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| E.R. Squibb & Sons, L.L.C. | $2,435 | 7 |
| Novartis Pharmaceuticals Corporation | $1,303 | 16 |
| Astrazeneca Pharmaceuticals LP | $276.23 | 7 |
| Janssen Biotech, Inc. | $250.53 | 6 |
| Genzyme Corporation | $219.30 | 4 |
What the 2025 payments were for
- Food and Beverage$2,988 · 89 payments
- Consulting Fee$2,300 · 1 payment
- Long term medical supply or device loan$1,196 · 12 payments
- Travel and Lodging$15.40 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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