Jacob Isaac Warman, MD
NPI 1144336116ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Brooklyn, NY
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) in Brooklyn, New York, trained at State University of New York Downstate Medical Center (class of 1973). Their prescriptions cost Medicare Part D more than their services did: $620,060 for 1,700 claims, against $80,453 paid for services in 2024. Bayer Healthcare Pharmaceuticals Inc. was the largest of 8 companies reporting payments in 2025, $270.12 in all, mostly food and beverage.
Overview
| NPI | 1144336116 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 22, 2006 |
| Last updated in NPPES | Jul 9, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 122805 1 | NY |
| Internal Medicine, Endocrinology, Diabetes & Metabolism | 207RE0101X | 122805 | NY |
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 - Endocrinology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 233 |
|---|---|
| Services billed | 961 across 11 procedure codes |
| Paid by Medicare | $80,453 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,700 · 2,902 30-day fills |
|---|---|
| Patients | 248 |
| Total drug cost | $620,060 |
| Generic share | 45% of claims |
Education and affiliations
| Medical school | State University of New York Downstate Medical Center |
|---|---|
| Graduation year | 1973 |
| Medicare specialty | Endocrinology |
Hospital affiliation
- Brooklyn Hospital Center - Downtown CampusBrooklyn, NY
Industry payments (Open Payments)
- 2025$270.12 · 12 payments from 8 companies
- 2024$22.15 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bayer Healthcare Pharmaceuticals Inc. | $58.00 | 2 |
| Medtronic, Inc. | $55.01 | 2 |
| Xeris Pharmaceuticals, Inc. | $38.33 | 2 |
| Ascendis Pharma Endocrinology Inc | $33.23 | 2 |
| Exact Sciences Corporation | $26.29 | 1 |
What the 2025 payments were for
- Food and Beverage$270.12 · 12 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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