Brian A. Markoff, MD
NPI 1083646111ActiveIndividual· Hospitalist· New York, NY
Hospitalist (MD) in New York, New York, trained at University of California, San Francisco School of Medicine (class of 1994). Mostly services rather than prescriptions: Medicare paid $18,037 for 88 patients in 2024, with only 15 Part D claims. Merck Sharp & Dohme LLC was the largest of 3 companies reporting payments in 2025, $294.14 in all, mostly food and beverage.
Overview
| NPI | 1083646111 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 7, 2006 |
| Last updated in NPPES | Apr 7, 2026 |
| Certified by provider | Apr 7, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Hospitalist Primary | 208M00000X | 225586 | 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 - Internal Medicine (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 88 |
|---|---|
| Services billed | 193 across 7 procedure codes |
| Paid by Medicare | $18,037 |
Part D prescriptions in 2024
| Prescriptions (claims) | 15 · 21 30-day fills |
|---|---|
| Total drug cost | $3,474 |
Education and affiliations
| Medical school | University of California, San Francisco School of Medicine |
|---|---|
| Graduation year | 1994 |
| Medicare specialty | Internal Medicine |
Medical group
- Icahn School of Medicine at Mount SinaiNew York, NY · 2,843 clinicians
Hospital affiliation
- Mount Sinai WestNew York, NY
Industry payments (Open Payments)
- 2025$294.14 · 10 payments from 3 companies
- 2024$153.91 · 5 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $178.25 | 6 |
| Csl Behring | $90.95 | 3 |
| E.R. Squibb & Sons, L.L.C. | $24.94 | 1 |
What the 2025 payments were for
- Food and Beverage$294.14 · 10 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 597 hospitalists in New York · All hospitalists in New York