Hillary Diamond, M.D.
NPI 1902967011ActiveIndividual· Internal Medicine, Geriatric Medicine· Northport, NY
Internal Medicine, Geriatric Medicine (M.D.) in Northport, New York, trained at State University of New York at Stony Brook, School of Medicine (class of 1992). Their prescriptions cost Medicare Part D more than their services did: $536,537 for 5,246 claims, against $25,774 paid for services in 2024.
Overview
| NPI | 1902967011 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Dec 12, 2006 |
| Last updated in NPPES | Jun 1, 2020 |
| Certified by provider | Jun 1, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Geriatric Medicine Primary | 207RG0300X | 196450 | NY |
| Internal Medicine | 207R00000X | 196450 | 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 - Internal Medicine (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 80 |
|---|---|
| Services billed | 359 across 21 procedure codes |
| Paid by Medicare | $25,774 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,246 · 12,703 30-day fills |
|---|---|
| Patients | 479 |
| Total drug cost | $536,537 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | State University of New York at Stony Brook, School of Medicine |
|---|---|
| Graduation year | 1992 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Geriatric Medicine |
Medical group
- Advantagecare Physicians PCStaten Island, NY · 303 clinicians
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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