Diane Klein-Ritter, M.D.
NPI 1053346767ActiveIndividual· Internal Medicine· East Setauket, NY
Internal Medicine (M.D.) in East Setauket, New York, trained at New York University School of Medicine (class of 1991). Their prescriptions cost Medicare Part D more than their services did: $378,005 for 3,435 claims, against $119,435 paid for services in 2024.
Overview
| NPI | 1053346767 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 11, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 192119 | 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 | 322 |
|---|---|
| Services billed | 1,665 across 42 procedure codes |
| Paid by Medicare | $119,435 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,435 · 8,461 30-day fills |
|---|---|
| Patients | 356 |
| Total drug cost | $378,005 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | New York University School of Medicine |
|---|---|
| Graduation year | 1991 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Stony Brook Internists University Faculty Practice CorporationStony Brook, NY · 428 clinicians
Hospital affiliations
- John T Mather Memorial Hospital of Port JeffersonPort Jefferson, NY
- Suny/Stony Brook University HospitalStony Brook, NY
Other facilities
- Catholic Home CareHome health agency · Farmingdale, NY
- Centerwell Home HealthHome health agency · Hauppauge, NY
- Tender Loving Care, An Amedisys CompanyHome health agency · Medford, NY
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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All 30 internal medicine physicians in East Setauket · All internal medicine physicians in New York