Michael Klein, MD
NPI 1508866757ActiveIndividual· Internal Medicine, Nephrology· Hawthorne, NY
Internal Medicine, Nephrology (MD) in Hawthorne, New York, trained at R Franklin University of Med & Sci/Chicago Medical School (class of 1993). 370 Medicare patients in 2024, $146,111 paid; nearly all of their 1,017 Part D prescriptions were generic (90%). Vantive US Healthcare LLC was the largest of 2 companies reporting payments in 2025, $183.60 in all, mostly food and beverage.
Overview
| NPI | 1508866757 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 29, 2005 |
| Last updated in NPPES | Mar 6, 2023 |
| Certified by provider | Mar 6, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 203273 | 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 - Nephrology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 370 |
|---|---|
| Services billed | 1,139 across 21 procedure codes |
| Paid by Medicare | $146,111 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,017 · 2,589 30-day fills |
|---|---|
| Patients | 159 |
| Total drug cost | $148,131 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | R Franklin University of Med & Sci/Chicago Medical School |
|---|---|
| Graduation year | 1993 |
| Medicare specialty | Nephrology |
| Telehealth | Offers telehealth |
Medical group
- Westchester Medical Center Advanced Physician Services PCValhalla, NY · 897 clinicians
Hospital affiliations
- Greenwich Hospital Association -Greenwich, CT
- Westchester Medical CenterValhalla, NY
- White Plains Hospital CenterWhite Plains, NY
Other facilities
- Dialysis Clinic Inc, HawthorneDialysis facility · Hawthorne, NY
- Westchester Artificial Kidney CenterDialysis facility · Elmsford, NY
Industry payments (Open Payments)
- 2025$183.60 · 2 payments from 2 companies
- 2024$126.87 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Vantive US Healthcare LLC | $144.66 | 1 |
| Mallinckrodt Hospital Products Inc. | $38.94 | 1 |
What the 2025 payments were for
- Food and Beverage$183.60 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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