Natalie Jill Klar, M.D.
NPI 1013371392ActiveIndividual· Internal Medicine, Medical Oncology· New York, NY
Internal Medicine, Medical Oncology (M.D.) with New York University, practicing in New York, New York. Medicare paid $23,614 for services to 102 patients in 2024, and Part D covered 188 of their prescriptions (98% generic). Stemline Therapeutics Inc. was the largest of 2 companies reporting payments in 2025, $275.91 in all, mostly food and beverage. Lists NYU Langone Hospitals as a hospital affiliation.
Overview
| NPI | 1013371392 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 12, 2016 |
| Last updated in NPPES | Nov 4, 2022 |
| Certified by provider | Nov 4, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | 298727 | NY |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
| Internal Medicine, Hematology & Oncology | 207RH0003X | 298727 | 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 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Medical Oncology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 102 |
|---|---|
| Services billed | 267 across 12 procedure codes |
| Paid by Medicare | $23,614 |
Part D prescriptions in 2024
| Prescriptions (claims) | 188 · 493 30-day fills |
|---|---|
| Patients | 81 |
| Total drug cost | $5,708 |
| Generic share | 98% of claims |
Education and affiliations
| Graduation year | 2016 |
|---|---|
| Medicare specialty | Medical Oncology |
| Telehealth | Offers telehealth |
Medical group
- New York UniversityNew York, NY · 6,134 clinicians
Hospital affiliation
- NYU Langone HospitalsNew York, NY
Industry payments (Open Payments)
- 2025$275.91 · 2 payments from 2 companies
- 2024$289.58 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Stemline Therapeutics Inc. | $156.03 | 1 |
| Daiichi Sankyo Inc. | $119.88 | 1 |
What the 2025 payments were for
- Food and Beverage$275.91 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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