David M. Charytan, MD
NPI 1649261264ActiveIndividual· Internal Medicine, Nephrology· New York, NY
Internal Medicine, Nephrology (MD) in New York, New York, trained at New York University School of Medicine (class of 1998). Their prescriptions cost Medicare Part D more than their services did: $421,272 for 405 claims, against $26,503 paid for services in 2024. Fresenius USA Marketing, Inc. was the largest of 4 companies reporting payments in 2025, $13,008 in all, mostly consulting fees.
Overview
| NPI | 1649261264 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 2, 2005 |
| Last updated in NPPES | Mar 5, 2021 |
| Certified by provider | Mar 5, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 209655 | MA |
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 - Nephrology (MA); Practitioner - Nephrology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 123 |
|---|---|
| Services billed | 378 across 22 procedure codes |
| Paid by Medicare | $26,503 |
Part D prescriptions in 2024
| Prescriptions (claims) | 405 · 951 30-day fills |
|---|---|
| Patients | 58 |
| Total drug cost | $421,272 |
| Generic share | 58% of claims |
Education and affiliations
| Medical school | New York University School of Medicine |
|---|---|
| Graduation year | 1998 |
| Medicare specialty | Nephrology |
| 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$13,008 · 8 payments from 4 companies
- 2024$2,000 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Fresenius USA Marketing, Inc. | $4,662 | 4 |
| Astrazeneca Ab | $4,199 | 1 |
| Csl Behring | $4,000 | 2 |
| Otsuka America Pharmaceutical, Inc. | $147.47 | 1 |
What the 2025 payments were for
- Consulting Fee$11,399 · 4 payments
- Travel and Lodging$1,029 · 2 payments
- Food and Beverage$580.49 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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