Niranjan Gunasekaran, D.O.
NPI 1598108185ActiveIndividual· Internal Medicine, Nephrology· Bethpage, NY
Internal Medicine, Nephrology (D.O.) in Bethpage, New York, trained at Philadelphia College of Osteopathic Medicine (class of 2013). Their prescriptions cost Medicare Part D more than their services did: $794,299 for 1,930 claims, against $436,868 paid for services in 2024. Amgen Inc. was the largest of 20 companies reporting payments in 2025, $1,672 in all, mostly food and beverage.
Overview
| NPI | 1598108185 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | Yes |
| NPI issued | Apr 12, 2013 |
| Last updated in NPPES | Jan 14, 2020 |
| Certified by provider | Jan 14, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 286211 | NY |
| Internal Medicine | 207R00000X | OS14133 | FL |
| Hospitalist | 208M00000X | 143357 | IL |
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 (MO); Practitioner - Nephrology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,171 |
|---|---|
| Services billed | 4,625 across 27 procedure codes |
| Paid by Medicare | $436,868 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,930 · 4,171 30-day fills |
|---|---|
| Patients | 303 |
| Total drug cost | $794,299 |
| Generic share | 83% of claims |
Education and affiliations
| Medical school | Philadelphia College of Osteopathic Medicine |
|---|---|
| Graduation year | 2013 |
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Long Island Kidney Associates, PCBethpage, NY · 4 clinicians
Hospital affiliations
- Chsli St Joseph HospitalBethpage, NY
- Good Samaritan Hospital Medical CenterWest Islip, NY
- Plainview HospitalPlainview, NY
- St Francis Hospital - the Heart CenterRoslyn, NY
Other facilities
- Davita Long Island Renal CareDialysis facility · Amityville, NY
- Dialyze Direct Brooklyn, NyDialysis facility · Brooklyn, NY
- Fresenius Kidney Care - Bay ShoreDialysis facility · Bay Shore, NY
- Fresenius Kidney Care LindenhurstDialysis facility · Lindenhurst, NY
Industry payments (Open Payments)
- 2025$1,672 · 68 payments from 20 companies
- 2024$993.37 · 38 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $231.16 | 12 |
| Astrazeneca Pharmaceuticals LP | $175.96 | 9 |
| Vifor Pharma, Inc. | $124.75 | 1 |
| Novo Nordisk Inc | $121.95 | 5 |
| Ani Pharmaceuticals, Inc. | $121.95 | 4 |
What the 2025 payments were for
- Food and Beverage$1,654 · 67 payments
- Education$18.85 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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