Stephen G. Sisselman, DO
NPI 1609948884ActiveIndividual· Internal Medicine· Massapequa, NY
Internal Medicine (DO) in Massapequa, New York, trained at New York College of Osteo Medicine of New York Institute of Technology (class of 1996). Their prescriptions cost Medicare Part D more than their services did: $413,565 for 3,583 claims, against $227,384 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 17 companies reporting payments in 2025, $1,382 in all, mostly food and beverage.
Overview
| NPI | 1609948884 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Nov 14, 2006 |
| Last updated in NPPES | Oct 12, 2022 |
| Certified by provider | Oct 12, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 216161 | 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 | 472 |
|---|---|
| Services billed | 4,061 across 50 procedure codes |
| Paid by Medicare | $227,384 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,583 · 9,401 30-day fills |
|---|---|
| Patients | 484 |
| Total drug cost | $413,565 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | New York College of Osteo Medicine of New York Institute of Technology |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Sisselman Medical Group PCMassapequa, NY · 5 clinicians
Industry payments (Open Payments)
- 2025$1,382 · 90 payments from 17 companies
- 2024$1,815 · 93 payments from 23 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $484.14 | 43 |
| Amgen Inc. | $212.61 | 16 |
| Novo Nordisk Inc | $137.88 | 7 |
| Pfizer Inc. | $115.39 | 5 |
| Xeris Pharmaceuticals, Inc. | $60.50 | 3 |
What the 2025 payments were for
- Food and Beverage$1,382 · 90 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 41 internal medicine physicians in Massapequa · All internal medicine physicians in New York