Jack Geffken, D.O.
NPI 1053310268ActiveIndividual· Internal Medicine· Bethpage, NY
Internal Medicine (D.O.) in Bethpage, New York, trained at New York College of Osteo Medicine of New York Institute of Technology (class of 1991). Their prescriptions cost Medicare Part D more than their services did: $928,733 for 8,062 claims, against $177,867 paid for services in 2024. Dexcom, Inc. was the largest of 5 companies reporting payments in 2025, $151.80 in all, mostly food and beverage.
Overview
| NPI | 1053310268 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Jul 19, 2005 |
| Last updated in NPPES | Feb 24, 2021 |
| Certified by provider | Feb 24, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 1894000 | 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 | 541 |
|---|---|
| Services billed | 3,316 across 40 procedure codes |
| Paid by Medicare | $177,867 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,062 · 18,009 30-day fills |
|---|---|
| Patients | 616 |
| Total drug cost | $928,733 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | New York College of Osteo Medicine of New York Institute of Technology |
|---|---|
| Graduation year | 1991 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- New York UniversityNew York, NY · 6,134 clinicians
Hospital affiliation
- NYU Langone HospitalsNew York, NY
Other facilities
- Catholic Home CareHome health agency · Farmingdale, NY
- North Shore Home Care ChhaHome health agency · Westbury, NY
- NYU Langone Home Health CareHome health agency · Garden City, NY
Industry payments (Open Payments)
- 2025$151.80 · 7 payments from 5 companies
- 2024$62.44 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Dexcom, Inc. | $49.08 | 2 |
| Novo Nordisk Inc | $37.03 | 2 |
| Tandem Diabetes Care, Inc. | $25.00 | 1 |
| Amneal Pharmaceuticals LLC | $22.54 | 1 |
| Lilly USA, LLC | $18.15 | 1 |
What the 2025 payments were for
- Food and Beverage$151.80 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 28 internal medicine physicians in Bethpage · All internal medicine physicians in New York