Gregory S. Alexander, MD
NPI 1588157895ActiveIndividual· Radiology, Radiation Oncology· Sewell, NJ
Radiology, Radiation Oncology (MD) in Sewell, New Jersey, trained at Jefferson Medical College of Thomas Jefferson University (class of 2018). Mostly services rather than prescriptions: Medicare paid $42,618 for 103 patients in 2024, with only 39 Part D claims. Teleflex LLC was the largest of 2 companies reporting payments in 2025, $130.14 in all, mostly food and beverage.
Overview
| NPI | 1588157895 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 11, 2018 |
| Last updated in NPPES | Jun 15, 2023 |
| Certified by provider | Feb 15, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Radiation Oncology Primary | 2085R0001X | 25MA11912600 | NJ |
| Internal Medicine | 207R00000X | MT-216131 | PA |
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 - Radiation Oncology (NJ); Practitioner - Radiation Oncology (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 103 |
|---|---|
| Services billed | 609 across 30 procedure codes |
| Paid by Medicare | $42,618 |
Part D prescriptions in 2024
| Prescriptions (claims) | 39 · 44 30-day fills |
|---|---|
| Patients | 20 |
| Total drug cost | $940.83 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | Jefferson Medical College of Thomas Jefferson University |
|---|---|
| Graduation year | 2018 |
| Medicare specialty | Radiation Oncology |
| Telehealth | Offers telehealth |
Medical groups
- Jefferson University PhysiciansPhiladelphia, PA · 1,531 clinicians
- Kennedy Medical Group Practice, P.C.Stratford, NJ · 418 clinicians
Hospital affiliations
- Jefferson Stratford HospitalStratford, NJ
- Thomas Jefferson University HospitalPhiladelphia, PA
Industry payments (Open Payments)
- 2025$130.14 · 2 payments from 2 companies
- 2024$196.12 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Teleflex LLC | $114.51 | 1 |
| Siemens Medical Solutions USA, Inc. | $15.63 | 1 |
What the 2025 payments were for
- Food and Beverage$130.14 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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