Gregory David Gersten, MD
NPI 1487688214ActiveIndividual· Radiology, Diagnostic Radiology· Southbury, CT
Radiology, Diagnostic Radiology (MD) in Southbury, Connecticut, trained at Columbia University College of Physicians and Surgeons (class of 1990). In 2024 Medicare paid $80,649 for 902 patients, and Part D covered 78 of their prescriptions, 87% of them generic. Penumbra, Inc. was the largest of 7 companies reporting payments in 2025, $1,546 in all, mostly food and beverage.
Overview
| NPI | 1487688214 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 10, 2006 |
| Last updated in NPPES | Aug 7, 2026 |
| Certified by provider | Aug 7, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Diagnostic Radiology Primary | 2085R0202X | 036955 | CT |
| Radiology, Body Imaging | 2085B0100X | 036955 | CT |
| Radiology, Diagnostic Radiology | 2085R0202X | 4271297 | ID |
| Radiology, Vascular & Interventional Radiology | 2085R0204X | 036955 | CT |
| Radiology, Diagnostic Radiology | 2085R0202X | 24716 | ND |
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 - Diagnostic Radiology (CT); Practitioner - Interventional Radiology (GA); Practitioner - Diagnostic Radiology (ID); Practitioner - Diagnostic Radiology (MI); Practitioner - Diagnostic Radiology (ND); Practitioner - Diagnostic Radiology (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 902 |
|---|---|
| Services billed | 3,921 across 157 procedure codes |
| Paid by Medicare | $80,649 |
Part D prescriptions in 2024
| Prescriptions (claims) | 78 · 196 30-day fills |
|---|---|
| Patients | 24 |
| Total drug cost | $7,788 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | Columbia University College of Physicians and Surgeons |
|---|---|
| Graduation year | 1990 |
| Medicare specialty | Diagnostic Radiology |
Medical groups
- Saint Alphonsus Regional Medical Center IncBoise, ID · 680 clinicians
- Phoebe Physician Group IncAmericus, GA · 430 clinicians
- Dlp Marquette Physician Practices IncMarquette, MI · 197 clinicians
Hospital affiliations
- Essentia HealthFargo, ND
- Phoebe Putney Memorial HospitalAlbany, GA
- Saint Alphonsus Medical Center - NampaNampa, ID
- Saint Alphonsus Regional Medical CenterBoise, ID
- Uphs Marquette Dlp HospitalMarquette, MI
Industry payments (Open Payments)
- 2025$1,546 · 14 payments from 7 companies
- 2024$3,971 · 52 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Penumbra, Inc. | $584.18 | 4 |
| Boston Scientific Corporation | $470.52 | 4 |
| W. L. Gore & Associates, Inc. | $170.65 | 2 |
| Teleflex LLC | $119.21 | 1 |
| Aerin Medical Inc. | $86.85 | 1 |
What the 2025 payments were for
- Food and Beverage$1,546 · 14 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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