Quick answers
- Which hospitals does Greg B. Marrinan work at?
- Medicare's official clinician data lists Greg B. Marrinan at 1 hospital: St Vincent's Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Greg B. Marrinan see patients?
- Medicare's clinician data lists 10 practice locations, including Fairfield, CT, Stamford, CT and Trumbull, CT. Call before your visit to confirm the address.
- What is Greg B. Marrinan's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does Greg B. Marrinan accept Medicare assignment?
- Yes. Medicare's clinician data says Greg B. Marrinan accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Greg B. Marrinan?
- (203) 384-3873, as listed in official Medicare / NPI Registry data.
- What is Greg B. Marrinan's NPI number?
- 1942295506. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Greg B. Marrinan works
Medicare's Facility Affiliation Data lists Greg B. Marrinan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- St Vincent's Medical CenterBridgeport, CT · Acute Care Hospital · CCN 070028
Practice locations
Addresses where Greg B. Marrinan is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 10; the Medicare profile lists all.
- 1055 Post RdFairfield, CT 06824 (203) 384‑3873
- 1259 E Main StStamford, CT 06902 (203) 337‑9729
- 15 Corporate DrTrumbull, CT 06611 (203) 384‑3873
- 267 Grant StBridgeport, CT 06610 (203) 384‑3000
- 2800 Main StBridgeport, CT 06606 (203) 576‑5067
Group practices
Medicare enrollment lists Greg B. Marrinan as a member of these groups (CMS data updated 2026-10-02).
- Bridgeport Radiological Associates LLC48 clinicians in the group
- Advanced Radiology Consultants LLC33 clinicians in the group
- Advanced Radiology Mri Centers LP22 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Fairfield
Clinicians with the same Medicare primary specialty in Fairfield, CT — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Albert Einstein College Of Medicine Of Yeshiva University |
| Graduation year | 1997 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1942295506 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians