Doctor profile · Federal record
Dr. Greg Marrinan, MD
Diagnostic Radiology Physician (CMS: Diagnostic Radiology) · Shelton, CT
- NPI 1942295506
- Accepts Medicare
- MIPS 67.9 / 100 · 2023
- 29 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1 Corporate Dr Ste 325
Shelton, CT 064846295
(203) 696-6125
fax (203) 337-9731
Credentials & registration
- NPI registered
- September 2005 — 21 yrs on file
- Profile last updated
- September 7, 2023
- Year of graduation
- 1997 — 29 yrs since
- Specialty taxonomy
- 2085R0202X — NUCC code
- State license (1)
- Connecticut #041344
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1942295506. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
15,257
Distinct HCPCS
10
Medicare allowed
$160,752
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
A9585 |
Injection, gadobutrol, 0.1 ml | 11,147 | 138 | $0 | |
Q9967 |
Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml | 2,345 | 26 | $0 | |
71045 |
X-ray of chest, 1 view | 439 | 383 | $9 | |
73721 |
Mri scan of leg joint without contrast | 125 | 122 | $220 | |
71046 |
X-ray of chest, 2 views | 109 | 107 | $11 | |
74183 |
Mri scan of abdomen before and after contrast | 103 | 103 | $376 | |
70450 |
Ct scan head or brain without contrast | 100 | 98 | $41 | |
74177 |
Ct scan of abdomen and pelvis with contrast | 68 | 67 | $90 | |
71046 |
X-ray of chest, 2 views | 67 | 67 | $25 | |
73700 |
Ct scan of leg without contrast | 59 | 56 | $49 |
In context: peer comparison
Among 11 peers in this city , average services per provider: 234. This provider delivers 65× the peer median.Frequently asked questions
What is Dr. Greg Marrinan's medical specialty?
Dr. Greg Marrinan practices Diagnostic Radiology Physician in Shelton, CT.
Where does Dr. Greg Marrinan practice?
Dr. Greg Marrinan practices at 1 Corporate Dr Ste 325, Shelton, CT 064846295. Office phone: 2036966125.
What is Dr. Greg Marrinan's NPI?
Dr. Greg Marrinan's National Provider Identifier (NPI) is 1942295506, issued by NPPES.
Does Dr. Greg Marrinan accept Medicare assignment?
Yes. Dr. Greg Marrinan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Greg Marrinan commonly perform?
Top Medicare-reported procedures in 2023: Injection, gadobutrol, 0.1 ml (HCPCS A9585); Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (HCPCS Q9967); X-ray of chest, 1 view (HCPCS 71045). Source: CMS Medicare Physician & Other Practitioners file.