Mark S Ridlen, MD
Mark S Ridlen is a Diagnostic Radiology Physician provider (Radiology) practicing in Warwick, RI, registered in the NPPES registry with NPI 1245228121 since 2005. The credential MD stands for Doctor of Medicine. Practices at Rhode Island Medical Imaging Inc (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1245228121 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Mark S Ridlen |
| Credential | MD |
| Sex | Male |
| Practice address | 125 METRO CENTER BLVD STE 2000, Warwick, RI, 02886 |
| Phone | 4014322520 |
| Fax | 4014538220 |
| Enumeration date | 2005-10-13 |
| Last updated in NPPES | 2019-03-18 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 2085R0202X | Diagnostic Radiology Physician | Secondary | 7132 | RI |
| 2085R0202X | Diagnostic Radiology Physician | Secondary | 154865 | MA |
| 2085R0202X | Diagnostic Radiology Physician | Primary | MD07132 | RI |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1600241 | Other | — | UNITED HEALTH PLANS |
| 7132 | Other | — | FEP BLUE CROSS |
| 007000613 | Other | — | HOSPITAL PIN |
| 007132 | Other | — | TUFTS |
| 2013789 | Medicaid | MA | — |
| 7000613 | Other | — | RIMEDICAL ASSISTANCE |
| 003117240 | Other | — | CT MED ASSISTANCE |
| 007132 | Other | — | BLUE SHIELD |
| 240156 | Other | — | W&I PILGRIM |
| 000000001988 | Other | — | NHPRI |
| 004372 | Other | — | BLUE CHIP |
| 300067430 | Other | — | RAILROAD MEDICARE |
| 240156 | Other | — | RIHPILGRIM |
| 720051701 | Other | — | CIGNA |
Copy-ready billing details
Provider: Mark Ridlen, MD NPI: 1245228121 Taxonomy: 2085R0202X (Diagnostic Radiology Physician) Address: 125 METRO CENTER BLVD STE 2000, Warwick, RI, 02886
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1356344089 | Vincent Decesaris | Individual | Diagnostic Radiology Physician | Warwick, RI |
| 1528056496 | John Pezzullo | Individual | Diagnostic Radiology Physician | Warwick, RI |
| 1780672667 | John Cronan | Individual | Diagnostic Radiology Physician | Warwick, RI |
| 1245228105 | Mary Hillstrom | Individual | Diagnostic Radiology Physician | Warwick, RI |
| 1508854472 | Peter Evangelista | Individual | Diagnostic Radiology Physician | Warwick, RI |
| 1164411591 | Julie Song | Individual | Diagnostic Radiology Physician | Warwick, RI |
| 1154310589 | Jonathan Movson | Individual | Diagnostic Radiology Physician | Warwick, RI |
| 1578553509 | Arthur Noel | Individual | Diagnostic Radiology Physician | Warwick, RI |
Verify this record
Cross-check NPI 1245228121 against the authoritative CMS record: view Mark S Ridlen on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2019-03-18.