Dr. Daniel Charles Diffin, MD
Dr. Daniel Charles Diffin is a Diagnostic Radiology Physician provider (Radiology) practicing in Westerly, RI, registered in the NPPES registry with NPI 1649240821 since 2006. The credential MD stands for Doctor of Medicine. Practices at Lmw Healthcare Inc. (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1649240821 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Daniel Charles Diffin |
| Credential | MD |
| Sex | Male |
| Practice address | 25 WELLS STREET, THE WESTERLY HOSPITAL, Westerly, RI, 02891 |
| Phone | 8604159248 |
| Fax | 8604159237 |
| Enumeration date | 2006-01-23 |
| Last updated in NPPES | 2017-11-29 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 2085R0202X | Diagnostic Radiology Physician | Primary | MD10260 | 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 |
|---|---|---|---|
| 7008117 | Medicaid | RI | — |
Copy-ready billing details
Provider: Daniel Diffin, MD NPI: 1649240821 Taxonomy: 2085R0202X (Diagnostic Radiology Physician) Address: 25 WELLS STREET, THE WESTERLY HOSPITAL, Westerly, RI, 02891
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1659356533 | Jay Colby | Individual | Diagnostic Radiology Physician | Westerly, RI |
| 1104869858 | Robert Harrison | Individual | Surgery Physician | Westerly, RI |
| 1174605398 | Patricia Cervera | Individual | Acute Care Nurse Practitioner | Westerly, RI |
| 1447595368 | Lmw Healthcare Inc. | Organization | General Acute Care Hospital | Westerly, RI |
Verify this record
Cross-check NPI 1649240821 against the authoritative CMS record: view Dr. Daniel Charles Diffin 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 2017-11-29.