NPI Portal NPI Lookup & Verification

Curtis M Williams, MD

Curtis M Williams is a Diagnostic Radiology Physician provider (Radiology) practicing in Woonsocket, RI, registered in the NPPES registry with NPI 1215930938 since 2005. The credential MD stands for Doctor of Medicine.

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NPI 1215930938
Entity type Individual (Type 1)
Name Curtis M Williams
Credential MD
Sex Male
Practice address 38 HAMLET AVE, Woonsocket, RI, 02895
Phone 4017620020
Fax 4017621819
Enumeration date 2005-05-27
Last updated in NPPES 2011-09-28

Taxonomy & licenses

Taxonomy code Specialty Primary License State
2085U0001X Diagnostic Ultrasound Physician Secondary MD08357 RI
2085R0202X Diagnostic Radiology Physician Primary MD08357 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
80949 Other MA MA LICENSE
MD08357 Other RI RI LICENSE
7003945 Medicaid RI
3132919 Medicaid MA
Copy-ready billing details
Provider: Curtis Williams, MD
NPI: 1215930938
Taxonomy: 2085R0202X (Diagnostic Radiology Physician)
Address: 38 HAMLET AVE, Woonsocket, RI, 02895

Other providers at this practice address

NPI Name Type Specialty Location
1558364273 John Baxter Individual Diagnostic Ultrasound Physician Woonsocket, RI
1720081441 Kathleen Staudinger Individual Nuclear Radiology Physician Woonsocket, RI
1780687400 Anthony Potenza Individual Diagnostic Radiology Physician Woonsocket, RI

Verify this record

Cross-check NPI 1215930938 against the authoritative CMS record: view Curtis M Williams 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

What specialty is Curtis Williams?
Curtis Williams is registered in NPPES with the primary taxonomy of Diagnostic Radiology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2011-09-28.