Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Steven R Yolen, M.D.

Gastroenterology Physician in Westerly, RI · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1376582692

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Registry record

Entity type Individual (Type 1)

Name Steven R Yolen

Credential M.D.

Sex Male

Practice address 45 Wells St, Suite 103, Westerly, RI, 02891

Phone (401) 596-6330

Fax (401) 348-0420

Enumeration date Jun 5, 2006

Last updated in NPPES Nov 16, 2012

Taxonomy & licenses

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License MD10338 (RI) Primary

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 026127 (CT) Secondary

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
003108273	Medicaid	CT	-
9021219	Medicaid	RI	-

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 → Validate an NPI →

Frequently asked questions

What specialty is Steven Yolen?

Steven Yolen is registered in NPPES with the primary taxonomy of Gastroenterology 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-11-16.