Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Claire Ruane, MD

Hospitalist Physician in Newark, NJ · enumerated 2021.

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

National Provider Identifier

1891377677

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Registry record

Entity type Individual (Type 1)

Name Dr. Claire Ruane

Credential MD

Sex Female

Practice address 150 Bergen St, University Hospital, Room I-248, Newark, NJ, 07103

Phone (973) 972-6056

Fax (973) 972-3129

Enumeration date Apr 22, 2021

Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 25MA12610300 (NJ) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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.

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Frequently asked questions

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.

What specialty is Claire Ruane?

Claire Ruane is registered in NPPES with the primary taxonomy of Hospitalist Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.