Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Catherine Downey, RN

Registered Nurse in Brighton, MA · enumerated 2010.

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

National Provider Identifier

1235442641

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Registry record

Entity type Individual (Type 1)

Name Catherine Downey

Credential RN

Sex Female

Practice address 77 Warren St, Brighton, MA, 02135

Phone (617) 254-1271

Fax (617) 782-7668

Enumeration date Jul 15, 2010

Last updated in NPPES Jul 15, 2010

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 236142 (MA) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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 Catherine Downey?

Catherine Downey is registered in NPPES with the primary taxonomy of Registered Nurse. 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 2010-07-15.