NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Catherine A Collings, M.D.

Cardiovascular Disease Physician in Mountain View, CA · enumerated 2005.

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

National Provider Identifier

1447253349

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Registry record

Entity type Individual (Type 1)
Name Catherine A Collings
Credential M.D.
Sex Female
Practice address 2495 Hospital Dr Ste 460, Mountain View, CA, 94040
Phone (650) 962-4370
Fax (650) 962-4380
Enumeration date May 24, 2005
Last updated in NPPES Nov 11, 2020

Taxonomy & licenses

174400000X Specialist Other Service Providers · License G64207 (CA) Secondary
207UN0901X Nuclear Cardiology Physician Allopathic & Osteopathic Physicians · License G64207 (CA) Secondary
207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License G642070 (CA) 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 NPI 1447253349 active?
Yes, as of the latest NPPES snapshot, NPI 1447253349 is active (record last updated 2020-11-11).
How do I verify Catherine Collings's NPI record?
Cross-check NPI 1447253349 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-11-11.