Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Matthieu Philippe Declerck, M.D.

Personal Emergency Response Attendant in Stanford, CA · enumerated 2007.

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

National Provider Identifier

1891975538

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Registry record

Entity type Individual (Type 1)

Name Matthieu Philippe Declerck

Credential M.D.

Sex Male

Practice address 300 Pasteur Dr, Alway Building, Room 121, Stanford, CA, 94305

Phone (650) 725-9445

Enumeration date Nov 9, 2007

Last updated in NPPES Sep 3, 2013

Taxonomy & licenses

146D00000X Personal Emergency Response Attendant Emergency Medical Service Providers · License A101627 (CA) Primary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 48842 (CO) 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
68132735	Medicaid	CO	-
021043	Other	CO	KAISER COMMERCIAL NUMBER

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

How do I verify Matthieu Declerck's NPI record?

Cross-check NPI 1891975538 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1891975538 active?

Yes, as of the latest NPPES snapshot, NPI 1891975538 is active (record last updated 2013-09-03).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-09-03.