Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Christina Martineau, PA

Physician Assistant in Darien, CT · enumerated 2006.

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

National Provider Identifier

1891886156

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Registry record

Entity type Individual (Type 1)

Name Mrs. Christina Martineau

Credential PA

Sex Female

Practice address 23 Old Stone Rd, Darien, CT, 06820

Phone (203) 309-5071

Enumeration date Sep 28, 2006

Last updated in NPPES Feb 4, 2015

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers Primary

PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program. About the PA 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Christina Martineau?

The National Provider Identifier (NPI) for Christina Martineau is 1891886156, a Type 1 (individual) record in the CMS NPPES registry.

Where does Christina Martineau practice?

The practice location on file with NPPES is in Darien, CT. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-02-04.