1. Home
  2. Directory
  3. Connecticut
  4. Darien
  5. Physician Assistant
  6. NPI Profile

MRS. CHRISTINA MARTINEAU PA
NPI 1891886156
Physician Assistant in Darien, CT

Active since September 28, 2006Opted out of Medicare · through Dec 1, 2026
23 OLD STONE RD, DARIEN, CT 06820(203) 309-5071 Get Directions Write a Review

NPPES record last updated: February 4, 2015. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Mrs. Christina Martineau Pa NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MRS. CHRISTINA MARTINEAU PA (NPI 1891886156) is an individual physician assistant in Darien, Connecticut and active in the NPI registry since September 2006. She has opted out of Medicare through December 1, 2026 and is a graduate of Other (2006).

NPPES Registry Identity

NPI1891886156
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameMRS. CHRISTINA MARTINEAUCredential: PA
Location Address23 OLD STONE RDDarien, CT 06820-4419
Mailing Address489 Post Rd EWestport, CT 06880-4435 · (203) 226-3600
Phone(203) 309-5071
Sole ProprietorNo
Medical School CMSOtherGraduated 2006
Enumeration DateSeptember 28, 2006
Last NPPES UpdateFebruary 4, 2015
✔ NPI 1891886156 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
23 OLD STONE RD, Darien, CT 06820
Open in Google Maps ↗

Other Names 1

Former Name (1)Ms. Christina Carneiro Pa

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Mrs. Christina Martineau Pa has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from December 1, 2022 through December 1, 2026.

Opt-Out Effective DateDecember 1, 2022
Opt-Out In Effect ThroughDecember 1, 2026Opt-out affidavits renew automatically every two years unless cancelled

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Christina Martineau's NPI number?

The NPI number for Christina Martineau is 1891886156. It was assigned to this individual provider in the NPPES registry on September 28, 2006. The provider is also known as Ms. Christina Carneiro PA.

Where is Christina Martineau located?

Christina Martineau practices at 23 Old Stone Rd, Darien, CT 06820. The listed phone number is (203) 309-5071.

What is Christina Martineau's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Christina Martineau enrolled in Medicare?

No. Christina Martineau has opted out of Medicare through December 1, 2026. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.

When was this NPI record last updated?

The NPPES record for Christina Martineau was last updated on February 4, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.