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DR. MARGARET M POSTLEWAITE PHD
NPI 1316995772
Psychologist - Clinical in White Plains, NY

Active since May 05, 2006Opted out of Medicare · through Jan 23, 2028
16 BYRON AVE, WHITE PLAINS, NY 10606(914) 428-4245 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Margaret M Postlewaite Phd NPPES

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

DR. MARGARET M POSTLEWAITE PHD (NPI 1316995772) is an individual clinical provider in White Plains, New York, licensed in New York (5107) and active in the NPI registry since May 2006. She has opted out of Medicare through January 23, 2028.

NPPES Registry Identity

NPI1316995772
Entity TypeIndividualFemale
Primary Taxonomy103TC0700X
Provider Legal NameDR. MARGARET M POSTLEWAITECredential: PHD
Location Address16 BYRON AVEWhite Plains, NY 10606-3443
Mailing Address16 Byron AveWhite Plains, NY 10606-3443 · (914) 428-4245
Phone(914) 428-4245
Sole ProprietorYes
Enumeration DateMay 5, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1316995772 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License✔ Licensed in NY · 5107
Definition
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.
16 BYRON AVE, White Plains, NY 10606
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Other Identifiers 1

Medicare ID-Type UnspecifiedV48101NY

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Dr. Margaret M Postlewaite Phd 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 January 23, 2026 through January 23, 2028.

Opt-Out Effective DateJanuary 23, 2026
Opt-Out In Effect ThroughJanuary 23, 2028Opt-out affidavits renew automatically every two years unless cancelled

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Psychotherapy, 45 minutes 90834
Psychotherapy is a treatment method where you converse with a therapist about your thoughts, feelings, and behaviors. In a 45-minute session, the therapist assists you in understanding and managing your mental health concerns, improving emotional wellness, and promoting personal growth.
117 services12 patients

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 Margaret Postlewaite's NPI number?

The NPI number for Margaret Postlewaite is 1316995772. It was assigned to this individual provider in the NPPES registry on May 5, 2006.

Where is Margaret Postlewaite located?

Margaret Postlewaite practices at 16 Byron Ave, White Plains, NY 10606. The listed phone number is (914) 428-4245.

What is Margaret Postlewaite's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is Margaret Postlewaite enrolled in Medicare?

No. Margaret Postlewaite has opted out of Medicare through January 23, 2028. 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 Margaret Postlewaite was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.