NPPES file of Aug 9, 2026

Peter Michael Litwin, PSYD

Clinical Psychologist · Amesbury, MA

Peter Michael Litwin, PSYD is a clinical psychologist with a practice address in Amesbury, Massachusetts, and NPI 1821026642, issued on Jun 29, 2006. Check the license (Massachusetts 8478, as entered in NPPES) with the Massachusetts board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1821026642
Name
Peter Michael Litwin
Credential
PSYD
Primary taxonomy
Clinical Psychologist 103TC0700X
License number
8478 MA
Self-reported in NPPES; status is on the state search
Practice location
12 Market SQ, Amesbury, MA 01913
Phone
(978) 388-0799
Enumerated
Jun 29, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(978) 388-1377
Medicare enrollment
Enrolled (PECOS I20051003000709); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 12 Market SQ

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Moray Wilson, LICSWClinical Social Worker1699279851

Verify Peter Michael Litwin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license 8478
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Massachusetts license search

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Peter Michael Litwin among 3,185 clinical psychologist records in Massachusetts

Peter Michael Litwin, PSYD is one of 3,185 clinical psychologist records with a practice address in Massachusetts. 12% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 70% newer
  • In a Medicare fileNo · 12% of these records are
  • In the CMS Doctors and Clinicians fileYes · 24% of these records are
  • Graduated2002 · median 2000 among the 777 with a school on file
  • Record last updated2007 · 71% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Clinical Psychologist providers in Massachusetts

There are 3,185 clinical psychologist records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 clinical psychologist records with the nearest ZIP codes

  1. Nicole Connolly, PHDAmesbury, MA 019131558324558
  2. William Newman, D.MIN.Amesbury, MA 019131720161540
  3. George Beilin, ED.DBeverly, MA 019151043286669
  4. Paige Carambio, PSYDBeverly, MA 019151376918458
  5. Dorian Crawford, LICENSED CLINICAL PSBeverly, MA 019151558694307
  6. Albert Curtis, PH.D.Beverly, MA 019151265678809
  7. Heather Ensworth, HEATHER ENSWORTHBeverly, MA 019151831420728
  8. Kathleen Meagher, PSY.D.Beverly, MA 019151841524717

Common questions

What is Peter Michael Litwin, PSYD's NPI number?

Peter Michael Litwin, PSYD's National Provider Identifier (NPI) is 1821026642, issued on Jun 29, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Peter Michael Litwin, PSYD located?

The NPPES record lists a practice address at 12 Market SQ, Amesbury, MA, 01913. Phone: (978) 388-0799. Providers update this record themselves, so call before visiting.

How can I verify Peter Michael Litwin, PSYD's license?

NPPES lists Massachusetts license number 8478, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.