Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. John E Mathews, PSYD

Clinical Psychologist in Topsfield, MA · enumerated 2007.

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

National Provider Identifier

1871785790

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Registry record

Entity type Individual (Type 1)

Name Dr. John E Mathews

Credential PSYD

Sex Male

Practice address Topsfield, MA, 01983

Phone (978) 887-6173

Fax (978) 887-6173

Enumeration date Aug 14, 2007

Last updated in NPPES Sep 29, 2010

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

103G00000X Clinical Neuropsychologist Behavioral Health & Social Service Providers · License 4095 (MA) Secondary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 4095 (MA) Primary

103TC2200X Clinical Child & Adolescent Psychologist Behavioral Health & Social Service Providers · License 4095 (MA) Secondary

103TH0100X Health Service Psychologist Behavioral Health & Social Service Providers · License 4095 (MA) Secondary

103TS0200X School Psychologist Behavioral Health & Social Service Providers · License 4095 (MA) Secondary

PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD credential

Other identifiers

Identifier	Type	State	Issuer
MA-W50626	Other	MA	MEDICARE B
0518441	Medicaid	MA	-

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 John Mathews's NPI record?

Cross-check NPI 1871785790 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1871785790 active?

Yes, as of the latest NPPES snapshot, NPI 1871785790 is active (record last updated 2010-09-29).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-09-29.