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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Tammy Perkoski, PSY.D.

Clinical Psychologist in Foxboro, MA · enumerated 2007.

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

National Provider Identifier

1639293400

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Registry record

Entity type Individual (Type 1)
Name Ms. Tammy Perkoski
Credential PSY.D.
Sex Female
Practice address 34 School St, Ste 200, Foxboro, MA, 02035
Phone (617) 549-9459
Fax (508) 530-4163
Enumeration date Mar 19, 2007
Last updated in NPPES Dec 7, 2021

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 9015 (MA) Primary
PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD credential

Other identifiers

Identifier Type State Issuer
P2286 Other MA MEDICARE

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 Tammy Perkoski's NPI record?
Cross-check NPI 1639293400 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1639293400 active?
Yes, as of the latest NPPES snapshot, NPI 1639293400 is active (record last updated 2021-12-07).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-07.