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

Thomas A Tashjian, PHD

Clinical Psychologist in Newton, MA · enumerated 2006 · practices at Sbsc Inc..

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

National Provider Identifier

1912959602

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Registry record

Entity type Individual (Type 1)

Name Thomas A Tashjian

Credential PHD

Sex Male

Practice address Newton, MA, 02460

Phone (617) 244-3322

Fax (617) 244-1827

Enumeration date May 17, 2006

Last updated in NPPES Oct 12, 2010

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

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 3022 (MA) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier	Type	State	Issuer
W03456	Other	MA	BLUE CROSS BLUE SHIELD OF
0525154	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

What specialty is Thomas Tashjian?

Thomas Tashjian is registered in NPPES with the primary taxonomy of Clinical Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

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Marian Desrochers Family Nurse Practitioner · Newton, MA NPI 1225008592 Sbsc Inc. Clinical Psychologist · Newton, MA NPI 1780635359 Maryann Saunders Nurse Practitioner · Newton, MA NPI 1114971785 Sharon Haggerty Nurse Practitioner · Newton, MA NPI 1649226945 Suzanne Keefe Nurse Practitioner · Newton, MA NPI 1467408765 Janice Landis Clinical Social Worker · Newton, MA NPI 1851329312 James Robison Psychiatry Physician · Newton, MA NPI 1679672539 Nancy Feingold-Palmer Clinical Psychologist · Newton, MA NPI 1801994736

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-10-12.