NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Mark L. Tavitian, Ph.D., Ltd.

Clinical Psychologist in East Greenwich, RI · enumerated 2012 · authorized official Mark Tavitian, President.

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

National Provider Identifier

1316204910

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Mark L. Tavitian, Ph.D., Ltd.
Practice address 2730 S County Trl, East Greenwich, RI, 02818
Fax (401) 885-9898
Enumeration date Apr 19, 2012
Last updated in NPPES Apr 19, 2012

Taxonomy & classification

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PS358 (RI) Primary

Authorized official

Name Mark Tavitian
Title President

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.
What type of organization is Mark L. Tavitian, Ph.D., Ltd.?
Mark L. Tavitian, Ph.D., Ltd. is registered in NPPES as a Clinical Psychologist (its primary provider taxonomy).

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-04-19.