NPI Portal NPI Lookup & Verification

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

Dr. Alex Rosenstein, PSY.D.

Clinical Psychologist in Wellesley Hills, MA · enumerated 2011.

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

National Provider Identifier

1619254778

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Alex Rosenstein
Credential PSY.D.
Sex Male
Practice address Wellesley Hills, MA, 02481
Enumeration date Nov 3, 2011
Last updated in NPPES Sep 5, 2012

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

Taxonomy & licenses

103TB0200X Cognitive & Behavioral Psychologist Behavioral Health & Social Service Providers · License 9425 (MA) Secondary
103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 9425 (MA) Primary
103TC2200X Clinical Child & Adolescent Psychologist Behavioral Health & Social Service Providers · License 9425 (MA) Secondary
PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD credential

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

How do I verify Alex Rosenstein's NPI record?
Cross-check NPI 1619254778 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1619254778 active?
Yes, as of the latest NPPES snapshot, NPI 1619254778 is active (record last updated 2012-09-05).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-09-05.