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

Dr. Ronald Sheldon Friedman, PH.D.

Psychologist in Mamaroneck, NY · enumerated 2006.

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

National Provider Identifier

1518030774

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Registry record

Entity type Individual (Type 1)

Name Dr. Ronald Sheldon Friedman

Credential PH.D.

Sex Male

Practice address Mamaroneck, NY, 10543

Phone (914) 698-2898

Fax (914) 698-2898

Enumeration date Nov 16, 2006

Last updated in NPPES Sep 11, 2025

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 004983-1 (NY) Secondary

103TC2200X Clinical Child & Adolescent Psychologist Behavioral Health & Social Service Providers · License 004983-1 (NY) Secondary

103T00000X Psychologist Behavioral Health & Social Service Providers · License 004983-1 (NY) Secondary

103TP2701X Group Psychotherapy Psychologist Behavioral Health & Social Service Providers · License 004983-1 (NY) Secondary

103T00000X Psychologist Behavioral Health & Social Service Providers Primary

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

What is the NPI number for Ronald Friedman?

The National Provider Identifier (NPI) for Ronald Friedman is 1518030774, a Type 1 (individual) record in the CMS NPPES registry.

Where does Ronald Friedman practice?

The practice location on file with NPPES is in Mamaroneck, NY. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.