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

Dr. Dennis Alan Nehamen, PH.D.

Psychologist in Sherman Oaks, CA · enumerated 2009.

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

National Provider Identifier

1427385418

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Dennis Alan Nehamen

Credential PH.D.

Sex Male

Practice address Sherman Oaks, CA, 91403

Phone (818) 986-9378

Fax (818) 501-3913

Enumeration date Nov 11, 2009

Last updated in NPPES Nov 11, 2009

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

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License PSY5264 (CA) 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

How do I verify Dennis Nehamen's NPI record?

Cross-check NPI 1427385418 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1427385418 active?

Yes, as of the latest NPPES snapshot, NPI 1427385418 is active (record last updated 2009-11-11).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-11-11.