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

Dr. Dan Gartenberg Livney, PSY.D.

Psychologist in Conshohocken, PA · enumerated 2010.

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

National Provider Identifier

1659691343

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Dan Gartenberg Livney

Credential PSY.D.

Sex Male

Practice address Conshohocken, PA, 19428

Phone (484) 534-8830

Fax (844) 601-5942

Enumeration date Jun 4, 2010

Last updated in NPPES Jan 25, 2017

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 PS017301 (PA) Primary

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

Is NPI 1659691343 active?

Yes, as of the latest NPPES snapshot, NPI 1659691343 is active (record last updated 2017-01-25).

How do I verify Dan Livney's NPI record?

Cross-check NPI 1659691343 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-01-25.