Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Allison Penn

Psychoanalyst in New York, NY · enumerated 2016 · practices at Clemens A. Loew,Ph.D, P.A..

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

National Provider Identifier

1881144319

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Registry record

Entity type Individual (Type 1)

Name Allison Penn

Sex Female

Practice address 250 W 57th St Ste 501, New York, NY, 10107

Phone (212) 582-1566

Enumeration date Oct 7, 2016

Last updated in NPPES Oct 29, 2018

Taxonomy & licenses

102L00000X Psychoanalyst Behavioral Health & Social Service Providers · License 001029-1 (NY) Primary

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 1881144319 active?

Yes, as of the latest NPPES snapshot, NPI 1881144319 is active (record last updated 2018-10-29).

How do I verify Allison Penn's NPI record?

Cross-check NPI 1881144319 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-10-29.