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

Dr. Douglas Seiden, PH.D

Clinical Psychologist in Roseland, NJ · enumerated 2007.

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

National Provider Identifier

1326161316

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Registry record

Entity type Individual (Type 1)

Name Dr. Douglas Seiden

Credential PH.D

Sex Male

Practice address Roseland, NJ, 07068

Phone (212) 490-3590

Enumeration date Apr 6, 2007

Last updated in NPPES Apr 4, 2014

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 014277-1 (NY) Secondary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 35SI00394200 (NJ) Primary

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

Other identifiers

Identifier	Type	State	Issuer
P2721370	Other	NJ	OXFORD
P2721370	Other	NY	OXFORD
0007447266	Other	NJ	AETNA
0007447266	Other	NY	AETNA
555035000	Other	NJ	MAGELLAN
555035000	Other	NY	MAGELLAN

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.

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Frequently asked questions

How do I verify Douglas Seiden's NPI record?

Cross-check NPI 1326161316 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1326161316 active?

Yes, as of the latest NPPES snapshot, NPI 1326161316 is active (record last updated 2014-04-04).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-04-04.