Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alexandra Sarah Portnoy, M.S

Marriage & Family Therapist in North Hills, CA · enumerated 2012 · practices at Penny Lane Centers.

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

National Provider Identifier

1083965131

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Registry record

Entity type Individual (Type 1)

Name Alexandra Sarah Portnoy

Credential M.S

Sex Female

Practice address 15305 Rayen St, North Hills, CA, 91343

Phone (818) 892-3423

Enumeration date Sep 28, 2012

Last updated in NPPES Jan 22, 2018

Taxonomy & licenses

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License 91852 (CA) Secondary

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License 104137 (CA) 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.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Alexandra Portnoy?

Alexandra Portnoy is registered in NPPES with the primary taxonomy of Marriage & Family Therapist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-01-22.