Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Geraldine Ruth Brownstein, MS LCSW

Clinical Social Worker in Lake Oswego, OR · enumerated 2007.

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

National Provider Identifier

1386869220

Verified

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Registry record

Entity type Individual (Type 1)

Name Geraldine Ruth Brownstein

Credential MS LCSW

Sex Female

Practice address 15800 Sw Boones Ferry Rd, Suite A 10, Lake Oswego, OR, 97035

Phone (503) 699-1165

Enumeration date Apr 16, 2007

Last updated in NPPES Jul 9, 2007

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 002879 (OR) Primary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 20363 (CA) Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 0002306 (FL) Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License LW00006015 (WA) Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 013252 (NY) Secondary

Other identifiers

Identifier	Type	State	Issuer
J9978	Other	OR	PACIFIC SOURCE HEALTH PLA

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 Geraldine Brownstein's NPI record?

Cross-check NPI 1386869220 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1386869220 active?

Yes, as of the latest NPPES snapshot, NPI 1386869220 is active (record last updated 2007-07-09).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.