Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Benjamin A Lessley, MA, LPC

Professional Counselor in Lake Oswego, OR · enumerated 2020.

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

National Provider Identifier

1659903334

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Registry record

Entity type Individual (Type 1)

Name Benjamin A Lessley

Credential MA, LPC

Sex Male

Practice address 17979 Stafford Rd, Lake Oswego, OR, 97034

Phone (503) 929-1348

Enumeration date Feb 10, 2020

Last updated in NPPES Feb 10, 2020

Taxonomy & licenses

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License C4815 (OR) Primary

LPC · Licensed Professional Counselor: A licensed mental-health counselor providing psychotherapy. About the LPC credential

Other identifiers

Identifier	Type	State	Issuer
C4815	Other	OR	OBLPCT LICENSE

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 Benjamin Lessley's NPI record?

Cross-check NPI 1659903334 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1659903334 active?

Yes, as of the latest NPPES snapshot, NPI 1659903334 is active (record last updated 2020-02-10).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-02-10.