NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Lewis Detwiler

Addiction (Substance Use Disorder) Counselor in Astoria, OR · enumerated 2016.

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

National Provider Identifier

1659820504

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Lewis Detwiler
Sex Male
Practice address 2120 Exchange St Ste 301, Astoria, OR, 97103
Phone (503) 325-0241
Fax (503) 861-2043
Enumeration date Oct 3, 2016
Last updated in NPPES Oct 3, 2016

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers 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

What is the NPI number for Lewis Detwiler?
The National Provider Identifier (NPI) for Lewis Detwiler is 1659820504, a Type 1 (individual) record in the CMS NPPES registry.
Where does Lewis Detwiler practice?
The practice location on file with NPPES is in Astoria, OR. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-10-03.