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

Dr. Trevor Stanley Douglass, DC, CCSP, MPH

Chiropractor in Salem, OR · enumerated 2006.

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

National Provider Identifier

1255420139

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Registry record

Entity type Individual (Type 1)

Name Dr. Trevor Stanley Douglass

Credential DC, CCSP, MPH

Sex Male

Practice address Salem, OR, 97301

Phone (971) 209-2774

Enumeration date Oct 11, 2006

Last updated in NPPES Dec 17, 2012

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 273119 (OR) Primary

111NS0005X Sports Physician Chiropractor Chiropractic Providers · License 273119 (OR) Secondary

DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

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

Is NPI 1255420139 active?

Yes — as of the latest NPPES snapshot, NPI 1255420139 is active (record last updated 2012-12-17).

How do I verify Trevor Douglass's NPI record?

Cross-check NPI 1255420139 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-12-17.