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

Dr. Cynthia Rhea Lewis-Younger, MD, MPH

Occupational Medicine Physician in Washougal, WA · enumerated 2006.

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

National Provider Identifier

1255391868

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Registry record

Entity type Individual (Type 1)

Name Dr. Cynthia Rhea Lewis-Younger

Credential MD, MPH

Sex Female

Practice address Washougal, WA, 98671

Phone (813) 321-9776

Fax (813) 246-4654

Enumeration date Mar 27, 2006

Last updated in NPPES Aug 25, 2018

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

Taxonomy & licenses

2083T0002X Medical Toxicology (Preventive Medicine) Physician Allopathic & Osteopathic Physicians · License MD00040364 (WA) Secondary

2083T0002X Medical Toxicology (Preventive Medicine) Physician Allopathic & Osteopathic Physicians · License MD173259 (OR) Secondary

2083X0100X Occupational Medicine Physician Allopathic & Osteopathic Physicians · License MD173259 (OR) Secondary

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License MD00040364 (WA) Secondary

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License MD173259 (OR) Secondary

2083X0100X Occupational Medicine Physician Allopathic & Osteopathic Physicians · License MD00040364 (WA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
CA7094	Other	GA	MEDICARE TRAVELERS GA
650622862043	Other	FL	CHAMPUS-TRICARE
055237201	Medicaid	FL	-

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

How do I verify Cynthia Lewis-Younger's NPI record?

Cross-check NPI 1255391868 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1255391868 active?

Yes, as of the latest NPPES snapshot, NPI 1255391868 is active (record last updated 2018-08-25).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-08-25.