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

Ellis W Johnson, MD

Internal Medicine Physician in Woodland, WA · enumerated 2006.

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

National Provider Identifier

1841306156

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Registry record

Entity type Individual (Type 1)

Name Ellis W Johnson

Credential MD

Sex Male

Practice address Woodland, WA, 98674

Phone (360) 225-8911

Fax (360) 225-8547

Enumeration date Aug 21, 2006

Last updated in NPPES Jul 8, 2007

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

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD00023663 (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
105322	Other	WA	DEPT OF L&I
016647	Medicaid	OR	-
1087113	Medicaid	WA	-

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 Ellis Johnson?

The National Provider Identifier (NPI) for Ellis Johnson is 1841306156, a Type 1 (individual) record in the CMS NPPES registry.

Where does Ellis Johnson practice?

The practice location on file with NPPES is in Woodland, WA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Timothy Horrocks Family Medicine Physician · Woodland, WA NPI 1770018087 Philip Ross Physician Assistant · Woodland, WA NPI 1972061513

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.