NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael I Mcnellis, MD

Pulmonary Disease Physician in Longview, WA · enumerated 2005.

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

National Provider Identifier

1649262171

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Michael I Mcnellis
Credential MD
Sex Male
Practice address 1615 Delaware St, Longview, WA, 98632
Fax (360) 414-2739
Enumeration date Aug 19, 2005
Last updated in NPPES Jun 9, 2010

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD00031478 (WA) Secondary
207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License MD00031478 (WA) Secondary
207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License MD00031478 (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
8931504 Other WA CRIME VICTIMS
150450 Medicaid OR -
8207748 Medicaid WA -
115014 Other WA LABOR & IND.
290010407 Other - RR MEDICARE

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

Where does Michael Mcnellis practice?
The practice location on file with NPPES is in Longview, WA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Michael Mcnellis?
The National Provider Identifier (NPI) for Michael Mcnellis is 1649262171, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-06-09.