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Dr. Charles Ralph Mueller, M.D.

Surgery Physician in Portland, OR · enumerated 2006.

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

National Provider Identifier

1952349177

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Registry record

Entity type Individual (Type 1)
Name Dr. Charles Ralph Mueller
Credential M.D.
Sex Male
Practice address 501 N Graham St Ste 555, Portland, OR, 97227
Phone (503) 288-7535
Fax (503) 288-7538
Enumeration date Jun 2, 2006
Last updated in NPPES Dec 5, 2023

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License MD15681 (OR) 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
500667564 Medicaid OR -
1952349177 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.

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Frequently asked questions

Where does Charles Mueller practice?
The practice location on file with NPPES is in Portland, OR. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Charles Mueller?
The National Provider Identifier (NPI) for Charles Mueller is 1952349177, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-12-05.