Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Charles Lewis Fein, MD

Internal Medicine Physician in Corvallis, OR · enumerated 2007.

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

National Provider Identifier

1538217872

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Charles Lewis Fein

Credential MD

Sex Male

Practice address 4350 Nw Canary Pl, Corvallis, OR, 97330

Phone (818) 268-5453

Enumeration date Jan 5, 2007

Last updated in NPPES Mar 25, 2020

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 34393 (WA) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD-9554 (HI) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD2019-0627 (NM) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD20979 (OR) Primary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License G78781 (CA) Secondary

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
085659	Medicaid	OR	-
8204380	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 specialty is Charles Fein?

Charles Fein is registered in NPPES with the primary taxonomy of Internal Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-03-25.