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

Dr. Frank Andrus Larson, MD FACS

Surgery Physician in Coos Bay, OR · enumerated 2005.

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

National Provider Identifier

1659355220

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Registry record

Entity type Individual (Type 1)

Name Dr. Frank Andrus Larson

Credential MD FACS

Sex Male

Practice address Coos Bay, OR, 97420

Phone (541) 267-5151

Fax (541) 266-4535

Enumeration date Dec 6, 2005

Last updated in NPPES Mar 23, 2010

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

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License MD17655 (OR) Primary

Other identifiers

Identifier	Type	State	Issuer
P00143341	Other	OR	RR MEDICARE PTAN NUMBER
CB3544	Other	OR	RR MEDICARE GROUP NUMBER
1407812365	Other	OR	NBMC NPI NUMBER-GROUP
041629	Medicaid	OR	-
R0000WFBTV	Other	OR	MEDICARE GROUP PIN NUMBER

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 Frank Larson's NPI record?

Cross-check NPI 1659355220 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1659355220 active?

Yes, as of the latest NPPES snapshot, NPI 1659355220 is active (record last updated 2010-03-23).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-03-23.