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

Dr. Steen W. Jensen, MD FACS

Surgery Physician in Quincy, CA · enumerated 2006.

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

National Provider Identifier

1558320739

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Registry record

Entity type Individual (Type 1)
Name Dr. Steen W. Jensen
Credential MD FACS
Sex Male
Practice address Quincy, CA, 95971
Phone (530) 283-1506
Fax (530) 283-7953
Enumeration date Mar 17, 2006
Last updated in NPPES Feb 18, 2021

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

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License G75001 (CA) Primary

Other identifiers

Identifier Type State Issuer
00G750010 Medicaid CA -

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

Is NPI 1558320739 active?
Yes, as of the latest NPPES snapshot, NPI 1558320739 is active (record last updated 2021-02-18).
How do I verify Steen Jensen's NPI record?
Cross-check NPI 1558320739 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-02-18.