NPI Portal NPI Lookup & Verification

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

Dr. Christina Lynn Youngren, N.D.

Naturopath in San Francisco, CA · enumerated 2009.

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

National Provider Identifier

1518101658

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Registry record

Entity type Individual (Type 1)
Name Dr. Christina Lynn Youngren
Credential N.D.
Sex Female
Practice address San Francisco, CA, 94115
Phone (415) 742-2655
Enumeration date Apr 20, 2009
Last updated in NPPES Jun 21, 2013

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

Taxonomy & licenses

175F00000X Naturopath Other Service Providers · License ND-356 (CA) Primary

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 Christina Youngren's NPI record?
Cross-check NPI 1518101658 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1518101658 active?
Yes, as of the latest NPPES snapshot, NPI 1518101658 is active (record last updated 2013-06-21).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-06-21.