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

Dr. Steven Lee Katz, D.C.

Orthopedic Chiropractor in Mill Valley, CA · enumerated 2006.

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

National Provider Identifier

1821167610

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Registry record

Entity type Individual (Type 1)

Name Dr. Steven Lee Katz

Credential D.C.

Sex Male

Practice address Mill Valley, CA, 94941

Phone (415) 381-3838

Fax (415) 381-9366

Enumeration date Nov 7, 2006

Last updated in NPPES Jun 14, 2019

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

Taxonomy & licenses

111NX0800X Orthopedic Chiropractor Chiropractic Providers · License 12725 (CA) Primary

DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

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 Steven Katz's NPI record?

Cross-check NPI 1821167610 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1821167610 active?

Yes — as of the latest NPPES snapshot, NPI 1821167610 is active (record last updated 2019-06-14).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-06-14.