Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Christopher P. Sienes, D.C.

Chiropractor in Jackson, CA · enumerated 2006.

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

National Provider Identifier

1508966334

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Registry record

Entity type Individual (Type 1)

Name Dr. Christopher P. Sienes

Credential D.C.

Sex Male

Practice address 665 New York Ranch Rd, Suite 1, Jackson, CA, 95642

Phone (209) 223-2225

Fax (209) 223-2976

Enumeration date Sep 22, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License DC182610 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Christopher Sienes's NPI record?

Cross-check NPI 1508966334 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1508966334 active?

Yes, as of the latest NPPES snapshot, NPI 1508966334 is active (record last updated 2007-07-08).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.