Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Karl Richard Harer, D.C.

Chiropractor in Ventura, CA · enumerated 2005.

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

National Provider Identifier

1659360865

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Registry record

Entity type Individual (Type 1)

Name Dr. Karl Richard Harer

Credential D.C.

Sex Male

Practice address 4517 Market St, Suite 1, Ventura, CA, 93003

Phone (805) 650-5929

Fax (805) 650-5947

Enumeration date Oct 19, 2005

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License DC17899 (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

Is NPI 1659360865 active?

Yes, as of the latest NPPES snapshot, NPI 1659360865 is active (record last updated 2007-07-08).

How do I verify Karl Harer's NPI record?

Cross-check NPI 1659360865 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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M.Warmuth C.O.,Inc. Prosthetic/Orthotic Supplier · Ventura, CA NPI 1720198120 John Mcatee Prosthetist · Ventura, CA NPI 1639249766 Eric Mortensen Chiropractor · Ventura, CA NPI 1073675971 Channel Islands Prosthetics-Orthotics Prosthetic/Orthotic Supplier · Ventura, CA NPI 1891902524 Karl R. Harer Chiropractic, Incorporated Chiropractor · Ventura, CA NPI 1154591592 Mark Warmuth Orthotist · Ventura, CA NPI 1205000957 Eric G Mortensen Chiropractic Inc Chiropractor · Ventura, CA NPI 1518407592

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