Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. KARL RICHARD HARER D.C.
NPI 1659360865
Chiropractor in Ventura, CA

Q: What is Karl Harer's NPI number?

The NPI number for Karl Harer is 1659360865. It was assigned to this individual provider in the NPPES registry on October 19, 2005.

Q: What is Karl Harer's specialty?

The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.

Q: When was this NPI record last updated?

The NPPES record for Karl Harer was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 42 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since October 19, 2005

4517 MARKET ST, SUITE 1, VENTURA, CA 93003(805) 650-5929(805) 650-5947 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Dr. Karl Richard Harer D.c. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. KARL RICHARD HARER D.C. (NPI 1659360865) is an individual chiropractor in Ventura, California, licensed in California (DC17899) and active in the NPI registry since October 2005. He is a graduate of Los Angeles College Of Chiropractic (1986).

NPPES Registry Identity

NPI1659360865

Entity TypeIndividualMale

Primary Taxonomy111N00000X

Provider Legal NameDR. KARL RICHARD HARERCredential: D.C.

Location Address4517 MARKET ST, SUITE 1Ventura, CA 93003-7710

Mailing Address4517 Market St, Suite 1Ventura, CA 93003-7710 · (805) 650-5929 · Fax (805) 650-5947

Phone(805) 650-5929

Fax(805) 650-5947

Sole ProprietorNo

Medical School CMSLos Angeles College Of ChiropracticGraduated 1986

Enumeration DateOctober 19, 2005

Last NPPES UpdateJuly 13, 2026

✔ NPI 1659360865 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyChiropractorChiropractic Providers

Taxonomy Code111N00000X

License✔ Licensed in CA · DC17899

Definition

A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.

4517 MARKET ST, Ventura, CA 93003

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Karl Richard Harer D.c. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8820062086

PECOS Enrollment IDI20040824000593

Other Providers at the Same Location NPPES 7

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ERIC G MORTENSEN D.C.

Chiropractor

4517 MARKET ST, SUITE 1
VENTURA, CA 93003

Ventura County (805) 650-5929

KARL R. HARER CHIROPRACTIC, INCORPORATED

Chiropractor

4517 MARKET ST, SUITE 1
VENTURA, CA 93003

Ventura County (805) 650-5929

MR. MARK J WARMUTH C.O.

Orthotist

4517 MARKET ST, STE 4
VENTURA, CA 93003

Ventura County (805) 658-1822

ERIC G MORTENSEN CHIROPRACTIC INC

Chiropractor

4517 MARKET ST, SUITE 1
VENTURA, CA 93003

Ventura County (805) 650-5929

JOHN STEPHEN MCATEE C.P.

Prosthetist

4517 MARKET ST, STE 4
VENTURA, CA 93003

Ventura County (805) 658-1822

M.WARMUTH C.O.,INC.

Prosthetic/Orthotic Supplier

4517 MARKET ST, SUITE 4
VENTURA, CA 93003

Ventura County (805) 658-1822

CHANNEL ISLANDS PROSTHETICS-ORTHOTICS

Prosthetic/Orthotic Supplier

4517 MARKET ST, STE 4
VENTURA, CA 93003

Ventura County (805) 658-1822

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Karl Harer's NPI number?

The NPI number for Karl Harer is 1659360865. It was assigned to this individual provider in the NPPES registry on October 19, 2005.

Where is Karl Harer located?

Karl Harer practices at 4517 Market St Suite 1, Ventura, CA 93003. The listed phone number is (805) 650-5929.

What is Karl Harer's specialty?

The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.

Is Karl Harer enrolled in Medicare?

Yes. Karl Harer is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Karl Harer was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 42 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.