Karl Richard Harer, D.C.
Chiropractor · Ventura, CA
Karl Richard Harer, D.C. is a chiropractor with a practice address in Ventura, California, and NPI 1659360865, issued on Oct 19, 2005. Check the license (California DC17899, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Karl Richard Harer
- Credential
- D.C.
- Primary taxonomy
- Chiropractor 111N00000X
- License number
- DC17899 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4517 Market St, Ventura, CA 93003
- Phone
- (805) 650-5929
- Enumerated
- Oct 19, 2005
- Record last updated
- Jul 13, 2026
- Fax
- (805) 650-5947
- Medicare enrollment
- Enrolled (PECOS I20040824000593); accepts Medicare assignment
- Medical or professional school
- Los Angeles College Of Chiropractic, 1986
- Entity
- Type 1 · individual
8 nearest chiropractor records → All 11,498 in California → Look up another NPI →
Also registered at 4517 Market St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John McAtee, C.P.Prosthetist1639249766
- Eric Mortensen, D.C.Chiropractor1073675971
- Mark Warmuth, C.O.Orthotist1205000957
Verify Karl Richard Harer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license DC17899Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Eric G Mortensen Chiropractic IncVentura, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karl Richard Harer among 11,498 chiropractor records in California
Karl Richard Harer, D.C. is one of 11,498 chiropractor records with a practice address in California. 7% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 97% newer
- In a Medicare fileYes · 7% of these records are
- In the CMS Doctors and Clinicians fileYes · 25% of these records are
- Graduated1986 · median 1999 among the 2,907 with a school on file
- Record last updated2026 · 77% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 111N00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
52 chiropractor records list a practice address in Ventura
They are 52 of the 4,435 NPPES records with a practice address in Ventura, and 11,498 chiropractor records in California.
All 11,498 in California → Every provider in Ventura → Chiropractor nationwide →
The 8 chiropractor records with the nearest ZIP codes
- Larry Auda, DCVentura, CA 930031003800681
- David Eckerson, DCVentura, CA 930031912005448
- Delia GoreyVertura, CA 930031477657989
- Brian Ito, D.C.Ventura, CA 930031104876275
- Ruby Kevala, D.C.Ventura, CA 930031528009917
- Lars Lundstrom, DCVentura, CA 930031114908910
- Larry Maddalena, D.C.Ventura, CA 930031225031511
- Dominique Manasson, D.C.Ventura, CA 930031497864367
Common questions
What is Karl Richard Harer, D.C.'s NPI number?
Karl Richard Harer, D.C.'s National Provider Identifier (NPI) is 1659360865, issued on Oct 19, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Karl Richard Harer, D.C. located?
The NPPES record lists a practice address at 4517 Market St, Ventura, CA, 93003. Phone: (805) 650-5929. Providers update this record themselves, so call before visiting.
How can I verify Karl Richard Harer, D.C.'s license?
NPPES lists California license number DC17899, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.