Carl Oscar Larson, D.C.
Chiropractor · Thousand Oaks, CA
Carl Oscar Larson, D.C. is a chiropractor with a practice address in Thousand Oaks, California, and NPI 1861584096, issued on Sep 28, 2006. Check the license (California DC24466, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Carl Oscar Larson
- Credential
- D.C.
- Primary taxonomy
- Chiropractor 111N00000X
- License number
- DC24466 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1489 E Thousand Oaks Blvd, Thousand Oaks, CA 91362
- Phone
- (805) 495-8104
- Enumerated
- Sep 28, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (805) 495-6094
- Medicare enrollment
- Enrolled (PECOS I20120214000807); accepts Medicare assignment
- Medical or professional school
- Cleveland Chiropractic College - Los Angeles, 1996
- Entity
- Type 1 · individual
8 nearest chiropractor records → All 11,498 in California → Look up another NPI →
Verify Carl Oscar Larson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license DC24466Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Carl Oscar Larson among 11,498 chiropractor records in California
Carl Oscar Larson, 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 not. Its NPI, issued in 2006, is newer than 3% of them.
- NPI issued2006 · 3% of these records are older, 65% newer
- In a Medicare fileNo · 7% of these records are
- In the CMS Doctors and Clinicians fileYes · 25% of these records are
- Graduated1996 · median 1999 among the 2,907 with a school on file
- Record last updated2007 · 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).
56 chiropractor records list a practice address in Thousand Oaks
They are 56 of the 2,434 NPPES records with a practice address in Thousand Oaks, and 11,498 chiropractor records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 11,498 in California → Every provider in Thousand Oaks → Chiropractor nationwide →
The 8 chiropractor records with the nearest ZIP codes
- Lori Bell-Schroeder, D.C.Westlake Village, CA 913621447342654
- Shana Berger, DCThousand Oaks, CA 913621811080344
- Eran Bikovsky, D.C.Westlake Village, CA 913621023194529
- Eric Blum, D.C.Westlake Village, CA 913621063447985
- Lindsay Erickson, D.C.Westlake Village, CA 913621801014535
- Pierre Fey, D.C.Westlake Village, CA 913621396726741
- Barbara Fleming, D.C., L.AC.Thousand Oaks, CA 913621639271315
- Sonja Hahn, DCThousand Oaks, CA 913621851479182
Common questions
What is Carl Oscar Larson, D.C.'s NPI number?
Carl Oscar Larson, D.C.'s National Provider Identifier (NPI) is 1861584096, issued on Sep 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Carl Oscar Larson, D.C. located?
The NPPES record lists a practice address at 1489 E Thousand Oaks Blvd, Thousand Oaks, CA, 91362. Phone: (805) 495-8104. Providers update this record themselves, so call before visiting.
How can I verify Carl Oscar Larson, D.C.'s license?
NPPES lists California license number DC24466, 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. 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.