Jeffrey Winston Knowles, D.C.
Chiropractor · Carlsbad, CA
Jeffrey Winston Knowles, D.C. is a chiropractor with a practice address in Carlsbad, California, and NPI 1083756290, issued on Feb 13, 2007. Check the license (California DC15531, 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
- Jeffrey Winston Knowles
- Credential
- D.C.
- Primary taxonomy
- Chiropractor 111N00000X
- License number
- DC15531 CA
Self-reported in NPPES; status is on the state search - Practice location
- 590 Laguna Dr, Carlsbad, CA 92008
- Phone
- (760) 434-6141
- Enumerated
- Feb 13, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (760) 434-6150
- Entity
- Type 1 · individual
8 nearest chiropractor records → All 11,498 in California → Look up another NPI →
Also registered at 590 Laguna Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Kari Knowles, D.C.Chiropractor1063606457
- Meagan Kruggel, OTR/LPediatric Occupational Therapist1619382066
- Jennifer Seltzer-Ogle, D.C.Rehabilitation Chiropractor1902033293
Verify Jeffrey Winston Knowles in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license DC15531Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Jeffrey Winston Knowles among 11,498 chiropractor records in California
Jeffrey Winston Knowles, 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 2007, is newer than 35% of them.
- NPI issued2007 · 35% of these records are older, 45% newer
- In a Medicare fileNo · 7% of these records are
- In the CMS Doctors and Clinicians fileNo · 25% of these records are
- 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).
63 chiropractor records list a practice address in Carlsbad
They are 63 of the 3,411 NPPES records with a practice address in Carlsbad, 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 Carlsbad → Chiropractor nationwide →
The 8 chiropractor records with the nearest ZIP codes
- Kathleen Alderete, D.C.Carlsbad, CA 920081174556203
- Shawn Burns, D.C.Carlsbad, CA 920081215988985
- David Cruz, D.C.Carlsbad, CA 920081437228947
- Gregory Frost, DCCarlsbad, CA 920081023058039
- Rodimiro Gamboa, DCCarlsbad, CA 920081578503587
- Michael Jacobs, D.C., QMECarlsbad, CA 920081538271325
- Clinton Kinnear, D.C.Carlsbad, CA 920081730258989
- Andrew Osborne, DCCarlsbad, CA 920081346293669
Common questions
What is Jeffrey Winston Knowles, D.C.'s NPI number?
Jeffrey Winston Knowles, D.C.'s National Provider Identifier (NPI) is 1083756290, issued on Feb 13, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Jeffrey Winston Knowles, D.C. located?
The NPPES record lists a practice address at 590 Laguna Dr, Carlsbad, CA, 92008. Phone: (760) 434-6141. Providers update this record themselves, so call before visiting.
How can I verify Jeffrey Winston Knowles, D.C.'s license?
NPPES lists California license number DC15531, 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.