Ralph W. Jeffery, D.C.
Chiropractor · Modesto, CA
Ralph W. Jeffery, D.C. is a chiropractor with a practice address in Modesto, California, and NPI 1073533576, issued on Jul 20, 2006. Check the license (California 20635, 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
- Ralph W. Jeffery
- Credential
- D.C.
- Primary taxonomy
- Chiropractor 111N00000X
- License number
- 20635 CA
Self-reported in NPPES; status is on the state search - Practice location
- 200 Auto Center CT, Modesto, CA 95356
- Phone
- (209) 577-4277
- Enumerated
- Jul 20, 2006
- Record last updated
- Feb 1, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (209) 577-0942
- Medicare enrollment
- Enrolled (PECOS I20110112000058); accepts Medicare assignment
- Medical or professional school
- Palmer College Chiropractic - West Sunnyvale, 1989
- Entity
- Type 1 · individual
8 nearest chiropractor records → All 11,498 in California → Look up another NPI →
Also registered at 200 Auto Center CT
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gary Hall, D.C.Chiropractor1942211495
- Robert Logan, D.C.Chiropractor1235298019
Verify Ralph W. Jeffery in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 20635Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Ralph W. Jeffery among 11,498 chiropractor records in California
Ralph W. Jeffery, 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
- Graduated1989 · median 1999 among the 2,907 with a school on file
- Record last updated2016 · 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).
76 chiropractor records list a practice address in Modesto
They are 76 of the 9,262 NPPES records with a practice address in Modesto, 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 Modesto → Chiropractor nationwide →
The 8 chiropractor records with the nearest ZIP codes
- Michael Bystrom, DCModesto, CA 953561790537009
- Dean Early, D.C.Modesto, CA 953561184614521
- Gary Hall, D.C.Modesto, CA 953561942211495
- Robin Hinchman, DCModesto, CA 953561861412181
- Robert Logan, D.C.Modesto, CA 953561235298019
- Stephen Novak, DCModesto, CA 953561467560862
- Jeffery Anderson, D.C.Modesto, CA 953571205976859
- Brian Anderson, D.C.Modesto, CA 953571386837664
Common questions
What is Ralph W. Jeffery, D.C.'s NPI number?
Ralph W. Jeffery, D.C.'s National Provider Identifier (NPI) is 1073533576, issued on Jul 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ralph W. Jeffery, D.C. located?
The NPPES record lists a practice address at 200 Auto Center CT, Modesto, CA, 95356. Phone: (209) 577-4277. Providers update this record themselves, so call before visiting.
How can I verify Ralph W. Jeffery, D.C.'s license?
NPPES lists California license number 20635, 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.