Darrin Dewight Oilar, D.C.
Chiropractor · Cottonwood, CA
Darrin Dewight Oilar, D.C. is a chiropractor with a practice address in Cottonwood, California, and NPI 1023190048, issued on Oct 19, 2006. Check the license (California DC27142, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Darrin Dewight Oilar
- Credential
- D.C.
- Primary taxonomy
- Chiropractor 111N00000X
- License number
- DC27142 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3435 Main St., Cottonwood, CA 96022
- Phone
- (530) 347-9500
- Enumerated
- Oct 19, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (530) 347-4939
- Medicare enrollment
- Enrolled (PECOS I20100716000725); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest chiropractor records → All 11,498 in California → Look up another NPI →
Verify Darrin Dewight Oilar in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license DC27142Check 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
- Kremer Chiropractic IncRed Bluff, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Darrin Dewight Oilar among 11,498 chiropractor records in California
Darrin Dewight Oilar, 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 2006, is newer than 3% of them.
- NPI issued2006 · 3% of these records are older, 65% newer
- In a Medicare fileYes · 7% of these records are
- In the CMS Doctors and Clinicians fileYes · 25% of these records are
- Graduated1997 · 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).
2 chiropractor records list a practice address in Cottonwood
They are 2 of the 49 NPPES records with a practice address in Cottonwood, and 11,498 chiropractor records in California.
All 11,498 in California → Every provider in Cottonwood → Chiropractor nationwide →
The 8 chiropractor records with the nearest ZIP codes
- Michael Loustalet, DCCottonwood, CA 960221376525949
- Susan Eissinger, D.C.Corning, CA 960211922300029
- Darby Kremer, D.C.Corning, CA 960211619041589
- Karen Kramer, DCChester, CA 960201093818395
- Christopher Kobe, D.C.Shasta Lake, CA 960191912931197
- Kay Kobe, D.C.Shasta Lake, CA 960191568496743
- Kenneth Crum, DCEtna, CA 960271992299481
- Michael Maier, DCFall River Mills, CA 960281043375678
Common questions
What is Darrin Dewight Oilar, D.C.'s NPI number?
Darrin Dewight Oilar, D.C.'s National Provider Identifier (NPI) is 1023190048, issued on Oct 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Darrin Dewight Oilar, D.C. located?
The NPPES record lists a practice address at 3435 Main St., Cottonwood, CA, 96022. Phone: (530) 347-9500. Providers update this record themselves, so call before visiting.
How can I verify Darrin Dewight Oilar, D.C.'s license?
NPPES lists California license number DC27142, 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.