Doctor profile · Federal record

Dr. Darrin Oilar, D.C.

Chiropractor (CMS: Chiropractic) · Cottonwood, CA

  • NPI 1023190048
  • 29 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
3435 Main St.
Cottonwood, CA 96022
(530) 347-9500
fax (530) 347-4939
Mailing address
Po Box 1827
Cottonwood, CA 960221827

Credentials & registration

NPPES · NUCC
NPI registered
October 2006 — 20 yrs on file
Profile last updated
July 8, 2007
Year of graduation
1997 — 29 yrs since
Specialty taxonomy
111N00000X — NUCC code
State license (1)
California #DC27142

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1023190048. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
679
Distinct HCPCS
1
Medicare allowed
$26,424
HCPCS Description Services Patients Avg allowed
98941 Chiropractic manipulative treatment, 3-4 spinal regions 679 47 $39

In context: peer comparison

Among 1 peers in Cottonwood Chiropractor, average services per provider: 679. This provider delivers 1.0× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Darrin Oilar's medical specialty?
Dr. Darrin Oilar practices Chiropractor in Cottonwood, CA.
Where does Dr. Darrin Oilar practice?
Dr. Darrin Oilar practices at 3435 Main St., Cottonwood, CA 96022. Office phone: 5303479500.
What is Dr. Darrin Oilar's NPI?
Dr. Darrin Oilar's National Provider Identifier (NPI) is 1023190048, issued by NPPES.
Does Dr. Darrin Oilar accept Medicare assignment?
Dr. Darrin Oilar does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Darrin Oilar commonly perform?
Top Medicare-reported procedures in 2023: Chiropractic manipulative treatment, 3-4 spinal regions (HCPCS 98941). Source: CMS Medicare Physician & Other Practitioners file.