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DR. GERARDO DUENAS CONTRERAS D.C.
NPI 1659441962
Chiropractor in Livermore, CA

Active since November 08, 2006Accepts Medicare Assignment
4200 EAST AVE, STE. B, LIVERMORE, CA 94550(925) 606-5490(925) 606-6012 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Gerardo Duenas Contreras D.c. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. GERARDO DUENAS CONTRERAS D.C. (NPI 1659441962) is an individual chiropractor in Livermore, California, licensed in California (DC28469) and active in the NPI registry since November 2006. He is a graduate of Life Chiropractic College - West (2002).

NPPES Registry Identity

NPI1659441962
Entity TypeIndividualMale
Primary Taxonomy111N00000X
Provider Legal NameDR. GERARDO DUENAS CONTRERASCredential: D.C.
Location Address4200 EAST AVE, STE. BLivermore, CA 94550-4945
Mailing Address4826 Lantana AveLivermore, CA 94551-1471 · (925) 373-6449
Phone(925) 606-5490
Fax(925) 606-6012
Sole ProprietorYes
Medical School CMSLife Chiropractic College - WestGraduated 2002
Enumeration DateNovember 8, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1659441962 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyChiropractorChiropractic Providers
Taxonomy Code111N00000X
License✔ Licensed in CA · DC28469
Definition
A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.
4200 EAST AVE, Livermore, CA 94550
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Gerardo Duenas Contreras D.c. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1658285010
PECOS Enrollment IDI20031118001193

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Chiropractic manipulative treatment, 3-4 spinal regions 98941
Chiropractic manipulative treatment for 3-4 spinal regions involves a trained professional applying controlled force to specific areas of your spine. This can help alleviate pain, improve physical function, and support your body's natural healing process.
210 services14 patients

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CONTRERAS CHIROPRACTIC INC
Chiropractor
4200 EAST AVE
LIVERMORE, CA 94550
Alameda County (925) 606-5490
DR. KLIFFORD TODD KAPUS DDS, MSD
Dentist (Orthodontics and Dentofacial Orthopedics)
4200 EAST AVE, SUITE #100
LIVERMORE, CA 94550
Alameda County (925) 443-3800

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gerardo Contreras's NPI number?

The NPI number for Gerardo Contreras is 1659441962. It was assigned to this individual provider in the NPPES registry on November 8, 2006.

Where is Gerardo Contreras located?

Gerardo Contreras practices at 4200 East Ave Ste. B, Livermore, CA 94550. The listed phone number is (925) 606-5490.

What is Gerardo Contreras's specialty?

The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.

Is Gerardo Contreras enrolled in Medicare?

Yes. Gerardo Contreras is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Gerardo Contreras was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.