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MARK ALLEN O'BRIEN DC
NPI 1770180895
Chiropractor in El Dorado Hills, CA

Active since October 01, 2020
350 GREEN VALLEY RD, EL DORADO HILLS, CA 95762(570) 690-5629 Get Directions Write a Review

NPPES record last updated: October 1, 2020. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Mark Allen O'brien Dc NPPES

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

MARK ALLEN O'BRIEN DC (NPI 1770180895) is an individual chiropractor in El Dorado Hills, California, licensed in California (34782) and active in the NPI registry since October 2020.

NPPES Registry Identity

NPI1770180895
Entity TypeIndividualMale
Primary Taxonomy111N00000X
Provider Legal NameMARK ALLEN O'BRIENCredential: DC
Location Address350 GREEN VALLEY RDEl Dorado Hills, CA 95762-3927
Mailing Address1013 Geneva CtEl Dorado Hills, CA 95762-4003 · (570) 690-5629
Phone(570) 690-5629
Sole ProprietorYes
Enumeration DateOctober 1, 2020
NPPES CertifiedOctober 1, 2020
✔ NPI 1770180895 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyChiropractorChiropractic Providers
Taxonomy Code111N00000X
License✔ Licensed in CA · 34782
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.
Also ListedChiropractor · Independent Medical ExaminerTaxonomy 111NI0013X · License 35782 (CA)
Also ListedChiropractor · Occupational HealthTaxonomy 111NX0100X · License 34782 (CA)
350 GREEN VALLEY RD, El Dorado Hills, CA 95762
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Providence Health Plan.Insurance ›

Other Providers at the Same Location NPPES 5

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

AMBROSE CHIROPRACTIC INC.
Chiropractor (Neurology)
350 GREEN VALLEY RD
EL DORADO HILLS, CA 95762
El Dorado County (916) 933-6700
AFTON L ARNOLD
Specialist
350 GREEN VALLEY RD
EL DORADO HILLS, CA 95762
El Dorado County (530) 933-4700
DR. JOSEPH R. AMBROSE DC
Nurse Practitioner
350 GREEN VALLEY RD
EL DORADO HILLS, CA 95762
El Dorado County (916) 933-6700
DR. THOMAS EDWARD JOHNSON DC, IDE
Chiropractor (Occupational Health)
350 GREEN VALLEY RD
EL DORADO HILLS, CA 95762
El Dorado County (916) 933-6700
AMBROSE INJURY AND WELLNESS, A NURSING CORP
Nurse Practitioner (Primary Care)
350 GREEN VALLEY RD
EL DORADO HILLS, CA 95762
El Dorado County (916) 933-6700

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 Mark O'brien's NPI number?

The NPI number for Mark O'brien is 1770180895. It was assigned to this individual provider in the NPPES registry on October 1, 2020.

Where is Mark O'brien located?

Mark O'brien practices at 350 Green Valley Rd, El Dorado Hills, CA 95762. The listed phone number is (570) 690-5629.

What is Mark O'brien's specialty?

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

What insurance does Mark O'brien accept?

Health plans from Providence Health Plan list Mark O'brien as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Mark O'brien was last updated on October 1, 2020. NPI Profile syncs with the weekly NPPES data releases published by CMS.