JOHN MUIR MAGNETIC IMAGING CENTER
NPI 1235184110
Radiology - Diagnostic Radiology in Walnut Creek, CA

Q: What is John Muir Magnetic Imaging Center's NPI number?

The NPI number for John Muir Magnetic Imaging Center is 1235184110. It was assigned to this organization in the NPPES registry on May 22, 2006.

Q: What is John Muir Magnetic Imaging Center's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Active since May 22, 2006

1601 YGNACIO VALLEY RD, WALNUT CREEK, CA 94598(925) 296-7156(925) 296-7174 Get Directions Write a Review

NPPES record last updated: March 18, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Mar 18, 2026, Oct 2, 2019, Oct 26, 2018 (3 updates tracked since 2018).

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About John Muir Magnetic Imaging Center NPPES

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

JOHN MUIR MAGNETIC IMAGING CENTER (NPI 1235184110) is a healthcare organization registered as a diagnostic radiology in Walnut Creek, California and active in the NPI registry since May 2006. The organization maintains 2 additional practice locations and lists Ronald Chan, Chairman, as its authorized official.

NPPES Registry Identity

NPI1235184110

Entity TypeOrganization

Primary Taxonomy2085R0202X

Legal Business NameJOHN MUIR MAGNETIC IMAGING CENTER

Location Address1601 YGNACIO VALLEY RDWalnut Creek, CA 94598-3122

Mailing Address2125 Oak Grove Rd, Suite 200Walnut Creek, CA 94598-2536 · (925) 296-7156 · Fax (925) 296-7174

Phone(925) 296-7156

Fax(925) 296-7174

Organization SubpartNo

Authorized OfficialRonald ChanChairman · (925) 296-7156

Enumeration DateMay 22, 2006

Last NPPES UpdateMarch 18, 20263 updates tracked since enumeration

NPPES CertifiedMarch 18, 2026

✔ NPI 1235184110 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0202X

Definition

A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

1601 YGNACIO VALLEY RD, Walnut Creek, CA 94598

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Secondary Practice Locations 2

Location 1177 La Casa ViaWalnut Creek, CA 94598-6101 · Phone (925) 295-1545

Location 22410 High School AveConcord, CA 94520-1829 · Phone (925) 687-5600

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Other Providers at the Same Location NPPES 20

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

MALCOLM C JOHNSON MD

Emergency Medicine