John Muir Magnetic Imaging Center
NPI 1235184110 · Diagnostic Radiology Physician · Walnut Creek, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Muir Magnetic Imaging Center is a Diagnostic Radiology Physician organization in Walnut Creek, CA (NPI 1235184110).
Provider details
- NPI number
- 1235184110
- Entity type
- Organization
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Ronald Chan, Chairman(925) 296-7156
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (2)
- 2410 High School AveConcord, CA 94520-1829Phone: (925) 687-5600
- 177 La Casa ViaWalnut Creek, CA 94598-6101Phone: (925) 295-1545
Registry dates
- Enumerated
- 2006-05-22
- Last updated
- 2026-03-18
- Certified
- 2026-03-18
Frequently asked questions
- What is John Muir Magnetic Imaging Center's NPI number?
- John Muir Magnetic Imaging Center's National Provider Identifier (NPI) is 1235184110, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is John Muir Magnetic Imaging Center?
- John Muir Magnetic Imaging Center is classified in the NPPES registry as Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is John Muir Magnetic Imaging Center located?
- John Muir Magnetic Imaging Center's practice location on file with NPPES is 1601 Ygnacio Valley Rd, Walnut Creek, CA 94598-3122.
- What is John Muir Magnetic Imaging Center's phone number?
- The practice phone number listed in the NPPES registry for John Muir Magnetic Imaging Center is (925) 296-7156.
- Does John Muir Magnetic Imaging Center accept Medicare?
- John Muir Magnetic Imaging Center is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for John Muir Magnetic Imaging Center?
- The authorized official listed on John Muir Magnetic Imaging Center's NPPES record is Ronald Chan, Chairman. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is John Muir Magnetic Imaging Center's NPI active?
- Yes — John Muir Magnetic Imaging Center's NPI (1235184110) is active in the NPPES registry as of the last update on 2026-03-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.