John Muir Physician Network
NPI 1841407665 · General Practice 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 Physician Network is a General Practice Physician organization in Walnut Creek, CA (NPI 1841407665).
Provider details
- NPI number
- 1841407665
- Entity type
- Organization
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Mike Thomas, President and Ceo(925) 941-2100
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
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
Registry dates
- Enumerated
- 2007-05-17
- Last updated
- 2025-03-20
- Certified
- 2025-03-20
Frequently asked questions
- What is John Muir Physician Network's NPI number?
- John Muir Physician Network's National Provider Identifier (NPI) is 1841407665, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is John Muir Physician Network?
- John Muir Physician Network is classified in the NPPES registry as General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is John Muir Physician Network located?
- John Muir Physician Network's practice location on file with NPPES is 1450 Treat Blvd, Walnut Creek, CA 94597-2168.
- What is John Muir Physician Network's phone number?
- The practice phone number listed in the NPPES registry for John Muir Physician Network is (925) 296-9872.
- Does John Muir Physician Network accept Medicare?
- John Muir Physician Network 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 Physician Network?
- The authorized official listed on John Muir Physician Network's NPPES record is Mike Thomas, President and Ceo. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is John Muir Physician Network's NPI active?
- Yes — John Muir Physician Network's NPI (1841407665) is active in the NPPES registry as of the last update on 2025-03-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.