NPIMap

Organization Active NPI

John Muir Physician Network

  • General Practice Physician
  • Walnut Creek, CA
National Provider Identifier
1841407665
Registry record updated Aug 28, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
General Practice PhysicianTaxonomy code 208D00000X
Legal business name
JOHN MUIR PHYSICIAN NETWORK
Practice address
1450 Treat Blvd
Suite 300
Walnut Creek, CA 94597-2168
Phone
(925) 296-9872
Fax
(925) 952-2845
NPI assigned
May 17, 2007
Last updated
Aug 28, 2026By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Aug 28, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Authorized official

Name
Mr. Mike Thomas
Title
President and Ceo
Phone
(925) 941-2100

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
General Practice Physician 208D00000X NU Primary

Addresses

Primary practice location

1450 Treat Blvd
Suite 300
Walnut Creek, CA 94597-2168

Mailing address

1450 Treat Blvd Ste 300
Walnut Creek, CA 94597-2168
Phone (925) 952-2828

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20031226000143 CA Part B Supplier - Clinic/Group Practice 6608789813 Receives reassigned benefits from 666 practitioners
46 other NPIs on this enrollment

Other NPIs on the same Medicare enrollment 1

NPIs listed together on one Medicare enrollment, typically parts of the same organization.

Laboratory certificates & supplier records

Derived by NPIMap

These CMS records do not include an NPI. They are shown because their name and street address match this provider’s.

CLIA laboratory certificates

CLIA numberLaboratoryCertificateExpires
05D2115346John Muir Physician Network1450 Treat Blvd, Ste 160, Walnut Creek, CA 94597AccreditationSep 10, 2027

National Provider Directory

National Provider Directory
Tax ID family
The Permanente Medical26 organizations share this tax ID, including this one

Other organizations with this tax ID 24

Organizations that report the same tax identification number in the National Provider Directory.

View all 24

Locations (25 of 74)

1505 Saint Alphonsus Way
Alamo, CA 94507
Phone (925) 837-4225

3440 Hillcrest Ave
Ste 150
Antioch, CA 94531
Phone (925) 779-1331

3100 San Pablo Ave
#430
Berkeley, CA 94702
Phone (510) 985-5200

3100 San Pablo Ave
Ste 300
Berkeley, CA 94702
Phone (510) 985-5000

3100 San Pablo Ave
Ste 310
Berkeley, CA 94702
Phone (510) 985-5020

3100 San Pablo Ave
Ste 320
Berkeley, CA 94702
Phone (510) 985-5060

3100 San Pablo Ave
Ste 330
Berkeley, CA 94702
Phone (510) 420-8000

3100 San Pablo Ave
Ste 400
Berkeley, CA 94702
Phone (510) 985-5200

3100 San Pablo Ave
Ste 410
Berkeley, CA 94702
Phone (510) 985-5200

3100 San Pablo Ave
Ste 420
Berkeley, CA 94702
Phone (415) 353-2800

2400 Balfour Rd
Ste 100
Brentwood, CA 94513
Phone (925) 308-8122

2400 Balfour Rd
Ste 201
Brentwood, CA 94513
Phone (925) 308-8112

2400 Balfour Rd
Ste 229
Brentwood, CA 94513
Phone (925) 308-8113

350 John Muir Pkwy
Ste 250
Brentwood, CA 94513
Phone (925) 308-8160

350 John Muir Pkwy
Ste 285
Brentwood, CA 94513
Phone (925) 513-2646

2700 Grant St
Ste 200
Concord, CA 94520
Phone (925) 674-2609

2700 Grant St
Ste 309
Concord, CA 94520
Phone (925) 685-7598

4080 Port Chicago Hwy
Rm 103
Concord, CA 94520
Phone (925) 674-4265

5161 Clayton Rd
Ste F
Concord, CA 94521
Phone (925) 609-8282

3466 Mt Diablo Blvd
Ste C104
Lafayette, CA 94549
Phone (925) 284-4442

3318 Elm St
Ste 1
Oakland, CA 94609
Phone (510) 985-3620

140 Brookwood Rd
Ste 200
Orinda, CA 94563
Phone (925) 254-9080

140 Brookwood Rd
Ste 201
Orinda, CA 94563
Phone (925) 254-9090

3 Altarinda Rd
Ste 200
Orinda, CA 94563
Phone (925) 254-9500

3 Altarinda Rd
Ste 300
Orinda, CA 94563
Phone (925) 254-9500

Networks

  • BSC 65 PLUS INDIVIDUAL MAPDPlans: Blue Shield 65 Plus (HMO) (H0504-015-000, H0504); Blue Shield 65 Plus (HMO) (H0504-039-000, H0504); Blue Shield 65 Plus Plan 2 (HMO) (H0504-021-000, H0504); Blue Shield Inspire (HMO) (H0504-041-000, H0504); Blue Shield 65 Plus (HMO) (H0504-038-000, H0504); Blue Shield Inspire (HMO) (H0504-047-000, H0504); Blue Shield 65 Plus (HMO) (H0504-026-000, H0504); Blue Shield Advantage (HMO) (H0504-050-000, H0504); Blue Shield AdvantageOptimum Plan (HMO) (H5928-004-000, H5928); Blue Shield Inspire (HMO) (H0504-043-000, H0504)…

Ownership & related parties

Subparts reporting this organization as parent 1

Organizations that report themselves as subparts in NPPES and name this organization, in the same state, as their parent.

Practitioners & affiliated clinicians

Practitioners 836

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

View all 836

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1179360000000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1787875200000",
    "number": "1841407665",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1450 TREAT BLVD STE 300",
            "city": "WALNUT CREEK",
            "state": "CA",
            "postal_code": "945972168",
            "telephone_number": "925-952-2828",
            "fax_number": "925-952-2845"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1450 TREAT BLVD",
            "address_2": "SUITE 300",
            "city": "WALNUT CREEK",
            "state": "CA",
            "postal_code": "945972168",
            "telephone_number": "925-296-9872",
            "fax_number": "925-952-2845"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "JOHN MUIR PHYSICIAN NETWORK",
        "organizational_subpart": "NO",
        "enumeration_date": "2007-05-17",
        "last_updated": "2026-08-28",
        "certification_date": "2026-08-28",
        "status": "A",
        "authorized_official_last_name": "THOMAS",
        "authorized_official_first_name": "MIKE",
        "authorized_official_title_or_position": "PRESIDENT AND CEO",
        "authorized_official_telephone_number": "925-941-2100",
        "authorized_official_name_prefix": "Mr."
    },
    "taxonomies": [
        {
            "code": "208D00000X",
            "taxonomy_group": "",
            "desc": "General Practice",
            "state": "NU",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Walnut Creek, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 28, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.