NPIMap

Organization Active NPI

John Muir Health

Doing business as John Muir Health Medical Center, Concord Campus

  • General Acute Care Hospital
  • Concord, CA
National Provider Identifier
1801821376
Registry record updated Aug 28, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
General Acute Care HospitalTaxonomy code 282N00000X
License
140000128 Issued in CA
Legal business name
JOHN MUIR HEALTH
Doing business as
John Muir Health Medical Center, Concord Campus
Practice address
2540 East St
Concord, CA 94520-1906
Phone
(925) 682-8200
Fax
(925) 674-2009
NPI assigned
Jul 12, 2006
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
Michael Thomas
Title
Ceo
Phone
(925) 941-2100

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
General Acute Care Hospital 282N00000X 140000128 CA Primary

Addresses

Primary practice location

2540 East St
Concord, CA 94520-1906

Mailing address

1400 Treat Blvd
Walnut Creek, CA 94597-2142
Phone (925) 939-3000

Other identifiers 4

IdentifierTypeStateIssuer
ZZR00496GMedicaidCA
ZZZC0702ZOtherCABLUE SHIELD OF CALIFORNIA
05496AOtherCABX OF CALIFORNIA
HSP40496GMedicaidCA

Other names 2

  • John Muir Health Medical Center, Concord Campus Doing business as
  • John Muir Health - Concord Medical Center Other name

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20071212000683 CA Part A Provider - Hospital 9537197025 Practice locations: Concord, CA; Walnut Creek, CA

NPI to CCN mapping 1

The Medicare certification numbers (CCNs) connected to NPI 1801821376. Details of each certification follow.

Hospital certification: CCN 050496

Legal name
JOHN MUIR HEALTH
Doing business as
JOHN MUIR MEDICAL CENTER - CONCORD CAMPUS
Certification status
Active
Provider type (POS)
Hospital – Short-term
Participating since
Jul 1, 1966
Last certification
Dec 11, 2009
Beds
303
Ownership / control type
Private (not for profit)
Organization structure
CorporationNon-profit
Incorporated
Feb 28, 1958 in CA
Enrollment address
2540 East St
Concord, CA 94520-1906
Main/Primary Hospital Location
Hospital subgroups
General, Acute care

Other NPIs with the same Medicare PAC ID 3

NPIs whose Medicare enrollments share a PECOS associate control ID (the same enrolled entity).

Care Compare: Hospital

Medicare Care Compare
Listed as
John Muir Medical Center - Concord CampusCCN 050496 · All quality measures
Overall star rating
4 of 5
Type
Acute Care Hospitals
Ownership
Voluntary non-profit - Private
Medicare certification status
ActiveFrom the Provider of Services file
Emergency services
Yes

National Provider Directory

National Provider Directory
Tax ID family
John Muir Health7 organizations share this tax ID, including this one

Other organizations with this tax ID 6

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

Member of 1

Organizations this organization is a member of, according to the National Provider Directory.

Member organizations 1

Organizations listed as members of this organization in the National Provider Directory.

Locations

177 La Casa Via
Ste 300
Walnut Creek, CA 94598
Phone (925) 692-5647

Ownership & related parties

All disclosed owners & managing parties 24

As disclosed on the Medicare enrollment (CMS All Owners files). Individuals include officers, directors and managing employees, who may not hold ownership.

NameRoleSinceShare
Vivian Wing Individual Corporate OfficerOfficer Jan 1, 2023
Jack Thompson Individual Corporate Officer Jan 1, 2019
Claudia Matthews Individual W-2 Managing EmployeeCredentialing Supervisor Oct 1, 2022
Ted Wang Individual Corporate OfficerChief Financial Officer Jan 6, 2025
Steven a Green Individual Corporate OfficerBoard Director Jan 1, 2025
Kathleen Villanueva Individual W-2 Managing EmployeeCredentialing Coordinator May 9, 2023
Carolyn S Lacey Individual Corporate OfficerOfficer Jan 1, 2023
Fatima Angeles Individual Corporate OfficerOfficer Jan 1, 2023
Johannes Peters Individual Corporate Officer Jan 1, 2018
Tracy Porter Individual Corporate DirectorBoard Director Jan 1, 2025
Kathleen Odne Individual Corporate OfficerVice Chair Jan 1, 2015
Craig Leach Individual Corporate DirectorBoard Director Jan 1, 2025
Peter Wilson Individual Corporate Director Jun 1, 2020
Mark P Musco Individual Corporate DirectorBoard Member Sep 1, 2013
Roger Bailey Individual Corporate Officer Jan 1, 2019
Ravinder S. Hundal Individual Corporate DirectorBoard Member Sep 1, 2013
Anne Grodin Individual Corporate Officer Jan 1, 2018
Michael Thomas Individual Corporate OfficerCeo Oct 1, 2022
John Pancoast Harris Individual Corporate Officer Jan 1, 2018
Chinnavuth de Monteiro Individual Corporate OfficerOfficer Jan 1, 2023
Lisa a Sander Individual W-2 Managing Employee Jan 3, 2016
Laura Gallagher Individual Corporate OfficerOfficer Jan 1, 2023
John Muir Health Organization, Walnut Creek, CA Non-profit Operational/Managerial Control Sep 26, 2008 100%
John Sayres Individual Corporate OfficerSecretary Jan 1, 2018

Owners & managing parties with NPI records 9

Owners and managing parties disclosed on this facility’s Medicare enrollment that are themselves Medicare-enrolled.

Practitioners & affiliated clinicians

Practitioners 647

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 647

Affiliated clinicians 949

Clinicians who list this facility as an affiliation in Medicare Care Compare.

View all 949

NPI Registry JSON

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

{
    "created_epoch": "1152662400000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1787875200000",
    "number": "1801821376",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1400 TREAT BLVD",
            "city": "WALNUT CREEK",
            "state": "CA",
            "postal_code": "945972142",
            "telephone_number": "925-939-3000",
            "fax_number": "925-941-2236"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2540 EAST ST",
            "city": "CONCORD",
            "state": "CA",
            "postal_code": "945201906",
            "telephone_number": "925-682-8200",
            "fax_number": "925-674-2009"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "JOHN MUIR HEALTH",
        "organizational_subpart": "NO",
        "enumeration_date": "2006-07-12",
        "last_updated": "2026-08-28",
        "certification_date": "2026-08-28",
        "status": "A",
        "authorized_official_last_name": "THOMAS",
        "authorized_official_first_name": "MICHAEL",
        "authorized_official_title_or_position": "CEO",
        "authorized_official_telephone_number": "925-941-2100"
    },
    "taxonomies": [
        {
            "code": "282N00000X",
            "taxonomy_group": "",
            "desc": "General Acute Care Hospital",
            "state": "CA",
            "license": "140000128",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "ZZR00496G",
            "state": "CA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BLUE SHIELD OF CALIFORNIA",
            "identifier": "ZZZC0702Z",
            "state": "CA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BX OF CALIFORNIA",
            "identifier": "05496A",
            "state": "CA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "HSP40496G",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "John Muir Health Medical Center, Concord Campus",
            "code": "3",
            "type": "Doing Business As"
        },
        {
            "organization_name": "John Muir Health Medical Center, Concord Campus",
            "code": "3",
            "type": "Doing Business As"
        },
        {
            "organization_name": "John Muir Health - Concord Medical Center",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

Other providers in Concord, CA

Sources for this page

Verify at the official NPI Registry.