JOHN MUIR HEALTH
NPI 1043368012
Pharmacy - Institutional Pharmacy in Walnut Creek, CA

Q: What is John Muir Health's NPI number?

The NPI number for John Muir Health is 1043368012. It was assigned to this organization in the NPPES registry on January 8, 2007. The provider is doing business as John Muir Medical Center.

Q: What is John Muir Health's specialty?

The primary specialty registered for this NPI is Pharmacy, specializing in Institutional Pharmacy, with taxonomy code 3336I0012X.

Q: When was this NPI record last updated?

The NPPES record for John Muir Health was last updated on March 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since January 08, 2007CLIA Certified · 4 labs

1601 YGNACIO VALLEY RD, WALNUT CREEK, CA 94598(510) 947-5323(925) 947-3290 Get Directions Write a Review

NPPES record last updated: March 7, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Mar 7, 2025, Jan 5, 2024, Sep 13, 2016 (3 updates tracked since 2016).

On this page

About John Muir Health NPPES

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

JOHN MUIR HEALTH (NPI 1043368012), doing business as John Muir Medical Center, is a healthcare organization registered as an institutional pharmacy in Walnut Creek, California and active in the NPI registry since January 2007. The organization holds 4 active CLIA laboratory certificates and lists Michael Thomas, Ceo, as its authorized official.

NPPES Registry Identity

NPI1043368012

Entity TypeOrganization

Primary Taxonomy3336I0012X

Legal Business NameJOHN MUIR HEALTH

Location Address1601 YGNACIO VALLEY RDWalnut Creek, CA 94598-3122

Mailing Address1601 Ygnacio Valley RdWalnut Creek, CA 94598-3122 · (510) 947-5323 · Fax (925) 947-3290

Phone(510) 947-5323

Fax(925) 947-3290

Organization SubpartNo

Authorized OfficialMichael ThomasCeo · (925) 941-2100

Enumeration DateJanuary 8, 2007

Last NPPES UpdateMarch 7, 20253 updates tracked since enumeration

NPPES CertifiedMarch 7, 2025

✔ NPI 1043368012 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPharmacy · Institutional PharmacySuppliers

Taxonomy Code3336I0012X

License✔ Licensed in CA · HSP41346

Definition

A pharmacy in a hospital (inpatient) or institution used by pharmacists for the compounding and delivery of medicinal preparations to be administered to the patient by nursing or other authorized personnel. Institutional Pharmacies also counsel patients and caregivers; administer vaccinations; and provide other professional services associated with pharmaceutical care such as health screenings, consultative services with other health care providers, collaborative practice, disease state management, and education classes.

1601 YGNACIO VALLEY RD, Walnut Creek, CA 94598

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Other Names 1

Doing Business AsJohn Muir Medical Center

Other Identifiers 1

Other1996959Pk

CLIA Laboratory Certificates CMS CLIA 4

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Accreditation 05D0680025

John Muir Health - Walnut Creek Medical Center - Clinical Lab · Walnut Creek, CA

Active · expires Feb 27, 2027

CLIA Number05D0680025

Laboratory TypeHospital

Certificate Effective DateFebruary 28, 2025

Certificate Expiration DateFebruary 27, 2027

Laboratory DirectorDr. Nicholas P. Byrne

Laboratory Phone(925) 941-7966

Laboratory LocationJohn Muir Health - Walnut Creek Medical Center - Clinical Lab1601 Ygnacio Valley Road, Walnut Creek, CA 94598

CLIA data matches this NPI record on: Address Name

This is a certificate that is issued to a laboratory on the basis of the laboratory's accreditation by an accreditation organization approved by CMS.

Certificate of Waiver 05D2294250

John Muir Health - Concord Medical Center - Specialty Oncology · Walnut Creek, CA

Active · expires Nov 20, 2027

CLIA Number05D2294250

Laboratory TypeOutpatient Specialty Clin

Certificate Effective DateNovember 21, 2025

Certificate Expiration DateNovember 20, 2027

Laboratory DirectorRebecca Spies

Laboratory Phone(925) 937-7740

Laboratory LocationJohn Muir Health - Concord Medical Center - Specialty Oncology177 La Casa Via Suite # 200, Walnut Creek, CA 94598

CLIA data matches this NPI record on: Name

This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 05D2291427

John Muir Health Walnut Creek Medical Center Imaging · Walnut Creek, CA

Active · expires Oct 9, 2027

CLIA Number05D2291427

Laboratory TypeOutpatient Specialty Clin

Certificate Effective DateOctober 10, 2025

Certificate Expiration DateOctober 9, 2027

Laboratory DirectorDennis Hwang

Laboratory Phone(925) 435-1105

Laboratory LocationJohn Muir Health Walnut Creek Medical Center Imaging177 La Casa Via Ste 100, Walnut Creek, CA 94598

CLIA data matches this NPI record on: Name

This certificate is issued to a laboratory to perform only waived tests.

Certificate of Accreditation 05D0985235

John Muir Health Concord Medical Center - Oncology Lab · Walnut Creek, CA

Active · expires Sep 17, 2027

CLIA Number05D0985235

Laboratory TypeOutpatient Specialty Lab

Certificate Effective DateSeptember 18, 2025

Certificate Expiration DateSeptember 17, 2027

Laboratory DirectorDr. Rebecca Spies

Laboratory Phone(925) 692-5616

Laboratory LocationJohn Muir Health Concord Medical Center - Oncology Lab177 La Casa Via, Ste 370, Walnut Creek, CA 94598

CLIA data matches this NPI record on: Name

This is a certificate that is issued to a laboratory on the basis of the laboratory's accreditation by an accreditation organization approved by CMS.

Inpatient Rehabilitation Quality CMS Care Compare

Quality measures, patient outcomes and conditions treated for John Muir Medical Center (CMS certification number 05T180), from CMS Care Compare.

John Muir Medical Center

Inpatient rehabilitation facility · Walnut Creek, CA

OwnershipNon-profit

CMS Certification Number05T180

Medicare-Certified SinceJanuary 5, 1986

Location1601 Ygnacio Valley RoadWalnut Creek, CA 94598

Phone(925) 947-5252

Rehabilitation unit within a hospital

Conditions Treated

Medicare patient stays by the condition that brought the patient to rehabilitation

Stroke

137

patient stays

Spinal cord disease or condition (non-traumatic)

patient stays

Brain disease or condition (non-traumatic)

patient stays

Brain injury (traumatic)

patient stays

Hip or knee replacement, amputation or other bone or joint condition

patient stays

Hip or femur fracture

patient stays

All other conditions

Less than 11 patient stays

Nervous system disorder (excluding stroke)

Less than 11 patient stays

Spinal cord injury (traumatic)

Less than 11 patient stays

Counts reflect Medicare patient stays reported to CMS. CMS reports counts under 11 as "Less than 11" to protect patient privacy.

Quality Measures

Medications reviewed, with follow-up when issues were found

Drug Regimen Review · 347 patient stays

99.7%

Patients given a current list of their medications at discharge

Transfer of Health Information to the Patient · 334 patient stays

99.7%

Patients who meet or exceed the self-care ability expected for their condition at discharge

Discharge Self-Care Score · 296 patient stays

34.8%

Patients who meet or exceed the mobility expected for their condition at discharge

Discharge Mobility Score · 296 patient stays

39.5%

Patients who meet or exceed the overall function expected at discharge

Discharge Function Score · 296 patient stays

37.5%

Patients who experienced one or more falls with major injury during their stay

347 patient stays · Lower rates are better for this measure.

Patients with pressure ulcers or injuries that are new or worsened

Risk-adjusted rate · 346 patient stays · observed rate 0% · Lower rates are better for this measure.

Healthcare workers given the influenza vaccine

61 healthcare workers

59%

Healthcare workers up to date on COVID-19 vaccination

61 healthcare workers

1.6%

Clostridioides difficile (C. diff) infections

2 observed infections · 3.273 predicted · 6,343 patient days

0.611

standardized infection ratio

No Different than the National Benchmark

Measures are reported under the CMS Inpatient Rehabilitation Facility Quality Reporting Program. Reporting periods vary by measure (October 2021 to December 2023). Measures without current CMS data are not shown.

Discharge, Readmission & Medicare Spending

Patients discharged to home or the community

306 of 391 patient stays · observed rate 78.26%

72.87%

risk-standardized rate

Better than the National Rate

Potentially preventable readmissions within 30 days after discharge

10 readmissions of 362 patient stays · observed rate 2.76% · Lower rates are better for this measure.

7.74%

risk-standardized rate

No Different than the National Rate

Potentially preventable readmissions during the rehabilitation stay

11 readmissions of 401 patient stays · observed rate 2.74% · Lower rates are better for this measure.

4.39%

risk-standardized rate

No Different than the National Rate

Medicare spending per episode of care

1.00 = national average per episode of care · based on 358 episodes

0.91

spending ratio

Risk-standardized rates account for differences in patient condition mix. Comparison labels are assigned by CMS.

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