JOHN MUIR MEDICAL CENTER WALNUT CREEK NON INVASI
NPI 1275753493
Internal Medicine - Cardiovascular Disease in Walnut Creek, CA

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

The NPI number for John Muir Health is 1275753493. It was assigned to this organization in the NPPES registry on April 30, 2007. The provider is doing business as John Muir Medical Center Walnut Creek Non Invasi.

Q: What is John Muir Health's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Q: When was this NPI record last updated?

The NPPES record for John Muir Health was last updated on January 11, 2016. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since April 30, 2007CLIA Certified · 2 labs

1601 YGNACIO VALLEY RD, WALNUT CREEK, CA 94598(925) 939-3000(925) 941-2236 Get Directions Write a Review

NPPES record last updated: January 11, 2016. Verified against the NPPES registry weekly; last sync: July 26, 2026.

On this page

About John Muir Medical Center Walnut Creek Non Invasi NPPES

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

JOHN MUIR MEDICAL CENTER WALNUT CREEK NON INVASI (NPI 1275753493) is a healthcare organization registered as a cardiovascular disease in Walnut Creek, California and active in the NPI registry since April 2007. The organization holds 2 active CLIA laboratory certificates and lists Joshua Leon Welch, Executive Director, as its authorized official.

NPPES Registry Identity

NPI1275753493

Entity TypeOrganization

Primary Taxonomy207RC0000X

Legal Business NameJOHN MUIR HEALTH

Location Address1601 YGNACIO VALLEY RDWalnut Creek, CA 94598-3122

Mailing Address1601 Ygnacio Valley RdWalnut Creek, CA 94598-3122 · (925) 939-3000 · Fax (925) 941-2236

Phone(925) 939-3000

Fax(925) 941-2236

Organization SubpartNo

Authorized OfficialJoshua Leon WelchExecutive Director · (925) 941-2279

Enumeration DateApril 30, 2007

Last NPPES UpdateJanuary 11, 2016

✔ NPI 1275753493 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RC0000X

Definition

An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.

1601 YGNACIO VALLEY RD, Walnut Creek, CA 94598

Open in Google Maps ↗

Other Names 1

Doing Business AsJohn Muir Medical Center Walnut Creek Non Invasi

Other Identifiers 3

Medicare ID-Type UnspecifiedZZZ93896ZCA · Medicare Prov Number

OtherZZZA0703ZCA · Bl Shield Provider Number

Other050180CA · Blue Cross Prov Number

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

CLIA Laboratory Certificates CMS CLIA 2

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 05D0707203

John Muir Medical Center Walnut Creek Campus Pulmonary Function Laboratory · Walnut Creek, CA

Active · expires Nov 30, 2027

CLIA Number05D0707203

Laboratory TypeHospital

Certificate Effective DateDecember 1, 2025

Certificate Expiration DateNovember 30, 2027

Laboratory DirectorMinh H. Nguyen

Laboratory Phone(510) 939-3000

Laboratory LocationJohn Muir Medical Center Walnut Creek Campus Pulmonary Function Laboratory1601 Ygnacio Valley Rd, Walnut Creek, CA 94598

CLIA data matches this NPI record on: Address

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 Accreditation 05D0691746

John Muir Medical Center Walnut Creek - Point Of Care Testing · Walnut Creek, CA

Active · expires Dec 1, 2026

CLIA Number05D0691746

Laboratory TypeHospital

Certificate Effective DateDecember 2, 2024

Certificate Expiration DateDecember 1, 2026

Laboratory DirectorRisha Ramdall

Laboratory Phone(925) 941-4197

Laboratory LocationJohn Muir Medical Center Walnut Creek - Point Of Care Testing1601 Ygnacio Valley Road, Walnut Creek, CA 94598

CLIA data matches this NPI record on: Address

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.

Leave this field empty

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