JOHN MUIR PHYSICIAN NETWORK
NPI 1841407665
General Practice in Walnut Creek, CA
NPI Status: Active since May 17, 2007
Contact Information
1450 TREAT BLVD
SUITE 300
WALNUT CREEK, CA
ZIP 94597
Phone: (925) 296-9872
Fax: (925) 952-2845
- Organization
- General Practice
- CLIA Number: 05D2115346
- CLIA Cert. Type: Physician Office
- CLIA Exp. Date: 09-10-2027
About JOHN MUIR PHYSICIAN NETWORK
This page provides the complete NPI Profile along with additional information for John Muir Physician Network, a primary care provider established in Walnut Creek, California operating as a General Practice. The healthcare provider is registered in the NPI registry with number 1841407665 assigned on May 2007. The practitioner's primary taxonomy code is 208D00000X. The provider is registered as an organization and their NPI record was last updated one year ago. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The authorized official of this NPI record is Mr. Mike Thomas (President And Ceo)
- NPI
- 1841407665
- Provider Name
- JOHN MUIR PHYSICIAN NETWORK
- Entity Type
- Organization
- Location Address
- 1450 TREAT BLVD SUITE 300 WALNUT CREEK, CA 94597
- Location Phone
- (925) 296-9872
- Location Fax
- (925) 952-2845
- Mailing Address
- 1450 TREAT BLVD SUITE 300 WALNUT CREEK, CA 94597
- Mailing Phone
- (925) 952-2828
- Mailing Fax
- (925) 952-2845
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- No
- Enumeration Date
- 05-17-2007
- Last Update Date
- 03-20-2025
- Code Navigator
A primary care provider (PCP) like John Muir Physician Network sees people with common medical problems. The primary care provider might be a doctor, physician assistant, nurse practitioner or clinic that are usually involved in your long-term care. A PCP might provide preventive care, treat common medical conditions, identify urgent medical problems and refer you to specialists when necessary. Primary care is usually provided in an outpatient facility but if you are admitted to a hospital your PCP may assist in your care. The most common medical conditions seen by primary care providers are: hypertension, upper respiratory tract infections, depression or anxiety, back pain, arthritis, dermatitis, diabetes, urinary tract infections, etc .
Location Map
Specialty - Primary Taxonomy
The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.
- Classification
General Practice
- Taxonomy Code
- 208D00000X
- Type
- Allopathic & Osteopathic Physicians
- Taxonomy Description
- A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions. Source: National Uniform Claim Committee
Group Taxonomy 193400000X MULTIPLE SINGLE SPECIALTY GROUP
This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.
CLIA Information
The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:
- CLIA Number
- 05D2115346
- Facility Type
- Physician Office
- Certificate Effective Date
- September 11, 2025
- Certificate Expiration Date
- September 10, 2027
- Laboratory Director
- TANYA THREEWITT
- Certificate Type
- Certificate of Accreditation
- Certificate Type Description
- This is a CLIA certificate is issued to John Muir Physician Network on the basis of the laboratory's accreditation by an accreditation organization approved by CMS. This type of certificate is issued to a laboratories tha perform nonwaived (moderate and/or high complexity) testing.
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NPI NPI Number Validation
How NPI Validation Works
The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.
To verify the NPI 1841407665, we treat the final digit (5) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 65. The final step is to find the difference between that total and the next multiple of ten (70 - 65 = 5).
Digit-by-digit view
Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.
Step 1: Double every other digit from the right
Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 65 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
WALNUT CREEK, CA 94597
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1841407665, enumerated as an "organization" on May 17, 2007.
The provider is located at 1450 TREAT BLVD SUITE 300 WALNUT CREEK, CA 94597 and the phone number is (925) 296-9872.
General Practice with taxonomy code 208D00000X.
