INFECTIOUS DISEASE DOCTORS MEDICAL GROUP APC
NPI 1134145055
Internal Medicine - Infectious Disease in Walnut Creek, CA
NPI Status: Active since July 14, 2006
Contact Information
365 LENNON LN
SUITE 200
WALNUT CREEK, CA
ZIP 94598
Phone: (925) 947-2334
Fax: (925) 947-5889
NPPES record last updated: May 8, 2017. Verified against the NPPES registry weekly; last sync: July 12, 2026.
- Organization
- Internal Medicine
- Infectious Disease
- CLIA Number: 05D2211409
- CLIA Cert. Type: Physician Office
- CLIA Exp. Date: 01-26-2027
About INFECTIOUS DISEASE DOCTORS MEDICAL GROUP APC
This page provides the complete NPI Profile along with additional information for Infectious Disease Doctors Medical Group Apc, an internist established in Walnut Creek, California operating as a Internal Medicine, focusing in infectious disease . The healthcare provider is registered in the NPI registry with number 1134145055 assigned on July 2006. The practitioner's primary taxonomy code is 207RI0200X. The provider is registered as an organization and their NPI record was last updated 9 years 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 Scott A Tozzi (Business Manager)
- NPI
- 1134145055
- Provider Name
- INFECTIOUS DISEASE DOCTORS MEDICAL GROUP APC
- Entity Type
- Organization
- Location Address
- 365 LENNON LN SUITE 200 WALNUT CREEK, CA 94598
- Location Phone
- (925) 947-2334
- Location Fax
- (925) 947-5889
- Mailing Address
- 365 LENNON LN SUITE 200 WALNUT CREEK, CA 94598
- Mailing Phone
- (925) 947-2334
- Mailing Fax
- (925) 947-5889
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- No
- Enumeration Date
- 07-14-2006
- Last Update Date
- 05-08-2017
- Code Navigator
An internist like Infectious Disease Doctors Medical Group Apc is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, 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
Internal Medicine Infectious Disease
- Taxonomy Code
- 207RI0200X
- Type
- Allopathic & Osteopathic Physicians
- Taxonomy Description
- An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
Group Taxonomy 193400000X 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.
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Additional Identifiers
The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.
| Identifier | Type / Code | Identifier State | Identifier Issuer |
|---|---|---|---|
| GR0077920 | MEDICAID (05) | CA | |
| 1134145055 | MEDICARE PIN (08) |
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
- 05D2211409
- Facility Type
- Physician Office
- Certificate Effective Date
- January 27, 2025
- Certificate Expiration Date
- January 26, 2027
- Laboratory Director
- BHAVNA MALIK
- Certificate Type
- Certificate of Waiver
- Certificate Type Description
- This CLIA certificate is issued to Infectious Disease Doctors Medical Group Apc to perform only waived tests. CLIA defines waived tests as simple tests with a low risk for an incorrect result. Waived tests include certain tests listed in CLIA regulations, tests cleared by the FDA for home use and tests approved by the FDA for waived status and that meet CLIA waiver criteria.
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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 1134145055, 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 45. The final step is to find the difference between that total and the next multiple of ten (50 - 45 = 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 45 is 50. The difference is the calculated check digit.
Other Providers at the Same Location
The following 19 providers are registered at the same or a nearby location.
WALNUT CREEK, CA 94598
WALNUT CREEK, CA 94598
WALNUT CREEK, CA 94598
WALNUT CREEK, CA 94598
WALNUT CREEK, CA 94598
WALNUT CREEK, CA 94598
WALNUT CREEK, CA 94598
WALNUT CREEK, CA 94598
WALNUT CREEK, CA 94598
WALNUT CREEK, CA 94598
WALNUT CREEK, CA 94598
WALNUT CREEK, CA 94598
WALNUT CREEK, CA 94598
WALNUT CREEK, CA 94598
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1134145055, enumerated as an "organization" on July 14, 2006.
The provider is located at 365 LENNON LN SUITE 200 WALNUT CREEK, CA 94598 and the phone number is (925) 947-2334.
Internal Medicine with taxonomy code 207RI0200X and a focus in Infectious Disease.
The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.
