DARRELL FITZGERALD CPT 1
NPI 1679442362
Clinical Medical Laboratory in Carmichael, CA
NPI Status: Active since November 01, 2025
Contact Information
4444 MANZANITA AVE STE 6
CARMICHAEL, CA
ZIP 95608
Phone: (916) 532-1468
Fax: (916) 532-1468
- Individual
- Male
- Clinical Medical Laboratory
About DARRELL FITZGERALD
This page provides the complete NPI Profile along with additional information for Darrell Fitzgerald, a provider established in Carmichael, California with a medical specialization in Clinical Medical Laboratory. The healthcare provider is registered in the NPI registry with number 1679442362 assigned on November 2025. The practitioner's primary taxonomy code is 291U00000X with license number 00043309 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.
- NPI
- 1679442362
- Provider Name
- DARRELL FITZGERALD CPT 1
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 4444 MANZANITA AVE STE 6 CARMICHAEL, CA 95608
- Location Phone
- (916) 532-1468
- Location Fax
- (916) 532-1468
- Mailing Address
- 4444 MANZANITA AVE STE 6 CARMICHAEL, CA 95608
- Mailing Phone
- (916) 532-1468
- Mailing Fax
- (916) 532-1468
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 11-01-2025
- Last Update Date
- 11-01-2025
- Code Navigator
Providers like Darrell Fitzgerald work at healthcare facilities that may perform a wide range of laboratory procedures, assisted by doctors and medical technologists. Laboratories can be categorized according to their function as common diagnostic labs or specialty labs that conduct specialized or confirmatory tests. Different clinical laboratories could specialize in clinical chemistry, clinical microbiology, hematology, serology, clinical microscopy, cytopathology, molecular biology, or public health. Please inquire directly with this provider to confirm their test menu.
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
Clinical Medical Laboratory
- Taxonomy Code
- 291U00000X
- Type
- Laboratories
- License No.
- 00043309
- License State
- CA
- Taxonomy Description
- (1) A clinical laboratory is a facility for the biological, microbiological, serological, chemical, immunohematological, hematological, biophysical, cytological, pathological, or other examination of materials derived from the human body for the purpose of providing information for the diagnosis, prevention, or treatment of any disease or impairment of, human beings. These examinations also include procedures to determine, measure, or otherwise describe the presence or absence of various substances or organisms in the body. Facilities only collecting or preparing specimens (or both) or only serving as a mailing service and not performing testing are not considered clinical laboratories. (2) Any facility that examines materials from the human body for purposes of providing information for the diagnosis, prevention, or treatment of any disease or impairment of, or the assessment of, the health of human beings. Typical divisions of a clinical laboratory include hematology, cytology, bacteriology, histology, biochemistry, medical toxicology, and serology.
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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 1679442362, we treat the final digit (2) 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 68. The final step is to find the difference between that total and the next multiple of ten (70 - 68 = 2).
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 68 is 70. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1679442362, enumerated as an "individual" on November 01, 2025.
The provider is located at 4444 MANZANITA AVE STE 6 CARMICHAEL, CA 95608 and the phone number is (916) 532-1468.
Clinical Medical Laboratory with taxonomy code 291U00000X.
