JUSTIN NONE TOLSMA CCP
NPI 1659228302
Perfusionist in Mountain View, CA
NPI Status: Active since March 12, 2026
Contact Information
2500 GRANT RD
MOUNTAIN VIEW, CA
ZIP 94040
Phone: (650) 940-7000
- Individual
- Male
- Perfusionist
About JUSTIN TOLSMA
This page provides the complete NPI Profile along with additional information for Justin Tolsma, a provider established in Mountain View, California with a medical specialization in Perfusionist. The healthcare provider is registered in the NPI registry with number 1659228302 assigned on March 2026. The practitioner's primary taxonomy code is 242T00000X. The provider is registered as an individual and his NPI record was last updated March 2026.
- NPI
- 1659228302
- Provider Name
- JUSTIN NONE TOLSMA CCP
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 2500 GRANT RD MOUNTAIN VIEW, CA 94040
- Location Phone
- (650) 940-7000
- Mailing Address
- 1924 PELHAM AVE APT 101 LOS ANGELES, CA 90025
- Mailing Phone
- (949) 414-3636
- Is Sole Proprietor?
- No
- Enumeration Date
- 03-12-2026
- Last Update Date
- 03-12-2026
- Code Navigator
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
Perfusionist
- Taxonomy Code
- 242T00000X
- Type
- Technologists, Technicians & Other Technical Service Providers
- Taxonomy Description
- A perfusionist operates extracorporeal circulation and autotransfusion equipment during any medical situation where it is necessary to support or temporarily replace the patient's circulatory or respiratory function. The perfusionist is knowledgeable concerning the variety of equipment available to perform extracorporeal circulation functions and is responsible, in consultation with the physician, for selecting the appropriate equipment and techniques to be used.
Reviews for JUSTIN NONE TOLSMA CCP
There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.
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 1659228302, 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 58. The final step is to find the difference between that total and the next multiple of ten (60 - 58 = 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 58 is 60. 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.
MOUNTAIN VIEW, CA 94040
MOUNTAIN VIEW, CA 94040
MOUNTAIN VIEW, CA 94040
MOUNTAIN VIEW, CA 94040
MOUNTAIN VIEW, CA 94040
MOUNTAIN VIEW, CA 94040
MOUNTAIN VIEW, CA 94040
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1659228302, enumerated as an "individual" on March 12, 2026.
The provider is located at 2500 GRANT RD MOUNTAIN VIEW, CA 94040 and the phone number is (650) 940-7000.
Perfusionist with taxonomy code 242T00000X.
