ZACHARY HARKNESS
NPI 1750178158
Day Training/Habilitation Specialist in San Francisco, CA
NPI Status: Active since April 21, 2025
Contact Information
77 CORTLAND AVE
SAN FRANCISCO, CA
ZIP 94110
Phone: (415) 861-0828
- Individual
- Male
- Day Training/Habilitation Specialist
About ZACHARY HARKNESS
This page provides the complete NPI Profile along with additional information for Zachary Harkness, a provider established in San Francisco, California with a medical specialization in Day Training/habilitation Specialist. The healthcare provider is registered in the NPI registry with number 1750178158 assigned on April 2025. The practitioner's primary taxonomy code is 373H00000X. The provider is registered as an individual and his NPI record was last updated one year ago.
- NPI
- 1750178158
- Provider Name
- ZACHARY HARKNESS
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 77 CORTLAND AVE SAN FRANCISCO, CA 94110
- Location Phone
- (415) 861-0828
- Mailing Address
- 77 CORTLAND AVE SAN FRANCISCO, CA 94110
- Mailing Phone
- (415) 861-0828
- Is Sole Proprietor?
- No
- Enumeration Date
- 04-21-2025
- Last Update Date
- 10-15-2025
- 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
Day Training/Habilitation Specialist
- Taxonomy Code
- 373H00000X
- Type
- Nursing Service Related Providers
- Taxonomy Description
- Individuals experienced or trained in working with developmentally disabled individuals who need assistance in acquiring and maintaining life skills that enable them to cope more effectively with the demands of independent living.
Secondary Taxonomies
The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.
| No. | Taxonomy Code | Type | Classification / Specialization |
License No. (State) |
|---|---|---|---|---|
| 1 | 172V00000X | Other Service Providers | Community Health Worker | |
| 2 | 225400000X | Respiratory, Developmental, Rehabilitative and Restorative Service Providers | Rehabilitation Practitioner |
Reviews for ZACHARY HARKNESS
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 1750178158, we treat the final digit (8) 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 52. The final step is to find the difference between that total and the next multiple of ten (60 - 52 = 8).
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 52 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.
SAN FRANCISCO, CA 94110
SAN FRANCISCO, CA 94110
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1750178158, enumerated as an "individual" on April 21, 2025.
The provider is located at 77 CORTLAND AVE SAN FRANCISCO, CA 94110 and the phone number is (415) 861-0828.
Day Training/Habilitation Specialist with taxonomy code 373H00000X.
