WALKER EDWARD MCFARLAN MA, NCC
NPI 1396497491
Counselor - Professional in San Francisco, CA
NPI Status: Active since January 20, 2022
Contact Information
1563 MISSION ST
SAN FRANCISCO, CA
ZIP 94103
Phone: (415) 742-8520
- Individual
- Male
- Counselor
- Professional
About WALKER MCFARLAN
This page provides the complete NPI Profile along with additional information for Walker Mcfarlan, a provider established in San Francisco, California with a medical specialization in Counselor, focusing in professional . The healthcare provider is registered in the NPI registry with number 1396497491 assigned on January 2022. The practitioner's primary taxonomy code is 101YP2500X with license number LPCC18510 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.
- NPI
- 1396497491
- Provider Name
- WALKER EDWARD MCFARLAN MA, NCC
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 1563 MISSION ST SAN FRANCISCO, CA 94103
- Location Phone
- (415) 742-8520
- Mailing Address
- 1563 MISSION ST SAN FRANCISCO, CA 94103
- Mailing Phone
- (415) 742-8520
- Is Sole Proprietor?
- No
- Enumeration Date
- 01-20-2022
- Last Update Date
- 05-07-2025
- 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
Counselor Professional
- Taxonomy Code
- 101YP2500X
- Type
- Behavioral Health & Social Service Providers
- License No.
- LPCC18510
- License State
- CA
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 | 101YA0400X | Behavioral Health & Social Service Providers | Counselor |
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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 1396497491, we treat the final digit (1) 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 79. The final step is to find the difference between that total and the next multiple of ten (80 - 79 = 1).
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 79 is 80. 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.
SAN FRANCISCO, CA 94103
SAN FRANCISCO, CA 94103
SAN FRANCISCO, CA 94103
SAN FRANCISCO, CA 94103
SAN FRANCISCO, CA 94103
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1396497491, enumerated as an "individual" on January 20, 2022.
The provider is located at 1563 MISSION ST SAN FRANCISCO, CA 94103 and the phone number is (415) 742-8520.
Counselor with taxonomy code 101YP2500X and a focus in Professional.
