ZACHARIAH JORDAN BACKUS M.S.
NPI 1447042007
Speech-Language Pathologist in San Leandro, CA

NPI Status: Active since May 20, 2025

Contact Information

368 JUANA AVE
SAN LEANDRO, CA
ZIP 94577
Phone: (357) 510-4015

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  • Individual
  • Male
  • Speech-Language Pathologist

About ZACHARIAH BACKUS

This page provides the complete NPI Profile along with additional information for Zachariah Backus, a provider established in San Leandro, California with a medical specialization in Speech-language Pathologist. The healthcare provider is registered in the NPI registry with number 1447042007 assigned on May 2025. The practitioner's primary taxonomy code is 235Z00000X. The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1447042007
Provider Name
ZACHARIAH JORDAN BACKUS M.S.
Gender
Male
Entity Type
Individual
Location Address
368 JUANA AVE SAN LEANDRO, CA 94577
Location Phone
(357) 510-4015
Mailing Address
1045 POST ST APT 9 SAN FRANCISCO, CA 94109
Mailing Phone
(304) 972-7332
Is Sole Proprietor?
No
Enumeration Date
05-20-2025
Last Update Date
05-20-2025
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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

Speech-Language Pathologist

Taxonomy Code
235Z00000X
Type
Speech, Language and Hearing Service Providers
Taxonomy Description
The speech-language pathologist is the professional who engages in clinical services, prevention, advocacy, education, administration, and research in the areas of communication and swallowing across the life span from infancy through geriatrics. Speech-language pathologists address typical and atypical impairments and disorders related to communication and swallowing in the areas of speech sound production, resonance, voice, fluency, language (comprehension and expression), cognition, and feeding and swallowing.

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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 1447042007, we treat the final digit (7) 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 53. The final step is to find the difference between that total and the next multiple of ten (60 - 53 = 7).

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.

Pos 1
1
Doubled → 2
Pos 2
4
Unchanged
Pos 3
4
Doubled → 8
Pos 4
7
Unchanged
Pos 5
0
Doubled → 0
Pos 6
4
Unchanged
Pos 7
2
Doubled → 4
Pos 8
0
Unchanged
Pos 9
0
Doubled → 0
Check
7
Target digit
Regular digit Doubled digit Check digit

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.

1 → 2 4 → 8 0 → 0 2 → 4 0 → 0

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 4 + 8 + 7 + 0 + 4 + 4 + 0 + 0 + 24 = 53

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 53 is 60. The difference is the calculated check digit.

60 - 53 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1447042007.

Other Providers at the Same Location


The following 3 providers are registered at the same or a nearby location.

Physical Therapist
368 JUANA AVE
SAN LEANDRO, CA 94577
Skilled Nursing Facility
368 JUANA AVE
SAN LEANDRO, CA 94577
Occupational Therapist
368 JUANA AVE
SAN LEANDRO, CA 94577

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1447042007, enumerated as an "individual" on May 20, 2025.

The provider is located at 368 JUANA AVE SAN LEANDRO, CA 94577 and the phone number is (357) 510-4015.

Speech-Language Pathologist with taxonomy code 235Z00000X.