ALEXANDRA ALCALA
NPI 1285391995
Specialist/Technologist - Speech-Language Assistant in Arcadia, CA

NPI Status: Active since November 17, 2021

Contact Information

75 N SANTA ANITA AVE STE 105
ARCADIA, CA
ZIP 91006
Phone: (626) 538-2751

NPI Profile Information
Primary Taxonomy
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Female
Specialist/Technologist
Speech-Language Assistant

About ALEXANDRA ALCALA

This page provides the complete NPI Profile along with additional information for Alexandra Alcala, a provider established in Arcadia, California with a medical specialization in Specialist/technologist, focusing in speech-language assistant . The healthcare provider is registered in the NPI registry with number 1285391995 assigned on November 2021. The practitioner's primary taxonomy code is 2355S0801X. The provider is registered as an individual and her NPI record was last updated 5 years ago.

NPI: 1285391995
Provider Name: ALEXANDRA ALCALA
Gender: Female
Entity Type: Individual
Location Address: 75 N SANTA ANITA AVE STE 105 ARCADIA, CA 91006
Location Phone: (626) 538-2751
Mailing Address: 230 S NUTWOOD ST ANAHEIM, CA 92804
Mailing Phone: (714) 855-0200
Is Sole Proprietor?: No
Enumeration Date: 11-17-2021
Last Update Date: 11-17-2021
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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: Specialist/Technologist Speech-Language Assistant
Taxonomy Code: 2355S0801X
Type: Speech, Language and Hearing Service Providers

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 1285391995, we treat the final digit (5) 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 75. The final step is to find the difference between that total and the next multiple of ten (80 - 75 = 5).

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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 16 → 1 + 6

Pos 4

Unchanged

Pos 5

Doubled → 6

Pos 6

Unchanged

Pos 7

Doubled → 2

Pos 8

Unchanged

Pos 9

Doubled → 18 → 1 + 8

Check

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 8 → 16 → 7 3 → 6 1 → 2 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 1 + 6 + 5 + 6 + 9 + 2 + 9 + 1 + 8 + 24 = 75

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

The next multiple of ten after 75 is 80. The difference is the calculated check digit.

80 - 75 = 5

This NPI is valid

The calculated check digit is 5, which matches the last digit of 1285391995.