DIEGO HARO
NPI 1821979287
Specialist/Technologist - Speech-Language Assistant in Downey, CA

NPI Status: Active since September 10, 2025

Contact Information

8535 FLORENCE AVE STE 200
DOWNEY, CA
ZIP 90240
Phone: (562) 261-5538

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

Individual
Male
Specialist/Technologist
Speech-Language Assistant

About DIEGO HARO

This page provides the complete NPI Profile along with additional information for Diego Haro, a provider established in Downey, California with a medical specialization in Specialist/technologist, focusing in speech-language assistant . The healthcare provider is registered in the NPI registry with number 1821979287 assigned on September 2025. The practitioner's primary taxonomy code is 2355S0801X. The provider is registered as an individual and his NPI record was last updated one year ago. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization.

NPI: 1821979287
Provider Name: DIEGO HARO
Gender: Male
Entity Type: Individual
Location Address: 8535 FLORENCE AVE STE 200 DOWNEY, CA 90240
Location Phone: (562) 261-5538
Mailing Address: 8535 FLORENCE AVE STE 200 DOWNEY, CA 90240
Mailing Phone: (562) 261-5538
Is Sole Proprietor?: Yes
Enumeration Date: 09-10-2025
Last Update Date: 09-10-2025
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: Specialist/Technologist Speech-Language Assistant
Taxonomy Code: 2355S0801X
Type: Speech, Language and Hearing Service Providers
License State: CA

Group Taxonomy 193400000X SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.

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 1821979287, 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 73. The final step is to find the difference between that total and the next multiple of ten (80 - 73 = 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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 4

Pos 4

Unchanged

Pos 5

Doubled → 18 → 1 + 8

Pos 6

Unchanged

Pos 7

Doubled → 18 → 1 + 8

Pos 8

Unchanged

Pos 9

Doubled → 16 → 1 + 6

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 2 → 4 9 → 18 → 9 9 → 18 → 9 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 4 + 1 + 1 + 8 + 7 + 1 + 8 + 2 + 1 + 6 + 24 = 73

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

The next multiple of ten after 73 is 80. The difference is the calculated check digit.

80 - 73 = 7

This NPI is valid

The calculated check digit is 7, which matches the last digit of 1821979287.