STEPHANIE ESCOTO GUZMAN SLPA 2757
NPI 1891687489
Specialist/Technologist - Speech-Language Assistant in Brentwood, CA

NPI Status: Active since July 17, 2025

Contact Information

8660 BRENTWOOD BLVD
BRENTWOOD, CA
ZIP 94513
Phone: (925) 626-7474

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

Individual
Female
Specialist/Technologist
Speech-Language Assistant

About STEPHANIE ESCOTO GUZMAN

This page provides the complete NPI Profile along with additional information for Stephanie Escoto Guzman, a provider established in Brentwood, California with a medical specialization in Specialist/technologist, focusing in speech-language assistant . The healthcare provider is registered in the NPI registry with number 1891687489 assigned on July 2025. The practitioner's primary taxonomy code is 2355S0801X with license number 2757 (CA). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI: 1891687489
Provider Name: STEPHANIE ESCOTO GUZMAN SLPA 2757
Gender: Female
Entity Type: Individual
Location Address: 8660 BRENTWOOD BLVD BRENTWOOD, CA 94513
Location Phone: (925) 626-7474
Mailing Address: 675 WINDING CREEK TER BRENTWOOD, CA 94513
Mailing Phone: (914) 527-1383
Is Sole Proprietor?: No
Enumeration Date: 07-17-2025
Last Update Date: 07-17-2025
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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: Specialist/Technologist Speech-Language Assistant
Taxonomy Code: 2355S0801X
Type: Speech, Language and Hearing Service Providers
License No.: 2757
License State: CA

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 1891687489, we treat the final digit (9) 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 71. The final step is to find the difference between that total and the next multiple of ten (80 - 71 = 9).

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 → 18 → 1 + 8

Pos 4

Unchanged

Pos 5

Doubled → 12 → 1 + 2

Pos 6

Unchanged

Pos 7

Doubled → 14 → 1 + 4

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 9 → 18 → 9 6 → 12 → 3 7 → 14 → 5 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 + 1 + 8 + 1 + 1 + 2 + 8 + 1 + 4 + 4 + 1 + 6 + 24 = 71

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

The next multiple of ten after 71 is 80. The difference is the calculated check digit.

80 - 71 = 9

This NPI is valid

The calculated check digit is 9, which matches the last digit of 1891687489.