SIERRA MOON
NPI 1235508953
Specialist/Technologist - Speech-Language Assistant in Los Alamitos, CA

NPI Status: Active since September 23, 2015

Contact Information

3722 KATELLA AVE STE C
LOS ALAMITOS, CA
ZIP 90720
Phone: (562) 270-2970

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

Individual
Female
Specialist/Technologist
Speech-Language Assistant

About SIERRA MOON

This page provides the complete NPI Profile along with additional information for Sierra Moon, a provider established in Los Alamitos, California with a medical specialization in Specialist/technologist, focusing in speech-language assistant . The healthcare provider is registered in the NPI registry with number 1235508953 assigned on September 2015. The practitioner's primary taxonomy code is 2355S0801X with license number 3330 (CA). The provider is registered as an individual and her NPI record was last updated 6 years ago.

NPI: 1235508953
Provider Name: SIERRA MOON
Gender: Female
Entity Type: Individual
Location Address: 3722 KATELLA AVE STE C LOS ALAMITOS, CA 90720
Location Phone: (562) 270-2970
Mailing Address: 16972 HOSKINS LN APT 2 HUNTINGTON BEACH, CA 92649
Mailing Phone: (760) 780-9664
Is Sole Proprietor?: Yes
Enumeration Date: 09-23-2015
Last Update Date: 10-19-2020
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Location Map

Secondary Locations

249 E Ocean Blvd Suite 400
Long Beach, CA 90802
(888) 808-7838

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.: 3330
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 1235508953, we treat the final digit (3) 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 57. The final step is to find the difference between that total and the next multiple of ten (60 - 57 = 3).

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 → 6

Pos 4

Unchanged

Pos 5

Doubled → 10 → 1 + 0

Pos 6

Unchanged

Pos 7

Doubled → 16 → 1 + 6

Pos 8

Unchanged

Pos 9

Doubled → 10 → 1 + 0

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 3 → 6 5 → 10 → 1 8 → 16 → 7 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 6 + 5 + 1 + 0 + 0 + 1 + 6 + 9 + 1 + 0 + 24 = 57

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

The next multiple of ten after 57 is 60. The difference is the calculated check digit.

60 - 57 = 3

This NPI is valid

The calculated check digit is 3, which matches the last digit of 1235508953.