SONJA MARIE DAVALOS CM60638711
NPI 1891338919
Psychologist - Health Service in Seattle, WA

NPI Status: Active since October 21, 2019

Contact Information

3808 S ANGELINE ST
SEATTLE, WA
ZIP 98118
Phone: (206) 461-4880

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

Individual
Female
Psychologist
Health Service

About SONJA DAVALOS

This page provides the complete NPI Profile along with additional information for Sonja Davalos, a provider established in Seattle, Washington with a medical specialization in Psychologist, focusing in health service . The healthcare provider is registered in the NPI registry with number 1891338919 assigned on October 2019. The practitioner's primary taxonomy code is 103TH0100X with license number CM60638711 (WA). The provider is registered as an individual and her NPI record was last updated 7 years ago.

NPI: 1891338919
Provider Name: SONJA MARIE DAVALOS CM60638711
Gender: Female
Entity Type: Individual
Location Address: 3808 S ANGELINE ST SEATTLE, WA 98118
Location Phone: (206) 461-4880
Mailing Address: 3808 S ANGELINE ST SEATTLE, WA 98118
Mailing Phone: (206) 461-4880
Is Sole Proprietor?: No
Enumeration Date: 10-21-2019
Last Update Date: 10-21-2019
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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: Psychologist Health Service
Taxonomy Code: 103TH0100X
Type: Behavioral Health & Social Service Providers
License No.: CM60638711
License State: WA
Taxonomy Description: A psychologist, certified/licensed at the independent practice level in his/her state, who is duly trained and experienced in the delivery of direct, preventative, assessment, and therapeutic intervention services to individuals whose growth, adjustment, or functioning is actually impaired or is demonstrably at high risk of impairment (1974).

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 1891338919, 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 → 6

Pos 6

Unchanged

Pos 7

Doubled → 16 → 1 + 6

Pos 8

Unchanged

Pos 9

Doubled → 2

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 3 → 6 8 → 16 → 7 1 → 2

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 + 6 + 3 + 1 + 6 + 9 + 2 + 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 1891338919.