TERILYN T YAZZIE
NPI 1659215317
Social Worker in Chinle, AZ

NPI Status: Active since April 15, 2026

Contact Information

PO BOX PH
CHINLE, AZ
ZIP 86503
Phone: (928) 674-7388
Fax: (928) 674-7600

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  • Individual
  • Female
  • Social Worker

About TERILYN YAZZIE

This page provides the complete NPI Profile along with additional information for Terilyn Yazzie, a provider established in Chinle, Arizona with a medical specialization in Social Worker. The healthcare provider is registered in the NPI registry with number 1659215317 assigned on April 2026. The practitioner's primary taxonomy code is 104100000X with license number SWB-2024-0157 (NM). The provider is registered as an individual and her NPI record was last updated April 2026. 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
1659215317
Provider Name
TERILYN T YAZZIE
Gender
Female
Entity Type
Individual
Location Address
PO BOX PH CHINLE, AZ 86503
Location Phone
(928) 674-7388
Location Fax
(928) 674-7600
Mailing Address
309 LONE PINE DRIVE P.O. BOX 174 NAVAJO, NM 87328
Mailing Phone
(505) 457-6231
Is Sole Proprietor?
Yes
Enumeration Date
04-15-2026
Last Update Date
04-15-2026
Code Navigator

A social worker like Terilyn Yazzie helps patients solve and cope with problems in their everyday lives, diagnoses and treats mental, behavioral, and emotional problems. Social workers help in wide range of situations, such as adopting a child, illness, divorce, or unemployment.

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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

Social Worker

Taxonomy Code
104100000X
Type
Behavioral Health & Social Service Providers
License No.
SWB-2024-0157
License State
NM
Taxonomy Description
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.

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.

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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 1659215317, 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 53. The final step is to find the difference between that total and the next multiple of ten (60 - 53 = 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
1
Doubled → 2
Pos 2
6
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
9
Unchanged
Pos 5
2
Doubled → 4
Pos 6
1
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
3
Unchanged
Pos 9
1
Doubled → 2
Check
7
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 5 → 10 → 1 2 → 4 5 → 10 → 1 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 0 + 9 + 4 + 1 + 1 + 0 + 3 + 2 + 24 = 53

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

The next multiple of ten after 53 is 60. The difference is the calculated check digit.

60 - 53 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1659215317.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

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Internal Medicine
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Dentist (Periodontics)
PO BOX PH
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Pharmacist
PO BOX PH
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Pediatrics
PO BOX PH
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Pharmacist (Pharmacotherapy)
PO BOX PH
CHINLE, AZ 86503
Pharmacist
PO BOX PH
CHINLE, AZ 86503
Dental Hygienist
PO BOX PH
CHINLE, AZ 86503
Optometrist
PO BOX PH
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Speech-Language Pathologist
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Pediatrics
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Psychiatry & Neurology (Psychiatry)
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Family Medicine
PO BOX PH
CHINLE, AZ 86503

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1659215317, enumerated as an "individual" on April 15, 2026.

The provider is located at PO BOX PH CHINLE, AZ 86503 and the phone number is (928) 674-7388.

Social Worker with taxonomy code 104100000X.