TRISHA WILLIAMS LMHC
NPI 1346499456
Counselor - Mental Health in Yakima, WA

NPI Status: Active since September 12, 2008

Contact Information

1513 VALLEY WEST AVE
YAKIMA, WA
ZIP 98908
Phone: (509) 961-1091

Get Directions Write a Review

  • Individual
  • Female
  • Counselor
  • Mental Health
  • Accepts Insurance

About TRISHA WILLIAMS

This page provides the complete NPI Profile along with additional information for Trisha Williams, a provider established in Yakima, Washington with a medical specialization in Counselor, focusing in mental health . The healthcare provider is registered in the NPI registry with number 1346499456 assigned on September 2008. The practitioner's primary taxonomy code is 101YM0800X with license number MHC.LH.60384416 (WA). The provider is registered as an individual and her NPI record was last updated February 2026.

NPI
1346499456
Provider Name
TRISHA WILLIAMS LMHC
Gender
Female
Entity Type
Individual
Location Address
1513 VALLEY WEST AVE YAKIMA, WA 98908
Location Phone
(509) 961-1091
Mailing Address
1513 VALLEY WEST AVE YAKIMA, WA 98908
Is Sole Proprietor?
Yes
Enumeration Date
09-12-2008
Last Update Date
02-06-2026
Code Navigator

A mental health counselor like Trisha Williams provides treatment to individuals, families, couples, and groups for mental and emotional health issues and relationship problems. Mental health counselors treat clients with a variety of conditions, including anxiety, depression, grief, low self-esteem, stress, and suicidal impulses.

Location Map

Secondary Locations

  • 505 S 4th Ave
    Yakima, WA 98902
    (509) 576-4304

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

Counselor Mental Health

Taxonomy Code
101YM0800X
Type
Behavioral Health & Social Service Providers
License No.
MHC.LH.60384416
License State
WA

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1101YM0800XBehavioral Health & Social Service Providers

Counselor
Mental Health

(WA)
2101YM0800XBehavioral Health & Social Service Providers

Counselor
Mental Health

 
3101YP2500XBehavioral Health & Social Service Providers

Counselor
Professional

60384416 (WA)

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

  • Premera Blue Cross Alaska One Gold - PPO
  • Premera Blue Cross Preferred Bronze 5800 HSA - PPO
  • Premera Blue Cross Preferred Bronze 6350 - PPO
  • Premera Blue Cross Preferred Gold 1500 - PPO
  • Premera Blue Cross Preferred Silver 4500 - PPO
  • Premera Blue Cross Standard Bronze II - PPO
  • Premera Blue Cross Standard Gold - PPO
  • Premera Blue Cross Standard Silver - PPO
  • Premera Blue Cross Family Dental - PPO
  • Premera Blue Cross Pediatric Dental - PPO

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Reviews for TRISHA WILLIAMS LMHC

There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.

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 1346499456, we treat the final digit (6) 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 74. The final step is to find the difference between that total and the next multiple of ten (80 - 74 = 6).

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
3
Unchanged
Pos 3
4
Doubled → 8
Pos 4
6
Unchanged
Pos 5
4
Doubled → 8
Pos 6
9
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
4
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
6
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 4 → 8 4 → 8 9 → 18 → 9 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 8 + 6 + 8 + 9 + 1 + 8 + 4 + 1 + 0 + 24 = 74

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

The next multiple of ten after 74 is 80. The difference is the calculated check digit.

80 - 74 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1346499456.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1346499456, enumerated as an "individual" on September 12, 2008.

The provider is located at 1513 VALLEY WEST AVE YAKIMA, WA 98908 and the phone number is (509) 961-1091.

Counselor with taxonomy code 101YM0800X and a focus in Mental Health.

The provider might be accepting Accepts: Premera Blue Cross Blue Shield of Alaska. Please consult your insurance carrier or call the provider to verify.