MS. ISABELLA SHARI RIOJAS PHD
NPI 1851629968
Counselor - Mental Health in Mountlake Terrace, WA
NPI Status: Active since December 01, 2009
Contact Information
6505 216TH ST SW STE 100
MOUNTLAKE TERRACE, WA
ZIP 98043
Phone: (509) 726-0192
- Individual
- Female
- Counselor
- Mental Health
- CLIA Number: 50D2197927
- CLIA Cert. Type: Other - DRUG TREATMENT
- CLIA Exp. Date: 04-04-2028
About ISABELLA RIOJAS
This page provides the complete NPI Profile along with additional information for Isabella Riojas, a provider established in Mountlake Terrace, Washington with a medical specialization in Counselor, focusing in mental health . The healthcare provider is registered in the NPI registry with number 1851629968 assigned on December 2009. The practitioner's primary taxonomy code is 101YM0800X with license number MHC.LH.70048562 (WA). The provider is registered as an individual and her NPI record was last updated March 2026.
- NPI
- 1851629968
- Provider Name
- MS. ISABELLA SHARI RIOJAS PHD
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 6505 216TH ST SW STE 100 MOUNTLAKE TERRACE, WA 98043
- Location Phone
- (509) 726-0192
- Mailing Address
- 100 N HOWARD ST SPOKANE, WA 99201
- Mailing Phone
- (509) 726-0192
- Is Sole Proprietor?
- No
- Enumeration Date
- 12-01-2009
- Last Update Date
- 03-03-2026
- Code Navigator
A mental health counselor like Isabella Riojas 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
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.70048562
- 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) |
|---|---|---|---|---|
| 1 | 104100000X | Behavioral Health & Social Service Providers | Social Worker |
CLIA Information
The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:
- CLIA Number
- 50D2197927
- Facility Type
- Other - DRUG TREATMENT
- Certificate Effective Date
- October 28, 2020
- Certificate Expiration Date
- April 04, 2028
- Laboratory Director
- LESLIE FIFER
- Certificate Type
- Certificate of Waiver
- Certificate Type Description
- This CLIA certificate is issued to Isabella Riojas to perform only waived tests. CLIA defines waived tests as simple tests with a low risk for an incorrect result. Waived tests include certain tests listed in CLIA regulations, tests cleared by the FDA for home use and tests approved by the FDA for waived status and that meet CLIA waiver criteria.
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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 1851629968, we treat the final digit (8) 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 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 8).
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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 62 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
MOUNTLAKE TERRACE, WA 98043
MOUNTLAKE TER, WA 98043
MOUNTLAKE TERRACE, WA 98043
MOUNTLAKE TERRACE, WA 98043
MOUNTLAKE TERRACE, WA 98043
MOUNTLAKE TERRACE, WA 98043
MOUNTLAKE TERRACE, WA 98043
MOUNTLAKE TERRACE, WA 98043
MOUNTLAKE TERRACE, WA 98043
MOUNTLAKE TERRACE, WA 98043
MOUNTLAKE TERRACE, WA 98043
MOUNTLAKE TERRACE, WA 98043
MOUNTLAKE TERRACE, WA 98043
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1851629968, enumerated as an "individual" on December 01, 2009.
The provider is located at 6505 216TH ST SW STE 100 MOUNTLAKE TERRACE, WA 98043 and the phone number is (509) 726-0192.
Counselor with taxonomy code 101YM0800X and a focus in Mental Health.
