ADOLESCENT MENTAL HEALTH LLC
NPI 1669241576
Community/Behavioral Health in Costa Mesa, CA
NPI Status: Active since December 20, 2023
Contact Information
129 W WILSON ST STE 200
COSTA MESA, CA
ZIP 92627
Phone: (951) 999-4390
- Organization
- Community/Behavioral Health
About ADOLESCENT MENTAL HEALTH LLC
This page provides the complete NPI Profile along with additional information for Adolescent Mental Health Llc, a provider established in Costa Mesa, California operating as a Community/behavioral Health. The healthcare provider is registered in the NPI registry with number 1669241576 assigned on December 2023. The practitioner's primary taxonomy code is 251S00000X. The provider is registered as an organization and their NPI record was last updated March 2026. The authorized official of this NPI record is Anthony Fletcher (Authorized Official)
- NPI
- 1669241576
- Provider Name
- ADOLESCENT MENTAL HEALTH LLC
- Entity Type
- Organization
- Location Address
- 129 W WILSON ST STE 200 COSTA MESA, CA 92627
- Location Phone
- (951) 999-4390
- Mailing Address
- 2108 N ST # 8615 SACRAMENTO, CA 95816
- Mailing Phone
- (951) 999-4390
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- No
- Enumeration Date
- 12-20-2023
- Last Update Date
- 03-06-2026
- Code Navigator
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
Community/Behavioral Health
- Taxonomy Code
- 251S00000X
- Type
- Agencies
- Taxonomy Description
- A private or public agency usually under local government jurisdiction, responsible for assuring the delivery of community based mental health, intellectual disabilities, substance abuse and/or behavioral health services to individuals with those disabilities. Services may range from companion care, respite, transportation, community integration, crisis intervention and stabilization, supported employment, day support, prevocational services, residential support, therapeutic and supportive consultation, environmental modifications, intensive in-home therapy and day treatment, in addition to traditional mental health and behavioral treatment.
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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 1669241576, 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 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.
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 64 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 1 provider is registered at the same or a nearby location.
COSTA MESA, CA 92627
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1669241576, enumerated as an "organization" on December 20, 2023.
The provider is located at 129 W WILSON ST STE 200 COSTA MESA, CA 92627 and the phone number is (951) 999-4390.
Community/Behavioral Health with taxonomy code 251S00000X.
