TARQUIN DILLON ALEXANDER LPCC
NPI 1790283307
Counselor - Professional in Los Angeles, CA

NPI Status: Active since January 29, 2018

Contact Information

4099 N MISSION RD
LOS ANGELES, CA
ZIP 90032
Phone: (323) 221-1746

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  • Individual
  • Male
  • Counselor
  • Professional

About TARQUIN ALEXANDER

This page provides the complete NPI Profile along with additional information for Tarquin Alexander, a provider established in Los Angeles, California with a medical specialization in Counselor, focusing in professional . The healthcare provider is registered in the NPI registry with number 1790283307 assigned on January 2018. The practitioner's primary taxonomy code is 101YP2500X with license number LPCC13946 (CA). The provider is registered as an individual and his NPI record was last updated 3 years ago.

NPI
1790283307
Provider Name
TARQUIN DILLON ALEXANDER LPCC
Gender
Male
Entity Type
Individual
Location Address
4099 N MISSION RD LOS ANGELES, CA 90032
Location Phone
(323) 221-1746
Mailing Address
1465 TAMARIND AVE # 314 LOS ANGELES, CA 90028
Is Sole Proprietor?
No
Enumeration Date
01-29-2018
Last Update Date
11-01-2023
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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

Counselor Professional

Taxonomy Code
101YP2500X
Type
Behavioral Health & Social Service Providers
License No.
LPCC13946
License State
CA

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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 1790283307, 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 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
7
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
0
Unchanged
Pos 5
2
Doubled → 4
Pos 6
8
Unchanged
Pos 7
3
Doubled → 6
Pos 8
3
Unchanged
Pos 9
0
Doubled → 0
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 9 → 18 → 9 2 → 4 3 → 6 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 1 + 8 + 0 + 4 + 8 + 6 + 3 + 0 + 24 = 63

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

The next multiple of ten after 63 is 70. The difference is the calculated check digit.

70 - 63 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1790283307.

Other Providers at the Same Location


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

Social Worker (Clinical)
4099 N MISSION RD
LOS ANGELES, CA 90032
Case Manager/Care Coordinator
4099 N MISSION RD
LOS ANGELES, CA 90032
Psychologist (Clinical)
4099 N MISSION RD
LOS ANGELES, CA 90032
Counselor (Addiction (Substance Use Disorder))
4099 N MISSION RD
LOS ANGELES, CA 90032
Counselor (Addiction (Substance Use Disorder))
4099 N MISSION RD
LOS ANGELES, CA 90032
Social Worker (Clinical)
4099 N MISSION RD
LOS ANGELES, CA 90032
Clinic/Center (Rehabilitation, Substance Use Disorder)
4099 N MISSION RD
LOS ANGELES, CA 90032
Clinic/Center (Rehabilitation, Comprehensive Outpatient Rehabilitation Facility (CORF))
4099 N MISSION RD
LOS ANGELES, CA 90032
Counselor (Addiction (Substance Use Disorder))
4099 N MISSION RD, SUITE A
LOS ANGELES, CA 90032
Counselor (Addiction (Substance Use Disorder))
4099 N MISSION RD
LOS ANGELES, CA 90032
Community/Behavioral Health
4099 N MISSION RD
LOS ANGELES, CA 90032
Case Manager/Care Coordinator
4099 N MISSION RD
LOS ANGELES, CA 90032
Counselor (Addiction (Substance Use Disorder))
4099 N MISSION RD
LOS ANGELES, CA 90032
Counselor (Mental Health)
4099 N MISSION RD
LOS ANGELES, CA 90032
Counselor (Mental Health)
4099 N MISSION RD
LOS ANGELES, CA 90032
Counselor (Addiction (Substance Use Disorder))
4099 N MISSION RD
LOS ANGELES, CA 90032
Counselor (Mental Health)
4099 N MISSION RD
LOS ANGELES, CA 90032
Counselor (Addiction (Substance Use Disorder))
4099 N MISSION RD
LOS ANGELES, CA 90032
Counselor (Addiction (Substance Use Disorder))
4099 N MISSION RD
LOS ANGELES, CA 90032
Counselor
4099 N MISSION RD
LOS ANGELES, CA 90032

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1790283307, enumerated as an "individual" on January 29, 2018.

The provider is located at 4099 N MISSION RD LOS ANGELES, CA 90032 and the phone number is (323) 221-1746.

Counselor with taxonomy code 101YP2500X and a focus in Professional.