ALLISON CLAIRE HOLDER SUDRC
NPI 1326854472
Counselor - Addiction (Substance Use Disorder) in South San Francisco, CA

NPI Status: Active since December 04, 2024

Contact Information

306 SPRUCE AVE
SOUTH SAN FRANCISCO, CA
ZIP 94080
Phone: (650) 589-9305

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  • Individual
  • Female
  • Counselor
  • Addiction (Substance Use Disorder)

About ALLISON HOLDER

This page provides the complete NPI Profile along with additional information for Allison Holder, a provider established in South San Francisco, California with a medical specialization in Counselor, focusing in addiction (substance use disorder) . The healthcare provider is registered in the NPI registry with number 1326854472 assigned on December 2024. The practitioner's primary taxonomy code is 101YA0400X with license number 22119 (CA). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1326854472
Provider Name
ALLISON CLAIRE HOLDER SUDRC
Gender
Female
Entity Type
Individual
Location Address
306 SPRUCE AVE SOUTH SAN FRANCISCO, CA 94080
Location Phone
(650) 589-9305
Mailing Address
67 41ST AVE APT 4 SAN MATEO, CA 94403
Mailing Phone
(650) 430-7384
Is Sole Proprietor?
No
Enumeration Date
12-04-2024
Last Update Date
07-31-2025
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A Substance Abuse or Addiction Counselor like Allison Holder advices patients who experience alcoholism, drug addiction, eating disorders, mental health issues, or other mental or behavioral problems. Substance Abuse counselors provide treatment and support to help clients recover from addiction or modify problem behaviors. Many counselors incorporate the principles of 12-step programs, such as Alcoholics Anonymous (AA). They educate clients how to cope with stress and life’s issues in ways that help them recover. Counselors also help patients improve their personal relationships and find ways to discuss their addiction or other problems with family and friends.

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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 Addiction (Substance Use Disorder)

Taxonomy Code
101YA0400X
Type
Behavioral Health & Social Service Providers
License No.
22119
License State
CA

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)
1175T00000XOther Service Providers

Peer Specialist

MPSS-MXZFHL (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 1326854472, we treat the final digit (2) 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 68. The final step is to find the difference between that total and the next multiple of ten (70 - 68 = 2).

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
2
Doubled → 4
Pos 4
6
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
5
Unchanged
Pos 7
4
Doubled → 8
Pos 8
4
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
2
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 2 → 4 8 → 16 → 7 4 → 8 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 4 + 6 + 1 + 6 + 5 + 8 + 4 + 1 + 4 + 24 = 68

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

The next multiple of ten after 68 is 70. The difference is the calculated check digit.

70 - 68 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1326854472.

Other Providers at the Same Location


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

Clinic/Center (Multi-Specialty)
306 SPRUCE AVE
SOUTH SAN FRANCISCO, CA 94080
Counselor (Addiction (Substance Use Disorder))
306 SPRUCE AVE
SOUTH SAN FRANCISCO, CA 94080
Marriage & Family Therapist
306 SPRUCE AVE
SOUTH SAN FRANCISCO, CA 94080
Counselor (Addiction (Substance Use Disorder))
306 SPRUCE AVE
SOUTH SAN FRANCISCO, CA 94080
Counselor (Addiction (Substance Use Disorder))
306 SPRUCE AVE
SOUTH SAN FRANCISCO, CA 94080
Counselor (Addiction (Substance Use Disorder))
306 SPRUCE AVE
SOUTH SAN FRANCISCO, CA 94080
Counselor (Addiction (Substance Use Disorder))
306 SPRUCE AVE, FIRST FLOOR
SOUTH SAN FRANCISCO, CA 94080
Counselor (Addiction (Substance Use Disorder))
306 SPRUCE AVE
SOUTH SAN FRANCISCO, CA 94080
Community/Behavioral Health
306 SPRUCE AVE
SOUTH SAN FRANCISCO, CA 94080
Counselor (Addiction (Substance Use Disorder))
306 SPRUCE AVE
SOUTH SAN FRANCISCO, CA 94080
Community/Behavioral Health
306 SPRUCE AVE
SOUTH SAN FRANCISCO, CA 94080
Counselor (Addiction (Substance Use Disorder))
306 SPRUCE AVE
SOUTH SAN FRANCISCO, CA 94080
Case Manager/Care Coordinator
306 SPRUCE AVE
SOUTH SAN FRANCISCO, CA 94080
Counselor
306 SPRUCE AVE
SOUTH SAN FRANCISCO, CA 94080
Counselor (Addiction (Substance Use Disorder))
306 SPRUCE AVE
SOUTH SAN FRANCISCO, CA 94080
Counselor (Addiction (Substance Use Disorder))
306 SPRUCE AVE
SOUTH SAN FRANCISCO, CA 94080
Counselor (Addiction (Substance Use Disorder))
306 SPRUCE AVE
SOUTH SAN FRANCISCO, CA 94080
Counselor (Addiction (Substance Use Disorder))
306 SPRUCE AVE
SOUTH SAN FRANCISCO, CA 94080
Rehabilitation Counselor
306 SPRUCE AVE
SOUTH SAN FRANCISCO, CA 94080
Pediatrics
306 SPRUCE AVE, SOUTH SAN FRANCISCO CLINIC-2ND FLOOR
SOUTH SAN FRANCISCO, CA 94080

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1326854472, enumerated as an "individual" on December 04, 2024.

The provider is located at 306 SPRUCE AVE SOUTH SAN FRANCISCO, CA 94080 and the phone number is (650) 589-9305.

Counselor with taxonomy code 101YA0400X and a focus in Addiction (Substance Use Disorder).