MARSHA VONLINSOWE
NPI 1174469126
Counselor - Addiction (Substance Use Disorder) in Victorville, CA

NPI Status: Active since April 23, 2026

Contact Information

14286 CALIFORNIA AVE STE 102
VICTORVILLE, CA
ZIP 92392
Phone: (888) 503-1503
Fax: (760) 666-9731

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

About MARSHA VONLINSOWE

This page provides the complete NPI Profile along with additional information for Marsha Vonlinsowe, a provider established in Victorville, California with a medical specialization in Counselor, focusing in addiction (substance use disorder) . The healthcare provider is registered in the NPI registry with number 1174469126 assigned on April 2026. The practitioner's primary taxonomy code is 101YA0400X with license number AO16580315 (CA). The provider is registered as an individual and her NPI record was last updated April 2026.

NPI
1174469126
Provider Name
MARSHA VONLINSOWE
Gender
Female
Entity Type
Individual
Location Address
14286 CALIFORNIA AVE STE 102 VICTORVILLE, CA 92392
Location Phone
(888) 503-1503
Location Fax
(760) 666-9731
Mailing Address
14286 CALIFORNIA AVE STE 102 VICTORVILLE, CA 92392
Mailing Phone
(888) 503-1503
Mailing Fax
(760) 666-9731
Is Sole Proprietor?
No
Enumeration Date
04-23-2026
Last Update Date
04-23-2026
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A Substance Abuse or Addiction Counselor like Marsha Vonlinsowe 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.
AO16580315
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 1174469126, 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.

Pos 1
1
Doubled → 2
Pos 2
1
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
4
Unchanged
Pos 5
4
Doubled → 8
Pos 6
6
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
1
Unchanged
Pos 9
2
Doubled → 4
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 7 → 14 → 5 4 → 8 9 → 18 → 9 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 1 + 4 + 4 + 8 + 6 + 1 + 8 + 1 + 4 + 24 = 64

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.

70 - 64 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1174469126.

Other Providers at the Same Location


The following 2 providers are registered at the same or a nearby location.

Clinic/Center (Rehabilitation, Substance Use Disorder)
14286 CALIFORNIA AVE STE 102
VICTORVILLE, CA 92392
Counselor (Addiction (Substance Use Disorder))
14286 CALIFORNIA AVE STE 102
VICTORVILLE, CA 92392

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1174469126, enumerated as an "individual" on April 23, 2026.

The provider is located at 14286 CALIFORNIA AVE STE 102 VICTORVILLE, CA 92392 and the phone number is (888) 503-1503.

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