MRS. MARY G SNELL LPC LCDC
NPI 1801993902
Counselor - Addiction (Substance Use Disorder) in Plano, TX

NPI Status: Active since September 20, 2006

Contact Information

555 REPUBLIC DR
STE 109
PLANO, TX
ZIP 75074
Phone: (972) 669-5646
Fax: (972) 509-9062

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

About MARY SNELL

This page provides the complete NPI Profile along with additional information for Mary Snell, a provider established in Plano, Texas with a medical specialization in Counselor, focusing in addiction (substance use disorder) . The healthcare provider is registered in the NPI registry with number 1801993902 assigned on September 2006. The practitioner's primary taxonomy code is 101YA0400X with license number 622 (TX). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1801993902
Provider Name
MRS. MARY G SNELL LPC LCDC
Gender
Female
Entity Type
Individual
Location Address
555 REPUBLIC DR STE 109 PLANO, TX 75074
Location Phone
(972) 669-5646
Location Fax
(972) 509-9062
Mailing Address
3004 PADRE CT PLANO, TX 75075
Mailing Phone
(972) 596-8151
Is Sole Proprietor?
No
Enumeration Date
09-20-2006
Last Update Date
09-11-2025
Code Navigator

A Substance Abuse or Addiction Counselor like Mary Snell 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.

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 Addiction (Substance Use Disorder)

Taxonomy Code
101YA0400X
Type
Behavioral Health & Social Service Providers
License No.
622
License State
TX

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)
1101YP2500XBehavioral Health & Social Service Providers

Counselor
Professional

14237 (TX)

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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 1801993902, 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
8
Unchanged
Pos 3
0
Doubled → 0
Pos 4
1
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
9
Unchanged
Pos 7
3
Doubled → 6
Pos 8
9
Unchanged
Pos 9
0
Doubled → 0
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 0 → 0 9 → 18 → 9 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 + 8 + 0 + 1 + 1 + 8 + 9 + 6 + 9 + 0 + 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 1801993902.

Other Providers at the Same Location


The following 14 providers are registered at the same or a nearby location.

Counselor (Mental Health)
555 REPUBLIC DR, SUITE 109
PLANO, TX 75074
Counselor (Professional)
555 REPUBLIC DR, STE. 200
PLANO, TX 75074
Counselor (Mental Health)
555 REPUBLIC DR, SUITE 109
PLANO, TX 75074
Counselor (Professional)
555 REPUBLIC DR, STE. 200
PLANO, TX 75074
Private Vehicle
555 REPUBLIC DR, SUITE 200
PLANO, TX 75074
Home Health
555 REPUBLIC DR, 2ND FLOOR
PLANO, TX 75074
Counselor (Professional)
555 REPUBLIC DR
PLANO, TX 75074
Counselor (Professional)
555 REPUBLIC DR, SUITE 200
PLANO, TX 75074
Dietitian, Registered
555 REPUBLIC DR, SUITE 200
PLANO, TX 75074
Dietitian, Registered
555 REPUBLIC DR, SUITE 200
PLANO, TX 75074
Dietitian, Registered (Nutrition, Pediatric)
555 REPUBLIC DR, SUITE 200
PLANO, TX 75074
Specialist
555 REPUBLIC DR, SUITE 460
PLANO, TX 75074
Home Health
555 REPUBLIC DR
PLANO, TX 75074
Psychiatry & Neurology (Neurology)
555 REPUBLIC DR
PLANO, TX 75074

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1801993902, enumerated as an "individual" on September 20, 2006.

The provider is located at 555 REPUBLIC DR STE 109 PLANO, TX 75074 and the phone number is (972) 669-5646.

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