TONI RENEE DESJARDIN LAC
NPI 1033902812
Counselor - Addiction (Substance Use Disorder) in Great Falls, MT

NPI Status: Active since May 26, 2025

Contact Information

601 1ST AVE N
GREAT FALLS, MT
ZIP 59401
Phone: (406) 454-6973
Fax: (406) 791-9277

NPI Profile Information
Primary Taxonomy
Insurance Plans Accepted
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Female
Counselor
Addiction (Substance Use Disorder)
Accepts Insurance

About TONI DESJARDIN

This page provides the complete NPI Profile along with additional information for Toni Desjardin, a provider established in Great Falls, Montana with a medical specialization in Counselor, focusing in addiction (substance use disorder) . The healthcare provider is registered in the NPI registry with number 1033902812 assigned on May 2025. The practitioner's primary taxonomy code is 101YA0400X with license number BBH-LAC-LIC-78985 (MT). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI: 1033902812
Provider Name: TONI RENEE DESJARDIN LAC
Gender: Female
Entity Type: Individual
Location Address: 601 1ST AVE N GREAT FALLS, MT 59401
Location Phone: (406) 454-6973
Location Fax: (406) 791-9277
Mailing Address: 601 1ST AVE N GREAT FALLS, MT 59401
Mailing Phone: (406) 454-6973
Mailing Fax: (406) 791-9277
Is Sole Proprietor?: No
Enumeration Date: 05-26-2025
Last Update Date: 05-26-2025
Code Navigator

A Substance Abuse or Addiction Counselor like Toni Desjardin 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.: BBH-LAC-LIC-78985
License State: MT

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Blue Cross and Blue Shield of Montana

Blue Focus Bronze POS? 205 - POS
Blue Focus Bronze POS? 705 - POS
Blue Focus Bronze POS? Standard - POS
Blue Focus Gold POS? 207 - POS
Blue Focus Gold POS? 902 - POS
Blue Focus Gold POS? Standard - POS
Blue Focus Silver POS? 206 - POS
Blue Focus Silver POS? 903 - POS
Blue Focus Silver POS? Standard - POS
Blue Preferred Bronze PPO? 201 - PPO
Blue Preferred Bronze PPO? 202 - PPO
Blue Preferred Bronze PPO? Standard - PPO
Blue Preferred Gold PPO? 204 - PPO
Blue Preferred Gold PPO? 901 - PPO
Blue Preferred Gold PPO? Standard - PPO
Blue Preferred Security PPO? 200 - PPO
Blue Preferred Silver PPO? 203 - PPO
Blue Preferred Silver PPO? 308 - PPO
Blue Preferred Silver PPO? Standard - PPO

Mountain Health CO-OP

Peak PPO Bronze HDHP - PPO
Peak PPO Bronze Standard - PPO
Peak PPO Catastrophic - PPO
Peak PPO Gold - PPO
Peak PPO Gold Standard - PPO
Peak PPO Silver - PPO
Peak PPO Silver Standard - PPO
Plus Bronze - PPO
Plus Bronze Standard - PPO
Plus Gold - PPO
Plus Gold Standard - PPO
Plus Silver Standard - PPO
PEAK PPO BRONZE - PPO
PEAK PPO BRONZE HDHP - PPO
PEAK PPO GOLD - PPO
PEAK PPO GOLD HDHP - PPO
PEAK PPO SILVER - PPO
PEAK PPO SILVER HDHP - PPO
Plus Bronze HDHP - PPO
Plus Gold HDHP - PPO

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

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 1033902812, 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 58. The final step is to find the difference between that total and the next multiple of ten (60 - 58 = 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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 6

Pos 4

Unchanged

Pos 5

Doubled → 18 → 1 + 8

Pos 6

Unchanged

Pos 7

Doubled → 4

Pos 8

Unchanged

Pos 9

Doubled → 2

Check

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 3 → 6 9 → 18 → 9 2 → 4 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 6 + 3 + 1 + 8 + 0 + 4 + 8 + 2 + 24 = 58

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

The next multiple of ten after 58 is 60. The difference is the calculated check digit.

60 - 58 = 2

This NPI is valid

The calculated check digit is 2, which matches the last digit of 1033902812.