PETER LOISELLE LCSW, LISAC
NPI 1386626877
Counselor - Addiction (Substance Use Disorder) in Tucson, AZ

NPI Status: Active since November 18, 2005

Contact Information

6812 N ORACLE RD
SUITE 114
TUCSON, AZ
ZIP 85704
Phone: (520) 797-9306
Fax: (520) 544-8312

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

About PETER LOISELLE

This page provides the complete NPI Profile along with additional information for Peter Loiselle, a provider established in Tucson, Arizona with a medical specialization in Counselor, focusing in addiction (substance use disorder) . The healthcare provider is registered in the NPI registry with number 1386626877 assigned on November 2005. The practitioner's primary taxonomy code is 101YA0400X with license number LISAC-0936 (AZ). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1386626877
Provider Name
PETER LOISELLE LCSW, LISAC
Gender
Male
Entity Type
Individual
Location Address
6812 N ORACLE RD SUITE 114 TUCSON, AZ 85704
Location Phone
(520) 797-9306
Location Fax
(520) 544-8312
Mailing Address
8715 N MORNING VIEW DR TUCSON, AZ 85704
Mailing Phone
(520) 797-8416
Mailing Fax
(520) 544-8312
Is Sole Proprietor?
Yes
Enumeration Date
11-18-2005
Last Update Date
09-11-2025
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A Substance Abuse or Addiction Counselor like Peter Loiselle 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.
LISAC-0936
License State
AZ

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)
11041C0700XBehavioral Health & Social Service Providers

Social Worker
Clinical

LCSW-0812 (AZ)

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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 1386626877, 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
3
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
6
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
2
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
8
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
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 8 → 16 → 7 6 → 12 → 3 6 → 12 → 3 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 + 1 + 6 + 6 + 1 + 2 + 2 + 1 + 2 + 8 + 1 + 4 + 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 1386626877.

Other Providers at the Same Location


The following 13 providers are registered at the same or a nearby location.

Psychiatry & Neurology (Psychiatry)
6812 N ORACLE RD, SUITE 100
TUCSON, AZ 85704
Nurse Practitioner (Psychiatric/Mental Health)
6812 N ORACLE RD, 114
TUCSON, AZ 85704
Counselor (Professional)
6812 N ORACLE RD, SUITE 114
TUCSON, AZ 85704
Social Worker (Clinical)
6812 N ORACLE RD, SUITE 100
TUCSON, AZ 85704
Psychiatry & Neurology (Psychiatry)
6812 N ORACLE RD, SUITE 100
TUCSON, AZ 85704
Chiropractor
6812 N ORACLE RD, SUITE 144
TUCSON, AZ 85704
Chiropractor
6812 N ORACLE RD, 144
TUCSON, AZ 85704
Social Worker (Clinical)
6812 N ORACLE RD, SUITE 124
TUCSON, AZ 85704
Massage Therapist
6812 N ORACLE RD, 100
TUCSON, AZ 85704
Social Worker (Clinical)
6812 N ORACLE RD, SUITE 124
TUCSON, AZ 85704
Psychiatry & Neurology (Psychiatry)
6812 N ORACLE RD, #100
TUCSON, AZ 85704
Psychiatry & Neurology (Psychiatry)
6812 N ORACLE RD, SUITE 100
TUCSON, AZ 85704
Acupuncturist
6812 N ORACLE RD, STE 130
TUCSON, AZ 85704

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1386626877, enumerated as an "individual" on November 18, 2005.

The provider is located at 6812 N ORACLE RD SUITE 114 TUCSON, AZ 85704 and the phone number is (520) 797-9306.

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