DR. DAVID ALAN LEGENDRE PHD
NPI 1710019419
Psychologist - Addiction (Substance Use Disorder) in Youngsville, LA

NPI Status: Active since March 09, 2007

Contact Information

2445 E MILTON AVE
YOUNGSVILLE, LA
ZIP 70592
Phone: (337) 856-1919
Fax: (337) 856-1920

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

About DAVID LEGENDRE

This page provides the complete NPI Profile along with additional information for David Legendre, a provider established in Youngsville, Louisiana with a medical specialization in Psychologist, focusing in addiction (substance use disorder) . The healthcare provider is registered in the NPI registry with number 1710019419 assigned on March 2007. The practitioner's primary taxonomy code is 103TA0400X with license number 1912 (LA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1710019419
Provider Name
DR. DAVID ALAN LEGENDRE PHD
Gender
Male
Entity Type
Individual
Location Address
2445 E MILTON AVE YOUNGSVILLE, LA 70592
Location Phone
(337) 856-1919
Location Fax
(337) 856-1920
Mailing Address
129 CLAREMONT CIR LAFAYETTE, LA 70508
Mailing Phone
(337) 993-2706
Is Sole Proprietor?
Yes
Enumeration Date
03-09-2007
Last Update Date
07-08-2007
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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

Psychologist Addiction (Substance Use Disorder)

Taxonomy Code
103TA0400X
Type
Behavioral Health & Social Service Providers
License No.
1912
License State
LA
Taxonomy Description
A psychologist with a proficiency that involves the application of psychological treatment of addiction stemming from the use of alcohol and other psychoactive substances (e.g., nicotine, marijuana, cocaine, heroin) or behavioral addictions (e.g., gambling) with the aim of cessation or reduction of use and/or the amelioration of emotional, behavioral, interpersonal and other problems arising from the addictive behavior.

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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 1710019419, we treat the final digit (9) 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 51. The final step is to find the difference between that total and the next multiple of ten (60 - 51 = 9).

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
7
Unchanged
Pos 3
1
Doubled → 2
Pos 4
0
Unchanged
Pos 5
0
Doubled → 0
Pos 6
1
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
4
Unchanged
Pos 9
1
Doubled → 2
Check
9
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 1 → 2 0 → 0 9 → 18 → 9 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 2 + 0 + 0 + 1 + 1 + 8 + 4 + 2 + 24 = 51

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

The next multiple of ten after 51 is 60. The difference is the calculated check digit.

60 - 51 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1710019419.

Other Providers at the Same Location


The following 16 providers are registered at the same or a nearby location.

Family Medicine
2445 E MILTON AVE
YOUNGSVILLE, LA 70592
Family Medicine
2445 E MILTON AVE
YOUNGSVILLE, LA 70592
Acupuncturist
2445 E MILTON AVE
YOUNGSVILLE, LA 70592
Acupuncturist
2445 E MILTON AVE
YOUNGSVILLE, LA 70592
Acupuncturist
2445 E MILTON AVE
YOUNGSVILLE, LA 70592
Family Medicine
2445 E MILTON AVE
YOUNGSVILLE, LA 70592
Family Medicine
2445 E MILTON AVE
YOUNGSVILLE, LA 70592
Counselor (Professional)
2445 E MILTON AVE
YOUNGSVILLE, LA 70592
Family Medicine
2445 E MILTON AVE
YOUNGSVILLE, LA 70592
Family Medicine (Addiction Medicine)
2445 E MILTON AVE
YOUNGSVILLE, LA 70592
Social Worker (Clinical)
2445 E MILTON AVE
YOUNGSVILLE, LA 70592
Social Worker (Clinical)
2445 E MILTON AVE
YOUNGSVILLE, LA 70592
Family Medicine
2445 E MILTON AVE
YOUNGSVILLE, LA 70592
Family Medicine
2445 E MILTON AVE
YOUNGSVILLE, LA 70592
Family Medicine
2445 E MILTON AVE
YOUNGSVILLE, LA 70592
Nurse Practitioner (Family)
2445 E MILTON AVE
YOUNGSVILLE, LA 70592

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1710019419, enumerated as an "individual" on March 09, 2007.

The provider is located at 2445 E MILTON AVE YOUNGSVILLE, LA 70592 and the phone number is (337) 856-1919.

Psychologist with taxonomy code 103TA0400X and a focus in Addiction (Substance Use Disorder).