DR. SANDRA LEON-VILLA PHD
NPI 1306126305
Clinical Neuropsychologist in Las Vegas, NV

NPI Status: Active since August 22, 2011

Contact Information

6655 W SAHARA AVE STE C203
LAS VEGAS, NV
ZIP 89146
Phone: (702) 900-2784

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  • Individual
  • Female
  • Clinical Neuropsychologist

About SANDRA LEON-VILLA

This page provides the complete NPI Profile along with additional information for Sandra Leon-villa, a provider established in Las Vegas, Nevada with a medical specialization in Clinical Neuropsychologist. The healthcare provider is registered in the NPI registry with number 1306126305 assigned on August 2011. The practitioner's primary taxonomy code is 103G00000X with license number PY0815 (NV). The provider is registered as an individual and her NPI record was last updated December 2025.

NPI
1306126305
Provider Name
DR. SANDRA LEON-VILLA PHD
Gender
Female
Entity Type
Individual
Location Address
6655 W SAHARA AVE STE C203 LAS VEGAS, NV 89146
Location Phone
(702) 900-2784
Mailing Address
6655 W SAHARA AVE STE C203 LAS VEGAS, NV 89146
Mailing Phone
(702) 900-2784
Is Sole Proprietor?
Yes
Enumeration Date
08-22-2011
Last Update Date
12-16-2025
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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

Clinical Neuropsychologist

Taxonomy Code
103G00000X
Type
Behavioral Health & Social Service Providers
License No.
PY0815
License State
NV
Taxonomy Description
A clinical psychologist who applies principles of assessment and intervention based upon the scientific study of human behavior as it relates to normal and abnormal functioning of the central nervous system. The specialty is dedicated to enhancing the understanding of brain-behavior relationships and the application of such knowledge to human problems.

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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 1306126305, we treat the final digit (5) 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 45. The final step is to find the difference between that total and the next multiple of ten (50 - 45 = 5).

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
0
Doubled → 0
Pos 4
6
Unchanged
Pos 5
1
Doubled → 2
Pos 6
2
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
3
Unchanged
Pos 9
0
Doubled → 0
Check
5
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 1 → 2 6 → 12 → 3 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 0 + 6 + 2 + 2 + 1 + 2 + 3 + 0 + 24 = 45

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

The next multiple of ten after 45 is 50. The difference is the calculated check digit.

50 - 45 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1306126305.

Other Providers at the Same Location


The following 4 providers are registered at the same or a nearby location.

Counselor
6655 W SAHARA AVE STE C203
LAS VEGAS, NV 89146
Marriage & Family Therapist
6655 W SAHARA AVE STE C203
LAS VEGAS, NV 89146
Marriage & Family Therapist
6655 W SAHARA AVE STE C203
LAS VEGAS, NV 89146
Counselor (Professional)
6655 W SAHARA AVE STE C203
LAS VEGAS, NV 89146

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1306126305, enumerated as an "individual" on August 22, 2011.

The provider is located at 6655 W SAHARA AVE STE C203 LAS VEGAS, NV 89146 and the phone number is (702) 900-2784.

Clinical Neuropsychologist with taxonomy code 103G00000X.