MR. STEPHEN GUY LOOSLI MSC
NPI 1538710553
Specialist - Research Study in Missoula, MT

NPI Status: Active since September 20, 2019

Contact Information

2831 FORT MISSOULA RD STE 232
MISSOULA, MT
ZIP 59804
Phone: (406) 404-8588

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

Individual
Male
Specialist
Research Study

About STEPHEN LOOSLI

This page provides the complete NPI Profile along with additional information for Stephen Loosli, a provider established in Missoula, Montana with a medical specialization in Specialist, focusing in research study . The healthcare provider is registered in the NPI registry with number 1538710553 assigned on September 2019. The practitioner's primary taxonomy code is 1744R1102X. The provider is registered as an individual and his NPI record was last updated 6 years ago.

NPI: 1538710553
Provider Name: MR. STEPHEN GUY LOOSLI MSC
Gender: Male
Entity Type: Individual
Location Address: 2831 FORT MISSOULA RD STE 232 MISSOULA, MT 59804
Location Phone: (406) 404-8588
Mailing Address: 2831 FORT MISSOULA RD STE 232 MISSOULA, MT 59804
Mailing Phone: (406) 404-8588
Is Sole Proprietor?: No
Enumeration Date: 09-20-2019
Last Update Date: 08-10-2020
Code Navigator

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: Specialist Research Study
Taxonomy Code: 1744R1102X
Type: Other Service Providers

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 1538710553, we treat the final digit (3) 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 57. The final step is to find the difference between that total and the next multiple of ten (60 - 57 = 3).

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 → 14 → 1 + 4

Pos 6

Unchanged

Pos 7

Doubled → 0

Pos 8

Unchanged

Pos 9

Doubled → 10 → 1 + 0

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 7 → 14 → 5 0 → 0 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 6 + 8 + 1 + 4 + 1 + 0 + 5 + 1 + 0 + 24 = 57

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

The next multiple of ten after 57 is 60. The difference is the calculated check digit.

60 - 57 = 3

This NPI is valid

The calculated check digit is 3, which matches the last digit of 1538710553.