ROY LAGAT
NPI 1669308722
Non-emergency Medical Transport (VAN) in Watertown, SD

NPI Status: Active since June 18, 2026

Contact Information

25 1ST AVE SW STE A
WATERTOWN, SD
ZIP 57201
Phone: (641) 202-7002

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Newly Listed Provider
This NPI profile has been added to the NPI registry within the last 30 days.

Table of Contents

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

Individual
Male
Non-emergency Medical Transport (VAN)

About ROY LAGAT

This page provides the complete NPI Profile along with additional information for Roy Lagat, a provider established in Watertown, South Dakota with a medical specialization in Non-emergency Medical Transport (van). The healthcare provider is registered in the NPI registry with number 1669308722 assigned on June 2026. The practitioner's primary taxonomy code is 343900000X. The provider is registered as an individual and his NPI record was last updated June 2026.

NPI: 1669308722
Provider Name: ROY LAGAT
Gender: Male
Entity Type: Individual
Location Address: 25 1ST AVE SW STE A WATERTOWN, SD 57201
Location Phone: (641) 202-7002
Mailing Address: 5605 FLOYD ST OVERLAND PARK, KS 66202
Is Sole Proprietor?: Yes
Enumeration Date: 06-18-2026
Last Update Date: 06-18-2026
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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: Non-emergency Medical Transport (VAN)
Taxonomy Code: 343900000X
Type: Transportation Services
License State: SD
Taxonomy Description: A land vehicle with a capacity to meet special height, clearance, access, and seating, for the conveyance of persons in non-emergency situations. The vehicle may or may not be required to meet local county or state regulations.

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 1669308722, 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 68. The final step is to find the difference between that total and the next multiple of ten (70 - 68 = 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 → 12 → 1 + 2

Pos 4

Unchanged

Pos 5

Doubled → 6

Pos 6

Unchanged

Pos 7

Doubled → 16 → 1 + 6

Pos 8

Unchanged

Pos 9

Doubled → 4

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 6 → 12 → 3 3 → 6 8 → 16 → 7 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 2 + 9 + 6 + 0 + 1 + 6 + 7 + 4 + 24 = 68

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

The next multiple of ten after 68 is 70. The difference is the calculated check digit.

70 - 68 = 2

This NPI is valid

The calculated check digit is 2, which matches the last digit of 1669308722.