LIAM THOMAS ORSI EMT
NPI 1992590731
Emergency Medical Technician, Basic in Palo Alto, CA

NPI Status: Active since April 11, 2025

Contact Information

4139 EL CAMINO WAY
PALO ALTO, CA
ZIP 94306
Phone: (650) 999-7069
Fax: (408) 642-6052

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

Individual
Male
Emergency Medical Technician, Basic

About LIAM ORSI

This page provides the complete NPI Profile along with additional information for Liam Orsi, a provider established in Palo Alto, California with a medical specialization in Emergency Medical Technician, Basic. The healthcare provider is registered in the NPI registry with number 1992590731 assigned on April 2025. The practitioner's primary taxonomy code is 146N00000X with license number E196129 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI: 1992590731
Provider Name: LIAM THOMAS ORSI EMT
Gender: Male
Entity Type: Individual
Location Address: 4139 EL CAMINO WAY PALO ALTO, CA 94306
Location Phone: (650) 999-7069
Location Fax: (408) 642-6052
Mailing Address: 1922 THE ALAMEDA STE 316 SAN JOSE, CA 95126
Mailing Phone: (408) 261-7777
Mailing Fax: (408) 642-6052
Is Sole Proprietor?: No
Enumeration Date: 04-11-2025
Last Update Date: 04-11-2025
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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: Emergency Medical Technician, Basic
Taxonomy Code: 146N00000X
Type: Emergency Medical Service Providers
License No.: E196129
License State: CA
Taxonomy Description: A Basic EMT is an individual trained and certified to perform basic life support treatment in medical emergencies based on individual state boards.

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 1992590731, we treat the final digit (1) 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 69. The final step is to find the difference between that total and the next multiple of ten (70 - 69 = 1).

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 → 18 → 1 + 8

Pos 4

Unchanged

Pos 5

Doubled → 10 → 1 + 0

Pos 6

Unchanged

Pos 7

Doubled → 0

Pos 8

Unchanged

Pos 9

Doubled → 6

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 9 → 18 → 9 5 → 10 → 1 0 → 0 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 1 + 8 + 2 + 1 + 0 + 9 + 0 + 7 + 6 + 24 = 69

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

The next multiple of ten after 69 is 70. The difference is the calculated check digit.

70 - 69 = 1

This NPI is valid

The calculated check digit is 1, which matches the last digit of 1992590731.