ADRIAN VINCENT GELFUSO
NPI 1861324485
Emergency Medical Technician, Basic in Sammamish, WA
NPI Status: Active since May 29, 2026
Contact Information
1855 TROSSACHS BLVD SE UNIT 1303
SAMMAMISH, WA
ZIP 98075
Phone: (425) 395-6638
This NPI profile has been added to the NPI registry within the last 30 days.
- Individual
- Male
- Emergency Medical Technician, Basic
About ADRIAN GELFUSO
This page provides the complete NPI Profile along with additional information for Adrian Gelfuso, a provider established in Sammamish, Washington with a medical specialization in Emergency Medical Technician, Basic. The healthcare provider is registered in the NPI registry with number 1861324485 assigned on May 2026. The practitioner's primary taxonomy code is 146N00000X with license number EMT.ES.70115744 (WA). The provider is registered as an individual and his NPI record was last updated May 2026.
- NPI
- 1861324485
- Provider Name
- ADRIAN VINCENT GELFUSO
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 1855 TROSSACHS BLVD SE UNIT 1303 SAMMAMISH, WA 98075
- Location Phone
- (425) 395-6638
- Mailing Address
- 1855 TROSSACHS BLVD SE UNIT 1303 SAMMAMISH, WA 98075
- Mailing Phone
- (425) 395-6638
- Is Sole Proprietor?
- No
- Enumeration Date
- 05-29-2026
- Last Update Date
- 05-29-2026
- 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
Emergency Medical Technician, Basic
- Taxonomy Code
- 146N00000X
- Type
- Emergency Medical Service Providers
- License No.
- EMT.ES.70115744
- License State
- WA
- 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.
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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 1861324485, 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 65. The final step is to find the difference between that total and the next multiple of ten (70 - 65 = 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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 65 is 70. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1861324485, enumerated as an "individual" on May 29, 2026.
The provider is located at 1855 TROSSACHS BLVD SE UNIT 1303 SAMMAMISH, WA 98075 and the phone number is (425) 395-6638.
Emergency Medical Technician, Basic with taxonomy code 146N00000X.
