MR. MATTHEW JAMES GRDGON CPHT
NPI 1639419831
Pharmacy Technician in Largo, FL

NPI Status: Active since February 25, 2013

Contact Information

1301 2ND AVE SW
SUITE 200
LARGO, FL
ZIP 33770
Phone: (727) 581-9382
Fax: (727) 585-5818

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

Individual
Male
Pharmacy Technician

About MATTHEW GRDGON

This page provides the complete NPI Profile along with additional information for Matthew Grdgon, a provider established in Largo, Florida with a medical specialization in Pharmacy Technician. The healthcare provider is registered in the NPI registry with number 1639419831 assigned on February 2013. The practitioner's primary taxonomy code is 183700000X with license number RPT4684 (FL). The provider is registered as an individual and his NPI record was last updated 13 years ago.

NPI: 1639419831
Provider Name: MR. MATTHEW JAMES GRDGON CPHT
Gender: Male
Entity Type: Individual
Location Address: 1301 2ND AVE SW SUITE 200 LARGO, FL 33770
Location Phone: (727) 581-9382
Location Fax: (727) 585-5818
Mailing Address: 1301 2ND AVE SW SUITE 200 LARGO, FL 33770
Mailing Phone: (727) 581-9382
Mailing Fax: (727) 585-5818
Is Sole Proprietor?: No
Enumeration Date: 02-25-2013
Last Update Date: 02-25-2013
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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: Pharmacy Technician
Taxonomy Code: 183700000X
Type: Pharmacy Service Providers
License No.: RPT4684
License State: FL
Taxonomy Description: A person who works under the direct supervision of a licensed pharmacist and performs many pharmacy-related functions that do not require the professional judgment of a pharmacist.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No.	Taxonomy Code	Type	Classification / Specialization	License No. (State)
1	183700000X	Pharmacy Service Providers	Pharmacy Technician	049-181910 (IL)

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 1639419831, 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 79. The final step is to find the difference between that total and the next multiple of ten (80 - 79 = 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 → 6

Pos 4

Unchanged

Pos 5

Doubled → 8

Pos 6

Unchanged

Pos 7

Doubled → 18 → 1 + 8

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 3 → 6 4 → 8 9 → 18 → 9 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 6 + 9 + 8 + 1 + 1 + 8 + 8 + 6 + 24 = 79

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

The next multiple of ten after 79 is 80. The difference is the calculated check digit.

80 - 79 = 1

This NPI is valid

The calculated check digit is 1, which matches the last digit of 1639419831.