DR. GARRISON MELZER DMD
NPI 1558293282
Dentist - General Practice in Fort Defiance, AZ

NPI Status: Active since May 29, 2026

Contact Information

PO BOX 649
FORT DEFIANCE, AZ
ZIP 86504
Phone: (928) 729-8000

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  • Individual
  • Male
  • Dentist
  • General Practice

About GARRISON MELZER

This page provides the complete NPI Profile along with additional information for Garrison Melzer, a provider established in Fort Defiance, Arizona with a medical specialization in Dentist, focusing in general practice . The healthcare provider is registered in the NPI registry with number 1558293282 assigned on May 2026. The practitioner's primary taxonomy code is 1223G0001X with license number DN31658 (FL). The provider is registered as an individual and his NPI record was last updated May 2026. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization.

NPI
1558293282
Provider Name
DR. GARRISON MELZER DMD
Gender
Male
Entity Type
Individual
Location Address
PO BOX 649 FORT DEFIANCE, AZ 86504
Location Phone
(928) 729-8000
Mailing Address
2078 DAIRY RD SNEADS, FL 32460
Is Sole Proprietor?
Yes
Enumeration Date
05-29-2026
Last Update Date
05-29-2026
Code Navigator

A dentist like Garrison Melzer is a skilled in and licensed provider that diagnoses and treats problems with patients teeth, gums, and related parts of the mouth. Dentists educate patients on how to take care of the teeth and gums and provide information on diet choices that affect oral health. Dentists must be licensed in the state in which they work.

Location Map

Secondary Locations

  • 530 Florida Ave
    Lynn Haven, FL 32444
    (850) 271-2341

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

Dentist General Practice

Taxonomy Code
1223G0001X
Type
Dental Providers
License No.
DN31658
License State
FL
Taxonomy Description
A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.

Group Taxonomy 193400000X SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.

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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 1558293282, 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
1
Doubled → 2
Pos 2
5
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
8
Unchanged
Pos 5
2
Doubled → 4
Pos 6
9
Unchanged
Pos 7
3
Doubled → 6
Pos 8
2
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
2
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 5 → 10 → 1 2 → 4 3 → 6 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 1 + 0 + 8 + 4 + 9 + 6 + 2 + 1 + 6 + 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 1558293282.

Other Providers at the Same Location


The following 5 providers are registered at the same or a nearby location.

Pharmacist
PO BOX 649
FORT DEFIANCE, AZ 86504
Respiratory Therapist, Registered
PO BOX 649
FORT DEFIANCE, AZ 86504
Optometrist
PO BOX 649
FORT DEFIANCE, AZ 86504
Surgery (Trauma Surgery)
PO BOX 649
FORT DEFIANCE, AZ 86504
Student in an Organized Health Care Education/Training Program
PO BOX 649
FORT DEFIANCE, AZ 86504

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1558293282, enumerated as an "individual" on May 29, 2026.

The provider is located at PO BOX 649 FORT DEFIANCE, AZ 86504 and the phone number is (928) 729-8000.

Dentist with taxonomy code 1223G0001X and a focus in General Practice.