JOHNNY GUEST LICENSED AID DEALER
NPI 1881815736
Hearing Instrument Specialist in Marianna, FL
NPI Status: Active since May 01, 2007
Contact Information
2944 PENN AVE STE E
MARIANNA, FL
ZIP 32448
Phone: (850) 372-4548
- Individual
- Male
- Hearing Instrument Specialist
About JOHNNY GUEST
This page provides the complete NPI Profile along with additional information for Johnny Guest, a provider established in Marianna, Florida with a medical specialization in Hearing Instrument Specialist. The healthcare provider is registered in the NPI registry with number 1881815736 assigned on May 2007. The practitioner's primary taxonomy code is 237700000X with license number HADE034820 (GA). The provider is registered as an individual and his NPI record was last updated April 2026.
- NPI
- 1881815736
- Provider Name
- JOHNNY GUEST LICENSED AID DEALER
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 2944 PENN AVE STE E MARIANNA, FL 32448
- Location Phone
- (850) 372-4548
- Mailing Address
- 4226 BRISTOL PARK FLOWERY BRANCH, GA 30542
- Mailing Phone
- (404) 580-1982
- Mailing Fax
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 05-01-2007
- Last Update Date
- 04-15-2026
- Code Navigator
Location Map
Secondary Locations
- 215 W 11th St
Panama City, FL 32401
(850) 640-4191
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
Hearing Instrument Specialist
- Taxonomy Code
- 237700000X
- Type
- Speech, Language and Hearing Service Providers
- License No.
- HADE034820
- License State
- GA
- Taxonomy Description
- Individuals who test hearing for the selection, adaptation, fitting, adjusting, servicing, and sale of hearing aids. Hearing Instrument Specialist is a designation provided individuals who qualify by the National Hearing Aid Society
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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 1881815736, we treat the final digit (6) 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).
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 64 is 70. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1881815736, enumerated as an "individual" on May 01, 2007.
The provider is located at 2944 PENN AVE STE E MARIANNA, FL 32448 and the phone number is (850) 372-4548.
Hearing Instrument Specialist with taxonomy code 237700000X.
