DAVID OSWALT
NPI 1033514633
Hearing Instrument Specialist in Haverhill, MA
NPI Status: Active since October 27, 2014
Contact Information
62 BROWN ST
SUITE 204
HAVERHILL, MA
ZIP 01830
Phone: (978) 372-1939
- Individual
- Male
- Hearing Instrument Specialist
About DAVID OSWALT
This page provides the complete NPI Profile along with additional information for David Oswalt, a provider established in Haverhill, Massachusetts with a medical specialization in Hearing Instrument Specialist. The healthcare provider is registered in the NPI registry with number 1033514633 assigned on October 2014. The practitioner's primary taxonomy code is 237700000X with license number 273 (MA). The provider is registered as an individual and his NPI record was last updated 12 years ago.
- NPI
- 1033514633
- Provider Name
- DAVID OSWALT
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 62 BROWN ST SUITE 204 HAVERHILL, MA 01830
- Location Phone
- (978) 372-1939
- Mailing Address
- 62 BROWN ST SUITE 204 HAVERHILL, MA 01830
- Is Sole Proprietor?
- No
- Enumeration Date
- 10-27-2014
- Last Update Date
- 10-27-2014
- 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
Hearing Instrument Specialist
- Taxonomy Code
- 237700000X
- Type
- Speech, Language and Hearing Service Providers
- License No.
- 273
- License State
- MA
- 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 1033514633, we treat the final digit (3) 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 57. The final step is to find the difference between that total and the next multiple of ten (60 - 57 = 3).
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 57 is 60. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
HAVERHILL, MA 01830
HAVERHILL, MA 01830
HAVERHILL, MA 01830
HAVERHILL, MA 01830
HAVERHILL, MA 01830
HAVERHILL, MA 01830
HAVERHILL, MA 01830
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1033514633, enumerated as an "individual" on October 27, 2014.
The provider is located at 62 BROWN ST SUITE 204 HAVERHILL, MA 01830 and the phone number is (978) 372-1939.
Hearing Instrument Specialist with taxonomy code 237700000X.
