SHEENA ELLIS
NPI 1396676888
Hearing Instrument Specialist in Billings, MT
NPI Status: Active since May 26, 2026
Contact Information
111 S 24TH ST W UNIT 7
BILLINGS, MT
ZIP 59102
Phone: (406) 248-1006
Fax: (406) 306-9038
This NPI profile has been added to the NPI registry within the last 30 days.
- Individual
- Female
- Hearing Instrument Specialist
About SHEENA ELLIS
This page provides the complete NPI Profile along with additional information for Sheena Ellis, a provider established in Billings, Montana with a medical specialization in Hearing Instrument Specialist. The healthcare provider is registered in the NPI registry with number 1396676888 assigned on May 2026. The practitioner's primary taxonomy code is 237700000X with license number HAD-HAD-PRV-2176 (MT). The provider is registered as an individual and her NPI record was last updated May 2026.
- NPI
- 1396676888
- Provider Name
- SHEENA ELLIS
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 111 S 24TH ST W UNIT 7 BILLINGS, MT 59102
- Location Phone
- (406) 248-1006
- Location Fax
- (406) 306-9038
- Mailing Address
- 2156 N HILL FIELD RD STE 3 LAYTON, UT 84041
- Mailing Phone
- (801) 203-4055
- Mailing Fax
- (406) 306-9038
- Is Sole Proprietor?
- No
- Enumeration Date
- 05-26-2026
- Last Update Date
- 05-26-2026
- 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
Hearing Instrument Specialist
- Taxonomy Code
- 237700000X
- Type
- Speech, Language and Hearing Service Providers
- License No.
- HAD-HAD-PRV-2176
- License State
- MT
- 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 1396676888, we treat the final digit (8) 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 72. The final step is to find the difference between that total and the next multiple of ten (80 - 72 = 8).
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 72 is 80. The difference is the calculated check digit.
Other Providers at the Same Location
The following 5 providers are registered at the same or a nearby location.
BILLINGS, MT 59102
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1396676888, enumerated as an "individual" on May 26, 2026.
The provider is located at 111 S 24TH ST W UNIT 7 BILLINGS, MT 59102 and the phone number is (406) 248-1006.
Hearing Instrument Specialist with taxonomy code 237700000X.
