MARY G WILLIS
NPI 1821971276
Home Health Aide in Massillon, OH
NPI Status: Active since July 30, 2025
Contact Information
1225 WELLMAN AVE SE
MASSILLON, OH
ZIP 44646
Phone: (330) 371-2383
- Individual
- Female
- Home Health Aide
About MARY WILLIS
This page provides the complete NPI Profile along with additional information for Mary Willis, a provider established in Massillon, Ohio with a medical specialization in Home Health Aide. The healthcare provider is registered in the NPI registry with number 1821971276 assigned on July 2025. The practitioner's primary taxonomy code is 374U00000X. The provider is registered as an individual and her NPI record was last updated one year ago.
- NPI
- 1821971276
- Provider Name
- MARY G WILLIS
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 1225 WELLMAN AVE SE MASSILLON, OH 44646
- Location Phone
- (330) 371-2383
- Mailing Address
- 1225 WELLMAN AVE SE MASSILLON, OH 44646
- Mailing Phone
- (330) 371-2383
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 07-30-2025
- Last Update Date
- 07-30-2025
- 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
Home Health Aide
- Taxonomy Code
- 374U00000X
- Type
- Nursing Service Related Providers
- Taxonomy Description
- A person trained to assist public health nurses, home health nurses, and other health professionals in the bedside care of patients in their homes.
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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 1821971276, 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 1821971276, enumerated as an "individual" on July 30, 2025.
The provider is located at 1225 WELLMAN AVE SE MASSILLON, OH 44646 and the phone number is (330) 371-2383.
Home Health Aide with taxonomy code 374U00000X.
