TRACY DENNIS
NPI 1447196662
Technician - Attendant Care Provider in Chicago, IL
NPI Status: Active since April 28, 2026
Contact Information
9137 S JUSTINE ST
CHICAGO, IL
ZIP 60620
Phone: (312) 371-0335
- Individual
- Female
- Technician
- Attendant Care Provider
About TRACY DENNIS
This page provides the complete NPI Profile along with additional information for Tracy Dennis, a provider established in Chicago, Illinois with a medical specialization in Technician, focusing in attendant care provider . The healthcare provider is registered in the NPI registry with number 1447196662 assigned on April 2026. The practitioner's primary taxonomy code is 3747A0650X with license number 17854909 (IL). The provider is registered as an individual and her NPI record was last updated April 2026.
- NPI
- 1447196662
- Provider Name
- TRACY DENNIS
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 9137 S JUSTINE ST CHICAGO, IL 60620
- Location Phone
- (312) 371-0335
- Mailing Address
- 9137 S JUSTINE ST CHICAGO, IL 60620
- Mailing Phone
- (312) 371-0335
- Is Sole Proprietor?
- No
- Enumeration Date
- 04-28-2026
- Last Update Date
- 04-28-2026
- 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
Technician Attendant Care Provider
- Taxonomy Code
- 3747A0650X
- Type
- Nursing Service Related Providers
- License No.
- 17854909
- License State
- IL
- Taxonomy Description
- An individual who provides hands-on care, of both a supportive and health related nature, specific to the needs of a medically stable, physically handicapped individual. Supportive services are those that substitute for the absence, loss, diminution, or impairment of a physical or cognitive function. This service may include skilled or nursing care to the extent permitted by state law.
Secondary Taxonomies
The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.
| No. | Taxonomy Code | Type | Classification / Specialization |
License No. (State) |
|---|---|---|---|---|
| 1 | 3747P1801X | Nursing Service Related Providers | Technician | |
| 2 | 374U00000X | Nursing Service Related Providers | Home Health Aide |
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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 1447196662, 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.
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 68 is 70. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1447196662, enumerated as an "individual" on April 28, 2026.
The provider is located at 9137 S JUSTINE ST CHICAGO, IL 60620 and the phone number is (312) 371-0335.
Technician with taxonomy code 3747A0650X and a focus in Attendant Care Provider.
