EMILY WILLIS RDN, LDN
NPI 1386516573
Dietitian, Registered in Chicago, IL
NPI Status: Active since September 18, 2025
Contact Information
1500 S FAIRFIELD AVE
CHICAGO, IL
ZIP 60608
Phone: (773) 542-2000
- Individual
- Female
- Dietitian, Registered
About EMILY WILLIS
This page provides the complete NPI Profile along with additional information for Emily Willis, a provider established in Chicago, Illinois with a medical specialization in Dietitian, Registered. The healthcare provider is registered in the NPI registry with number 1386516573 assigned on September 2025. The practitioner's primary taxonomy code is 133V00000X. The provider is registered as an individual and her NPI record was last updated one year ago.
- NPI
- 1386516573
- Provider Name
- EMILY WILLIS RDN, LDN
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 1500 S FAIRFIELD AVE CHICAGO, IL 60608
- Location Phone
- (773) 542-2000
- Mailing Address
- 1140 N LA SALLE DR APT 204 CHICAGO, IL 60610
- Is Sole Proprietor?
- No
- Enumeration Date
- 09-18-2025
- Last Update Date
- 09-18-2025
- 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
Dietitian, Registered
- Taxonomy Code
- 133V00000X
- Type
- Dietary & Nutritional Service Providers
- Taxonomy Description
- A Registered Dietitian (RD)/Registered Dietitian Nutritionist (RDN) is an individual uniquely trained in the science of nutrition and practice of dietetics to design and provide medical nutrition therapy (MNT) and other evidence-based applications of the Nutrition Care Process (NCP) that exemplify the profession's systematic approach to providing high quality nutrition care. Registered dietitians provide MNT for the purpose of disease prevention or management, or to treat or rehabilitate an illness, injury, or condition, with the use of specific, indicated physical and cognitive nutrition care services comprised of one or more of the following aspects of the NCP: nutrition assessment/reassessment, nutrition diagnosis, nutrition intervention (e.g., nutrition counseling, therapeutic diet ordering, and nutrition education) and nutrition monitoring and evaluation.
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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 1386516573, 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.
CHICAGO, IL 60608
CHICAGO, IL 60608
CHICAGO, IL 60608
CHICAGO, IL 60608
CHICAGO, IL 60608
CHICAGO, IL 60608
CHICAGO, IL 60608
CHICAGO, IL 60608
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1386516573, enumerated as an "individual" on September 18, 2025.
The provider is located at 1500 S FAIRFIELD AVE CHICAGO, IL 60608 and the phone number is (773) 542-2000.
Dietitian, Registered with taxonomy code 133V00000X.
