MRS. TAMMIE M ZELKO RD
NPI 1407335250
Dietitian, Registered - Nutrition, Oncology in Urbana, IL
NPI Status: Active since August 13, 2018
Contact Information
509 W UNIVERSITY AVE
URBANA, IL
ZIP 61801
Phone: (217) 326-3142
- Individual
- Female
- Dietitian, Registered
- Nutrition, Oncology
About TAMMIE ZELKO
This page provides the complete NPI Profile along with additional information for Tammie Zelko, a provider established in Urbana, Illinois with a medical specialization in Dietitian, Registered, focusing in nutrition, oncology . The healthcare provider is registered in the NPI registry with number 1407335250 assigned on August 2018. The practitioner's primary taxonomy code is 133VN1301X with license number 164.002920 (IL). The provider is registered as an individual and her NPI record was last updated February 2026.
- NPI
- 1407335250
- Provider Name
- MRS. TAMMIE M ZELKO RD
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 509 W UNIVERSITY AVE URBANA, IL 61801
- Location Phone
- (217) 326-3142
- Mailing Address
- 1401 NORTHSHIRE LN LAKE ST LOUIS, MO 63367
- Mailing Phone
- (217) 326-3142
- Is Sole Proprietor?
- No
- Enumeration Date
- 08-13-2018
- Last Update Date
- 02-02-2026
- 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
Dietitian, Registered Nutrition, Oncology
- Taxonomy Code
- 133VN1301X
- Type
- Dietary & Nutritional Service Providers
- License No.
- 164.002920
- License State
- IL
- Taxonomy Description
- An individual who is a Board Certified Specialist in Oncology Nutrition and provides direct nutrition care for individuals at risk for or diagnosed with cancer. RDNs working directly with individuals at risk for, or diagnosed with, any type of malignancy or pre-malignant condition, in a variety of settings (e.g. hospitals, clinics, cancer centers, hospices, public health), OR indirectly through roles in management, education, industry, and research practice linked specifically to oncology nutrition. RDN who works indirectly with oncology nutrition through roles in management, education, industry, and research.
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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 1407335250, we treat the final digit (0) 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 50. The final step is to find the difference between that total and the next multiple of ten (50 - 50 = 0).
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 50 is 50. 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.
URBANA, IL 61801
URBANA, IL 61801
URBANA, IL 61801
URBANA, IL 61801
URBANA, IL 61801
URBANA, IL 61801
URBANA, IL 61801
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1407335250, enumerated as an "individual" on August 13, 2018.
The provider is located at 509 W UNIVERSITY AVE URBANA, IL 61801 and the phone number is (217) 326-3142.
Dietitian, Registered with taxonomy code 133VN1301X and a focus in Nutrition, Oncology.
