JOSEPH CLARK MS, RD, CSSD
NPI 1376460907
Dietitian, Registered - Nutrition, Sports Dietetics in Chicago, IL
NPI Status: Active since July 03, 2026
Contact Information
2508 W NORTH SHORE AVE APT 2
CHICAGO, IL
ZIP 60645
Phone: (651) 756-0081
This NPI profile has been added to the NPI registry within the last 30 days.
- Individual
- Male
- Dietitian, Registered
- Nutrition, Sports Dietetics
About JOSEPH CLARK
This page provides the complete NPI Profile along with additional information for Joseph Clark, a provider established in Chicago, Illinois with a medical specialization in Dietitian, Registered, focusing in nutrition, sports dietetics . The healthcare provider is registered in the NPI registry with number 1376460907 assigned on July 2026. The practitioner's primary taxonomy code is 133VN1501X. The provider is registered as an individual and his NPI record was last updated July 2026.
- NPI
- 1376460907
- Provider Name
- JOSEPH CLARK MS, RD, CSSD
- Other Name
- JOE CLARK
- Other Name Type
- Other Name (5)
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 2508 W NORTH SHORE AVE APT 2 CHICAGO, IL 60645
- Location Phone
- (651) 756-0081
- Mailing Address
- 2508 W NORTH SHORE AVE APT 2 CHICAGO, IL 60645
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 07-03-2026
- Last Update Date
- 07-03-2026
- 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, Sports Dietetics
- Taxonomy Code
- 133VN1501X
- Type
- Dietary & Nutritional Service Providers
- Taxonomy Description
- An individual who is a Board Certified Specialist in Sports Dietetics and applies evidence-based nutrition knowledge in exercise and sports. RDNs specializing in sports dietetics assess, educate, and counsel athletes and active individuals. They design, implement, and manage safe and effective nutrition strategies that enhance lifelong health, fitness, and optimal performance.
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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 1376460907, we treat the final digit (7) 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 7).
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 63 is 70. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1376460907, enumerated as an "individual" on July 03, 2026.
The provider is located at 2508 W NORTH SHORE AVE APT 2 CHICAGO, IL 60645 and the phone number is (651) 756-0081.
Dietitian, Registered with taxonomy code 133VN1501X and a focus in Nutrition, Sports Dietetics.
