CHINMAI NAYYAR DPM
NPI 1316889934
Podiatrist in Evanston, IL

NPI Status: Active since April 06, 2026

Contact Information

2650 RIDGE AVE STE 1304
EVANSTON, IL
ZIP 60201
Phone: (847) 832-1513
Fax: (224) 251-3484

Recently Updated NPI Information
Some details in this NPI profile have been updated in the NPI registry within the last 30 days.

Table of Contents

NPI Profile Information
Primary Taxonomy
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Male
Podiatrist

About CHINMAI NAYYAR

This page provides the complete NPI Profile along with additional information for Chinmai Nayyar, a provider established in Evanston, Illinois with a medical specialization in Podiatrist. The healthcare provider is registered in the NPI registry with number 1316889934 assigned on April 2026. The practitioner's primary taxonomy code is 213E00000X with license number 135.011506 (IL). The provider is registered as an individual and his NPI record was last updated June 2026.

NPI: 1316889934
Provider Name: CHINMAI NAYYAR DPM
Gender: Male
Entity Type: Individual
Location Address: 2650 RIDGE AVE STE 1304 EVANSTON, IL 60201
Location Phone: (847) 832-1513
Location Fax: (224) 251-3484
Mailing Address: 180 HARVESTER DR STE 110 BURR RIDGE, IL 60527
Mailing Phone: (773) 702-1150
Is Sole Proprietor?: Yes
Enumeration Date: 04-06-2026
Last Update Date: 06-24-2026
Code Navigator

A podiatrist like Chinmai Nayyar provides medical and surgical care for people with foot, ankle, and lower leg issues. Podiatrists treat foot and ankle ailments like calluses, ingrown toenails, heel spurs, arthritis, congenital foot deformities, foot problems associated with diabetes and arch problems.

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: Podiatrist
Taxonomy Code: 213E00000X
Type: Podiatric Medicine & Surgery Service Providers
License No.: 135.011506
License State: IL
Taxonomy Description: A podiatrist is a person qualified by a Doctor of Podiatric Medicine (D.P.M.) degree, licensed by the state, and practicing within the scope of that license. Podiatrists diagnose and treat foot diseases and deformities. They perform medical, surgical and other operative procedures, prescribe corrective devices and prescribe and administer drugs and physical therapy.

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 1316889934, we treat the final digit (4) 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 76. The final step is to find the difference between that total and the next multiple of ten (80 - 76 = 4).

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.

Pos 1

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 2

Pos 4

Unchanged

Pos 5

Doubled → 16 → 1 + 6

Pos 6

Unchanged

Pos 7

Doubled → 18 → 1 + 8

Pos 8

Unchanged

Pos 9

Doubled → 6

Check

Target digit

Regular digit Doubled digit Check digit

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.

1 → 2 1 → 2 8 → 16 → 7 9 → 18 → 9 3 → 6

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 3 + 2 + 6 + 1 + 6 + 8 + 1 + 8 + 9 + 6 + 24 = 76

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 76 is 80. The difference is the calculated check digit.

80 - 76 = 4

This NPI is valid

The calculated check digit is 4, which matches the last digit of 1316889934.