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

DR. STEPHEN V PERNS DPM
NPI 1184661845
Podiatrist - Foot & Ankle Surgery in Chicago, IL

Active since June 01, 2006
2850 S WABASH AVE, SUITE 100, CHICAGO, IL 60616(312) 842-4600(312) 842-8694 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

  • Individual
  • Male
  • Podiatrist
  • Foot & Ankle Surgery

About STEPHEN PERNS

This page provides the complete NPI Profile along with additional information for Stephen Perns, a provider established in Chicago, Illinois with a medical specialization in Podiatrist, focusing in foot & ankle surgery . The healthcare provider is registered in the NPI registry with number 1184661845 assigned on June 2006. The practitioner's primary taxonomy code is 213ES0103X. The provider is registered as an individual and his NPI record was last updated July 2026.

NPI
1184661845
Provider Name
DR. STEPHEN V PERNS DPM
Gender
Male
Entity Type
Individual
Location Address
2850 S WABASH AVE SUITE 100 CHICAGO, IL 60616
Location Phone
(312) 842-4600
Location Fax
(312) 842-8694
Mailing Address
2850 S WABASH AVE SUITE 100 CHICAGO, IL 60616
Mailing Phone
(312) 842-4600
Mailing Fax
(312) 842-8694
Is Sole Proprietor?
No
Enumeration Date
06-01-2006
Last Update Date
07-13-2026
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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 Foot & Ankle Surgery

Taxonomy Code
213ES0103X
Type
Podiatric Medicine & Surgery Service Providers
License State
IL

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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 1184661845, we treat the final digit (5) 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 65. The final step is to find the difference between that total and the next multiple of ten (70 - 65 = 5).

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
1
Doubled → 2
Pos 2
1
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
4
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
6
Unchanged
Pos 7
1
Doubled → 2
Pos 8
8
Unchanged
Pos 9
4
Doubled → 8
Check
5
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 8 → 16 → 7 6 → 12 → 3 1 → 2 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 1 + 6 + 4 + 1 + 2 + 6 + 2 + 8 + 8 + 24 = 65

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

The next multiple of ten after 65 is 70. The difference is the calculated check digit.

70 - 65 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1184661845.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Obstetrics & Gynecology
2850 S WABASH AVE, SUITE 106
CHICAGO, IL 60616
Urology
2850 S WABASH AVE, SUITE 106
CHICAGO, IL 60616
Orthopaedic Surgery
2850 S WABASH AVE, SUITE 100
CHICAGO, IL 60616
Orthopaedic Surgery
2850 S WABASH AVE, SUITE 100
CHICAGO, IL 60616
Orthopaedic Surgery
2850 S WABASH AVE, SUITE 100
CHICAGO, IL 60616
Orthopaedic Surgery
2850 S WABASH AVE, SUITE 100
CHICAGO, IL 60616
Home Health
2850 S WABASH AVE, SUITE 108
CHICAGO, IL 60616
Clinic/Center (Sleep Disorder Diagnostic)
2850 S WABASH AVE, SUITE #102
CHICAGO, IL 60616
Registered Nurse (Registered Nurse First Assistant)
2850 S WABASH AVE, SUITE 100
CHICAGO, IL 60616
Community/Behavioral Health
2850 S WABASH AVE
CHICAGO, IL 60616
Podiatrist (Foot & Ankle Surgery)
2850 S WABASH AVE, STE 206
CHICAGO, IL 60616
Internal Medicine (Sleep Medicine)
2850 S WABASH AVE
CHICAGO, IL 60616
Family Medicine
2850 S WABASH AVE, SUITE 203
CHICAGO, IL 60616
Family Medicine
2850 S WABASH AVE, SUITE 203
CHICAGO, IL 60616
Family Medicine
2850 S WABASH AVE, SUITE 203
CHICAGO, IL 60616
Preventive Medicine (Sports Medicine)
2850 S WABASH AVE, SUITE 100
CHICAGO, IL 60616
Urology
2850 S WABASH AVE, STE 106
CHICAGO, IL 60616
Psychiatry & Neurology (Neurology)
2850 S WABASH AVE, SUITE 102
CHICAGO, IL 60616
Psychiatry & Neurology (Neurology)
2850 S WABASH AVE, SUITE 102
CHICAGO, IL 60616
Urology
2850 S WABASH AVE, SUITE 106
CHICAGO, IL 60616

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1184661845, enumerated as an "individual" on June 01, 2006.

The provider is located at 2850 S WABASH AVE SUITE 100 CHICAGO, IL 60616 and the phone number is (312) 842-4600.

Podiatrist with taxonomy code 213ES0103X and a focus in Foot & Ankle Surgery.