MATTHEW DRUCKENBROD MD
NPI 1770221186
Physical Medicine & Rehabilitation - Sports Medicine in Chicago, IL

NPI Status: Active since May 25, 2022

Contact Information

355 E ERIE ST
CHICAGO, IL
ZIP 60611
Phone: (312) 238-1000

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
Physical Medicine & Rehabilitation
Sports Medicine

About MATTHEW DRUCKENBROD

This page provides the complete NPI Profile along with additional information for Matthew Druckenbrod, a provider established in Chicago, Illinois with a medical specialization in Physical Medicine & Rehabilitation, focusing in sports medicine . The healthcare provider is registered in the NPI registry with number 1770221186 assigned on May 2022. The practitioner's primary taxonomy code is 2081S0010X with license number 125087149 (IL). The provider is registered as an individual and his NPI record was last updated July 2026.

NPI: 1770221186
Provider Name: MATTHEW DRUCKENBROD MD
Gender: Male
Entity Type: Individual
Location Address: 355 E ERIE ST CHICAGO, IL 60611
Location Phone: (312) 238-1000
Mailing Address: 355 E ERIE ST CHICAGO, IL 60611
Is Sole Proprietor?: Yes
Enumeration Date: 05-25-2022
Last Update Date: 07-01-2026
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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: Physical Medicine & Rehabilitation Sports Medicine
Taxonomy Code: 2081S0010X
Type: Allopathic & Osteopathic Physicians
License No.: 125087149
License State: IL
Taxonomy Description: A physician who specializes in Sports Medicine is responsible for continuous care related to the enhancement of health and fitness as well as the prevention of injury and illness. The specialist possesses knowledge and experience in the promotion of wellness and the prevention of injury from many areas of medicine such as exercise physiology, biomechanics, nutrition, psychology, physical rehabilitation, epidemiology, physical evaluation and injuries. It is the goal of a Sports Medicine specialist to improve the healthcare of the individual engaged in physical exercise.

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 1770221186, we treat the final digit (6) 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 54. The final step is to find the difference between that total and the next multiple of ten (60 - 54 = 6).

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 → 14 → 1 + 4

Pos 4

Unchanged

Pos 5

Doubled → 4

Pos 6

Unchanged

Pos 7

Doubled → 2

Pos 8

Unchanged

Pos 9

Doubled → 16 → 1 + 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 7 → 14 → 5 2 → 4 1 → 2 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 1 + 4 + 0 + 4 + 2 + 2 + 1 + 1 + 6 + 24 = 54

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

The next multiple of ten after 54 is 60. The difference is the calculated check digit.

60 - 54 = 6

This NPI is valid

The calculated check digit is 6, which matches the last digit of 1770221186.