JOSHUA ALLEN DDS
NPI 1922783075
Dentist - Oral and Maxillofacial Pathology in Chicago, IL

NPI Status: Active since June 16, 2023

Contact Information

5841 S MARYLAND AVE # MC3083
CHICAGO, IL
ZIP 60637
Phone: (773) 834-9667

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

Individual
Male
Dentist
Oral and Maxillofacial Pathology

About JOSHUA ALLEN

This page provides the complete NPI Profile along with additional information for Joshua Allen, a provider established in Chicago, Illinois with a medical specialization in Dentist, focusing in oral and maxillofacial pathology . The healthcare provider is registered in the NPI registry with number 1922783075 assigned on June 2023. The practitioner's primary taxonomy code is 1223P0106X with license number 019.036949 (IL). The provider is registered as an individual and his NPI record was last updated May 2026.

NPI: 1922783075
Provider Name: JOSHUA ALLEN DDS
Gender: Male
Entity Type: Individual
Location Address: 5841 S MARYLAND AVE # MC3083 CHICAGO, IL 60637
Location Phone: (773) 834-9667
Mailing Address: 180 HARVESTER DR STE 110 BURR RIDGE, IL 60527
Mailing Phone: (773) 702-1150
Is Sole Proprietor?: No
Enumeration Date: 06-16-2023
Last Update Date: 05-16-2026
Code Navigator

A dentist like Joshua Allen is a skilled in and licensed provider that diagnoses and treats problems with patients teeth, gums, and related parts of the mouth. Dentists educate patients on how to take care of the teeth and gums and provide information on diet choices that affect oral health. Dentists must be licensed in the state in which they work.

Location Map

Secondary Locations

3302 Gaston Ave
Dallas, TX 75246
(214) 828-8911

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: Dentist Oral and Maxillofacial Pathology
Taxonomy Code: 1223P0106X
Type: Dental Providers
License No.: 019.036949
License State: IL
Taxonomy Description: The specialty of dentistry and discipline of pathology that deals with the nature, identification, and management of diseases affecting the oral and maxillofacial regions. It is a science that investigates the causes, processes, and effects of these diseases. The practice of oral and maxillofacial pathology includes research and diagnosis of diseases using clinical, radiographic, microscopic, biochemical, or other examinations.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No.	Taxonomy Code	Type	Classification / Specialization	License No. (State)
1	390200000X	Student, Health Care	Student in an Organized Health Care Education/Training Program

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 1922783075, 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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 4

Pos 4

Unchanged

Pos 5

Doubled → 14 → 1 + 4

Pos 6

Unchanged

Pos 7

Doubled → 6

Pos 8

Unchanged

Pos 9

Doubled → 14 → 1 + 4

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 2 → 4 7 → 14 → 5 3 → 6 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 4 + 2 + 1 + 4 + 8 + 6 + 0 + 1 + 4 + 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 1922783075.