DAVIES DENTAL SERVICES, PLLC
NPI 1780567644
Clinic/Center - Dental in Norridge, IL

NPI Status: Active since July 29, 2025

Contact Information

5307 N HARLEM AVE
NORRIDGE, IL
ZIP 60656
Phone: (708) 910-8719

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  • Organization
  • Clinic/Center
  • Dental

About DAVIES DENTAL SERVICES, PLLC

This page provides the complete NPI Profile along with additional information for Davies Dental Services, Pllc, a provider established in Norridge, Illinois operating as a Clinic/center, focusing in dental . The healthcare provider is registered in the NPI registry with number 1780567644 assigned on July 2025. The practitioner's primary taxonomy code is 261QD0000X. The provider is registered as an organization and their NPI record was last updated one year ago. The authorized official of this NPI record is Dr. Joseph Theodore Davies Dmd (Authorized Official)

NPI
1780567644
Provider Name
DAVIES DENTAL SERVICES, PLLC
Entity Type
Organization
Location Address
5307 N HARLEM AVE NORRIDGE, IL 60656
Location Phone
(708) 910-8719
Mailing Address
6220 177TH ST TINLEY PARK, IL 60477
Mailing Phone
(708) 910-8719
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
07-29-2025
Last Update Date
07-29-2025
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Location Map

Secondary Locations

  • 649 N 1st Bank Dr
    Palatine, IL 60067
    (708) 910-8719
  • 586 Duane St Ste 301
    Glen Ellyn, IL 60137
    (708) 910-8719

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

Clinic/Center Dental

Taxonomy Code
261QD0000X
Type
Ambulatory Health Care Facilities

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

DR. JOSEPH THEODORE DAVIES DMD

Authorized Official Title
AUTHORIZED OFFICIAL
Authorized Official Phone
(708) 910-8719

Reviews for DAVIES DENTAL SERVICES, PLLC

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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 1780567644, 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 66. The final step is to find the difference between that total and the next multiple of ten (70 - 66 = 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
1
Doubled → 2
Pos 2
7
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
0
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
6
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
6
Unchanged
Pos 9
4
Doubled → 8
Check
4
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 5 → 10 → 1 7 → 14 → 5 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 1 + 6 + 0 + 1 + 0 + 6 + 1 + 4 + 6 + 8 + 24 = 66

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

The next multiple of ten after 66 is 70. The difference is the calculated check digit.

70 - 66 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1780567644.

Other Providers at the Same Location


The following 2 providers are registered at the same or a nearby location.

Dentist
5307 N HARLEM AVE
CHICAGO, IL 60656
Dentist (General Practice)
5307 N HARLEM AVE
CHICAGO, IL 60656

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1780567644, enumerated as an "organization" on July 29, 2025.

The provider is located at 5307 N HARLEM AVE NORRIDGE, IL 60656 and the phone number is (708) 910-8719.

Clinic/Center with taxonomy code 261QD0000X and a focus in Dental.