COLBY JAMES AESTHETIC DENTISTRY PLLC
NPI 1679388367
Clinic/Center - Dental in Chicago, IL

NPI Status: Active since February 10, 2025

Contact Information

1009 W WEBSTER AVE
CHICAGO, IL
ZIP 60614
Phone: (312) 858-7067

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  • Organization
  • Clinic/Center
  • Dental

About COLBY JAMES AESTHETIC DENTISTRY PLLC

This page provides the complete NPI Profile along with additional information for Colby James Aesthetic Dentistry Pllc, a provider established in Chicago, Illinois operating as a Clinic/center, focusing in dental . The healthcare provider is registered in the NPI registry with number 1679388367 assigned on February 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. Colby J Gerth Dmd (Ceo/dentist)

NPI
1679388367
Provider Name
COLBY JAMES AESTHETIC DENTISTRY PLLC
Entity Type
Organization
Location Address
1009 W WEBSTER AVE CHICAGO, IL 60614
Location Phone
(312) 858-7067
Mailing Address
1009 W WEBSTER AVE CHICAGO, IL 60614
Mailing Phone
(312) 858-7067
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
02-10-2025
Last Update Date
02-10-2025
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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

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. COLBY J GERTH DMD

Authorized Official Title
CEO/DENTIST
Authorized Official Phone
(217) 663-2384

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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 1679388367, we treat the final digit (7) 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 73. The final step is to find the difference between that total and the next multiple of ten (80 - 73 = 7).

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
6
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
9
Unchanged
Pos 5
3
Doubled → 6
Pos 6
8
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
3
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
7
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 3 → 6 8 → 16 → 7 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 4 + 9 + 6 + 8 + 1 + 6 + 3 + 1 + 2 + 24 = 73

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

The next multiple of ten after 73 is 80. The difference is the calculated check digit.

80 - 73 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1679388367.

Other Providers at the Same Location


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

Dentist (Oral and Maxillofacial Surgery)
1009 W WEBSTER AVE
CHICAGO, IL 60614
Dentist (Periodontics)
1009 W WEBSTER AVE
CHICAGO, IL 60614

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1679388367, enumerated as an "organization" on February 10, 2025.

The provider is located at 1009 W WEBSTER AVE CHICAGO, IL 60614 and the phone number is (312) 858-7067.

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