GEORGIOS KOTSAKIS DDS, PHD
NPI 1275909467
Dentist - Periodontics in Newark, NJ

NPI Status: Active since August 11, 2015

Contact Information

110 BERGEN STREET
NEWARK, NJ
ZIP 07103
Phone: (973) 972-4242

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  • Individual
  • Male
  • Dentist
  • Periodontics

About GEORGIOS KOTSAKIS

This page provides the complete NPI Profile along with additional information for Georgios Kotsakis, a provider established in Newark, New Jersey with a medical specialization in Dentist, focusing in periodontics . The healthcare provider is registered in the NPI registry with number 1275909467 assigned on August 2015. The practitioner's primary taxonomy code is 1223P0300X with license number 01644 (NJ). The provider is registered as an individual and his NPI record was last updated May 2026.

NPI
1275909467
Provider Name
GEORGIOS KOTSAKIS DDS, PHD
Gender
Male
Entity Type
Individual
Location Address
110 BERGEN STREET NEWARK, NJ 07103
Location Phone
(973) 972-4242
Mailing Address
110 BERGEN STREET D800 NEWARK, NJ 07103
Mailing Phone
(973) 972-7224
Is Sole Proprietor?
No
Enumeration Date
08-11-2015
Last Update Date
05-06-2026
Code Navigator

A dentist like Georgios Kotsakis 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

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 Periodontics

Taxonomy Code
1223P0300X
Type
Dental Providers
License No.
01644
License State
NJ
Taxonomy Description
That specialty of dentistry which encompasses the prevention, diagnosis and treatment of diseases of the supporting and surrounding tissues of the teeth or their substitutes and the maintenance of the health, function and esthetics of these structures and tissues.

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)
11223P0300XDental Providers

Dentist
Periodontics

DF60582867 (WA)

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
1159275MEDICAID (05)NJ 

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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 1275909467, 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 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
2
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
5
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
0
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
4
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 9 → 18 → 9 9 → 18 → 9 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 1 + 4 + 5 + 1 + 8 + 0 + 1 + 8 + 4 + 1 + 2 + 24 = 63

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

The next multiple of ten after 63 is 70. The difference is the calculated check digit.

70 - 63 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1275909467.

Other Providers at the Same Location


The following 3 providers are registered at the same or a nearby location.

Dentist (Orthodontics and Dentofacial Orthopedics)
110 BERGEN STREET, UMDNJ-NEW JERSEY DENTAL SCHOOL- ROOM
NEWARK, NJ 07103
Dentist
110 BERGEN STREET, NEW JERSEY DENTAL SCHOOL
NEWARK, NJ 07103
Dentist (General Practice)
110 BERGEN STREET, RUTGERS SCHOOL OF DENTAL MEDICINE
NEWARK, NJ 07103

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1275909467, enumerated as an "individual" on August 11, 2015.

The provider is located at 110 BERGEN STREET NEWARK, NJ 07103 and the phone number is (973) 972-4242.

Dentist with taxonomy code 1223P0300X and a focus in Periodontics.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.