DR. JUSTIN D ZALEWSKY DMD, MS
NPI 1669570586
Dentist - Periodontics in Alexandria, VA

NPI Status: Active since September 21, 2006

Contact Information

4660 KENMORE AVE
SUITE 300
ALEXANDRIA, VA
ZIP 22304
Phone: (703) 823-2422
Fax: (703) 842-8671

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  • Individual
  • Male
  • Dentist
  • Periodontics

About JUSTIN ZALEWSKY

This page provides the complete NPI Profile along with additional information for Justin Zalewsky, a provider established in Alexandria, Virginia with a medical specialization in Dentist, focusing in periodontics . The healthcare provider is registered in the NPI registry with number 1669570586 assigned on September 2006. The practitioner's primary taxonomy code is 1223P0300X with license number 0401412998 (VA). The provider is registered as an individual and his NPI record was last updated 16 years ago.

NPI
1669570586
Provider Name
DR. JUSTIN D ZALEWSKY DMD, MS
Gender
Male
Entity Type
Individual
Location Address
4660 KENMORE AVE SUITE 300 ALEXANDRIA, VA 22304
Location Phone
(703) 823-2422
Location Fax
(703) 842-8671
Mailing Address
4660 KENMORE AVE SUITE 300 ALEXANDRIA, VA 22304
Mailing Phone
(703) 823-2422
Mailing Fax
(703) 842-8671
Is Sole Proprietor?
No
Enumeration Date
09-21-2006
Last Update Date
09-22-2010
Code Navigator

A dentist like Justin Zalewsky 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.
0401412998
License State
VA
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

DEN1000491 (DC)
21223P0300XDental Providers

Dentist
Periodontics

DS036545 (PA)

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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 1669570586, 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 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
1
Doubled → 2
Pos 2
6
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
9
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
7
Unchanged
Pos 7
0
Doubled → 0
Pos 8
5
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
6
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 6 → 12 → 3 5 → 10 → 1 0 → 0 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 2 + 9 + 1 + 0 + 7 + 0 + 5 + 1 + 6 + 24 = 64

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

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1669570586.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Surgery
4660 KENMORE AVE, STE 220
ALEXANDRIA, VA 22304
Ophthalmology
4660 KENMORE AVE, SUITE 416
ALEXANDRIA, VA 22304
Urology
4660 KENMORE AVE, SUITE 735
ALEXANDRIA, VA 22304
Specialist
4660 KENMORE AVE, SUITE 900
ALEXANDRIA, VA 22304
Internal Medicine
4660 KENMORE AVE, SUITE 600
ALEXANDRIA, VA 22304
Dermatology
4660 KENMORE AVE, SUITE 500
ALEXANDRIA, VA 22304
Internal Medicine (Hematology & Oncology)
4660 KENMORE AVE, SUITE 1018
ALEXANDRIA, VA 22304
Internal Medicine
4660 KENMORE AVE, SUITE 710
ALEXANDRIA, VA 22304
Internal Medicine
4660 KENMORE AVE, SUITE 710
ALEXANDRIA, VA 22304
Audiologist-Hearing Aid Fitter
4660 KENMORE AVE, STE 409
ALEXANDRIA, VA 22304
Dentist (Oral and Maxillofacial Surgery)
4660 KENMORE AVE, SUITE # 204
ALEXANDRIA, VA 22304
Hearing Instrument Specialist
4660 KENMORE AVE, # 409
ALEXANDRIA, VA 22304
Surgery
4660 KENMORE AVE, SUITE 419
ALEXANDRIA, VA 22304
Obstetrics & Gynecology
4660 KENMORE AVE, STE 1100
ALEXANDRIA, VA 22304
Obstetrics & Gynecology
4660 KENMORE AVE, SUITE 1100
ALEXANDRIA, VA 22304
Obstetrics & Gynecology
4660 KENMORE AVE, SUITE 1100
ALEXANDRIA, VA 22304
Psychiatry & Neurology (Neurology)
4660 KENMORE AVE, SUITE 408
ALEXANDRIA, VA 22304
Internal Medicine (Gastroenterology)
4660 KENMORE AVE, SUITE 1206
ALEXANDRIA, VA 22304
Internal Medicine (Gastroenterology)
4660 KENMORE AVE, #305
ALEXANDRIA, VA 22304
Obstetrics & Gynecology (Gynecology)
4660 KENMORE AVE, SUITE 902
ALEXANDRIA, VA 22304

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1669570586, enumerated as an "individual" on September 21, 2006.

The provider is located at 4660 KENMORE AVE SUITE 300 ALEXANDRIA, VA 22304 and the phone number is (703) 823-2422.

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