DR. CHRISTOPHER JOHN LEONARD D.D.S
NPI 1275657066
Dentist - General Practice in Chicago, IL

NPI Status: Active since March 18, 2007

Contact Information

1645 W JACKSON BLVD
SUITE 210
CHICAGO, IL
ZIP 60612
Phone: (312) 942-0200

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  • Individual
  • Male
  • Dentist
  • General Practice
  • Accepts Insurance

About CHRISTOPHER LEONARD

This page provides the complete NPI Profile along with additional information for Christopher Leonard, a provider established in Chicago, Illinois with a medical specialization in Dentist, focusing in general practice . The healthcare provider is registered in the NPI registry with number 1275657066 assigned on March 2007. The practitioner's primary taxonomy code is 1223G0001X. The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1275657066
Provider Name
DR. CHRISTOPHER JOHN LEONARD D.D.S
Gender
Male
Entity Type
Individual
Location Address
1645 W JACKSON BLVD SUITE 210 CHICAGO, IL 60612
Location Phone
(312) 942-0200
Mailing Address
1645 W JACKSON BLVD SUITE 210 CHICAGO, IL 60612
Is Sole Proprietor?
No
Enumeration Date
03-18-2007
Last Update Date
07-08-2007
Code Navigator

A dentist like Christopher Leonard 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 General Practice

Taxonomy Code
1223G0001X
Type
Dental Providers
License State
IL
Taxonomy Description
A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.

Insurance Plans Accepted

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

  • BlueCare Dental 4 Kids? 1A - PPO
  • BlueCare Dental 4 Kids? 1B - PPO
  • BlueCare Dental? 1A - PPO
  • BlueCare Dental? 1B - PPO
  • BlueCare Dental? 1C - PPO
  • BlueCare Dental? 1D - PPO
  • BlueCare Dental 4 Kids? 1A - PPO
  • BlueCare Dental 4 Kids? 1B - PPO
  • BlueCare Dental? 1A - PPO
  • BlueCare Dental? 1B - PPO
  • BlueCare Dental? 1C - PPO
  • BlueCare Dental? 1D - PPO
  • BlueCare Dental 1D - PPO
  • BlueCare Dental 4 Kids? 1A - PPO
  • BlueCare Dental 4 Kids? 1B - PPO
  • BlueCare Dental? 1A - PPO
  • BlueCare Dental? 1B - PPO
  • BlueCare Dental? 1C - PPO

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

Reviews for DR. CHRISTOPHER JOHN LEONARD D.D.S

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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 1275657066, 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 54. The final step is to find the difference between that total and the next multiple of ten (60 - 54 = 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
2
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
5
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
5
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
0
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
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 7 → 14 → 5 6 → 12 → 3 7 → 14 → 5 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 + 2 + 5 + 1 + 4 + 0 + 1 + 2 + 24 = 54

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

The next multiple of ten after 54 is 60. The difference is the calculated check digit.

60 - 54 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1275657066.

Other Providers at the Same Location


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

Internal Medicine
1645 W JACKSON BLVD, SUITE 675
CHICAGO, IL 60612
Pediatrics
1645 W JACKSON BLVD, STE 200
CHICAGO, IL 60612
Pediatrics
1645 W JACKSON BLVD, SUITE 215
CHICAGO, IL 60612
Pediatrics
1645 W JACKSON BLVD, SUITE 200
CHICAGO, IL 60612
Pediatrics
1645 W JACKSON BLVD, SUITE 200
CHICAGO, IL 60612
Pediatrics
1645 W JACKSON BLVD, SUITE 200
CHICAGO, IL 60612
Pediatrics
1645 W JACKSON BLVD, SUITE 200
CHICAGO, IL 60612
Pediatrics
1645 W JACKSON BLVD, SUITE 200
CHICAGO, IL 60612
Obstetrics & Gynecology
1645 W JACKSON BLVD, SUITE 310
CHICAGO, IL 60612
Obstetrics & Gynecology
1645 W JACKSON BLVD, SUITE 310
CHICAGO, IL 60612
Obstetrics & Gynecology
1645 W JACKSON BLVD, SUITE 310
CHICAGO, IL 60612
Obstetrics & Gynecology
1645 W JACKSON BLVD, SUITE 310
CHICAGO, IL 60612
Internal Medicine (Adolescent Medicine)
1645 W JACKSON BLVD, SUITE 215
CHICAGO, IL 60612
Pediatrics
1645 W JACKSON BLVD, SUITE 200
CHICAGO, IL 60612
Obstetrics & Gynecology
1645 W JACKSON BLVD, SUITE 318
CHICAGO, IL 60612
Nurse Practitioner
1645 W JACKSON BLVD, SUITE 310
CHICAGO, IL 60612
Dentist (General Practice)
1645 W JACKSON BLVD, SUITE 210
CHICAGO, IL 60612
Dentist (General Practice)
1645 W JACKSON BLVD, STE 210
CHICAGO, IL 60612
Psychologist (Clinical)
1645 W JACKSON BLVD, SUITE 400
CHICAGO, IL 60612
Pediatrics
1645 W JACKSON BLVD, SUITE 200
CHICAGO, IL 60612

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1275657066, enumerated as an "individual" on March 18, 2007.

The provider is located at 1645 W JACKSON BLVD SUITE 210 CHICAGO, IL 60612 and the phone number is (312) 942-0200.

Dentist with taxonomy code 1223G0001X and a focus in General Practice.

The provider might be accepting Accepts: Blue Cross and Blue Shield of Montana, Blue Cross. Please consult your insurance carrier or call the provider to verify.