DR. JOHN WILLIAM CLANCY DDS
NPI 1821155920
Dentist - General Practice in Glen Ellyn, IL
NPI Status: Active since January 02, 2007
Contact Information
22 N PARK BLVD
GLEN ELLYN, IL
ZIP 60137
Phone: (630) 858-3321
- Individual
- Male
- Dentist
- General Practice
About JOHN CLANCY
This page provides the complete NPI Profile along with additional information for John Clancy, a provider established in Glen Ellyn, Illinois with a medical specialization in Dentist, focusing in general practice . The healthcare provider is registered in the NPI registry with number 1821155920 assigned on January 2007. The practitioner's primary taxonomy code is 1223G0001X. The provider is registered as an individual and his NPI record was last updated 18 years ago.
- NPI
- 1821155920
- Provider Name
- DR. JOHN WILLIAM CLANCY DDS
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 22 N PARK BLVD GLEN ELLYN, IL 60137
- Location Phone
- (630) 858-3321
- Mailing Address
- 22 N PARK BLVD GLEN ELLYN, IL 60137
- Mailing Phone
- (630) 858-3321
- Is Sole Proprietor?
- No
- Enumeration Date
- 01-02-2007
- Last Update Date
- 07-08-2007
- Code Navigator
A dentist like John Clancy 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.
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NPI Validation Check Digit Calculation
The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.
| Start with the original NPI number, the last digit is the check digit and is not used in the calculation. | |||||||||
| 1 | 8 | 2 | 1 | 1 | 5 | 5 | 9 | 2 | 0 |
| Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
| 2 | 8 | 4 | 1 | 2 | 5 | 10 | 9 | 4 | |
| Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
| 2 + 8 + 4 + 1 + 2 + 5 + 1 + 0 + 9 + 4 + 24 = 60 | |||||||||
| Step 3: because the number obtained in step 2 ends in zero, the check digit is zero. | |||||||||
| 0 | |||||||||
The NPI number 1821155920 is valid because the calculated check digit 0 using the Luhn validation algorithm matches the last digit of the original NPI number.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1821155920, enumerated in the NPI registry as an "individual" on January 02, 2007
The provider is located at 22 N Park Blvd Glen Ellyn, Il 60137 and the phone number is (630) 858-3321
The provider's speciality is Dentist with taxonomy code 1223G0001X with a focus in General Practice
This NPI record was last updated on January 02, 2007. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
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