ROBERT DOUGLAS WILLIS D.D.S.
NPI 1700946381
Dentist - Pediatric Dentistry in Liverpool, NY

NPI Status: Active since December 12, 2006

Contact Information

7282 OSWEGO RD
LIVERPOOL, NY
ZIP 13090
Phone: (315) 451-6260
Fax: (315) 451-1022

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  • Individual
  • Male
  • Dentist
  • Pediatric Dentistry

About ROBERT WILLIS

This page provides the complete NPI Profile along with additional information for Robert Willis, a provider established in Liverpool, New York with a medical specialization in Dentist, focusing in pediatric dentistry . The healthcare provider is registered in the NPI registry with number 1700946381 assigned on December 2006. The practitioner's primary taxonomy code is 1223P0221X with license number 033342 (NY). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1700946381
Provider Name
ROBERT DOUGLAS WILLIS D.D.S.
Gender
Male
Entity Type
Individual
Location Address
7282 OSWEGO RD LIVERPOOL, NY 13090
Location Phone
(315) 451-6260
Location Fax
(315) 451-1022
Mailing Address
7282 OSWEGO RD LIVERPOOL, NY 13090
Mailing Phone
(315) 451-6260
Mailing Fax
(315) 451-1022
Is Sole Proprietor?
No
Enumeration Date
12-12-2006
Last Update Date
07-08-2007
Code Navigator

A dentist like Robert Willis 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 Pediatric Dentistry

Taxonomy Code
1223P0221X
Type
Dental Providers
License No.
033342
License State
NY
Taxonomy Description
An age-defined specialty that provides both primary and comprehensive preventive and therapeutic oral health care for infants and children through adolescence, including those with special health care needs.

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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 1700946381, we treat the final digit (1) 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 59. The final step is to find the difference between that total and the next multiple of ten (60 - 59 = 1).

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
7
Unchanged
Pos 3
0
Doubled → 0
Pos 4
0
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
4
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
3
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
1
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 0 → 0 9 → 18 → 9 6 → 12 → 3 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 0 + 0 + 1 + 8 + 4 + 1 + 2 + 3 + 1 + 6 + 24 = 59

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

The next multiple of ten after 59 is 60. The difference is the calculated check digit.

60 - 59 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1700946381.

Other Providers at the Same Location


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

Dentist
7282 OSWEGO RD
LIVERPOOL, NY 13090
Dentist (Pediatric Dentistry)
7282 OSWEGO RD
LIVERPOOL, NY 13090
Clinic/Center (Dental)
7282 OSWEGO RD
LIVERPOOL, NY 13090

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1700946381, enumerated as an "individual" on December 12, 2006.

The provider is located at 7282 OSWEGO RD LIVERPOOL, NY 13090 and the phone number is (315) 451-6260.

Dentist with taxonomy code 1223P0221X and a focus in Pediatric Dentistry.