DR. WAI CHEUNG D.D.S.
NPI 1841320652
Dentist - General Practice in San Francisco, CA

NPI Status: Active since March 07, 2007

Contact Information

950 STOCKTON ST STE 400
SAN FRANCISCO, CA
ZIP 94108
Phone: (415) 834-5798
Fax: (415) 834-5793

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  • Individual
  • Male
  • Dentist
  • General Practice

About WAI CHEUNG

This page provides the complete NPI Profile along with additional information for Wai Cheung, a provider established in San Francisco, California with a medical specialization in Dentist, focusing in general practice . The healthcare provider is registered in the NPI registry with number 1841320652 assigned on March 2007. The practitioner's primary taxonomy code is 1223G0001X with license number 50736 (CA). The provider is registered as an individual and his NPI record was last updated 6 years ago.

NPI
1841320652
Provider Name
DR. WAI CHEUNG D.D.S.
Gender
Male
Entity Type
Individual
Location Address
950 STOCKTON ST STE 400 SAN FRANCISCO, CA 94108
Location Phone
(415) 834-5798
Location Fax
(415) 834-5793
Mailing Address
950 STOCKTON ST STE 400 SAN FRANCISCO, CA 94108
Mailing Phone
(415) 834-5798
Mailing Fax
(415) 834-5793
Is Sole Proprietor?
Yes
Enumeration Date
03-07-2007
Last Update Date
01-17-2020
Code Navigator

A dentist like Wai Cheung 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 No.
50736
License State
CA
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 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 1841320652, we treat the final digit (2) 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 58. The final step is to find the difference between that total and the next multiple of ten (60 - 58 = 2).

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
8
Unchanged
Pos 3
4
Doubled → 8
Pos 4
1
Unchanged
Pos 5
3
Doubled → 6
Pos 6
2
Unchanged
Pos 7
0
Doubled → 0
Pos 8
6
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
2
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 4 → 8 3 → 6 0 → 0 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 8 + 1 + 6 + 2 + 0 + 6 + 1 + 0 + 24 = 58

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

The next multiple of ten after 58 is 60. The difference is the calculated check digit.

60 - 58 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1841320652.

Other Providers at the Same Location


The following 2 providers are registered at the same or a nearby location.

Clinic/Center (Dental)
950 STOCKTON ST STE 400
SAN FRANCISCO, CA 94108
Dentist (General Practice)
950 STOCKTON ST STE 400
SAN FRANCISCO, CA 94108

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1841320652, enumerated as an "individual" on March 07, 2007.

The provider is located at 950 STOCKTON ST STE 400 SAN FRANCISCO, CA 94108 and the phone number is (415) 834-5798.

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