DR. WILLIAM JOSEPH CHENG D.D.S.
NPI 1114274941
Dentist - General Practice in Santa Monica, CA

NPI Status: Active since August 10, 2012

Contact Information

620 MONTANA AVE
SANTA MONICA, CA
ZIP 90403
Phone: (310) 451-5563

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  • Individual
  • Male
  • Dentist
  • General Practice

About WILLIAM CHENG

This page provides the complete NPI Profile along with additional information for William Cheng, a provider established in Santa Monica, California with a medical specialization in Dentist, focusing in general practice . The healthcare provider is registered in the NPI registry with number 1114274941 assigned on August 2012. The practitioner's primary taxonomy code is 1223G0001X with license number 61674 (CA). The provider is registered as an individual and his NPI record was last updated 14 years ago.

NPI
1114274941
Provider Name
DR. WILLIAM JOSEPH CHENG D.D.S.
Gender
Male
Entity Type
Individual
Location Address
620 MONTANA AVE SANTA MONICA, CA 90403
Location Phone
(310) 451-5563
Mailing Address
870 HILGARD AVE APT 318 LOS ANGELES, CA 90024
Mailing Phone
(626) 551-8992
Is Sole Proprietor?
No
Enumeration Date
08-10-2012
Last Update Date
08-10-2012
Code Navigator

A dentist like William Cheng 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.
61674
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.

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)
1122300000XDental Providers

Dentist

61674 (CA)

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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 1114274941, 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 69. The final step is to find the difference between that total and the next multiple of ten (70 - 69 = 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
1
Unchanged
Pos 3
1
Doubled → 2
Pos 4
4
Unchanged
Pos 5
2
Doubled → 4
Pos 6
7
Unchanged
Pos 7
4
Doubled → 8
Pos 8
9
Unchanged
Pos 9
4
Doubled → 8
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 1 → 2 2 → 4 4 → 8 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 2 + 4 + 4 + 7 + 8 + 9 + 8 + 24 = 69

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

The next multiple of ten after 69 is 70. The difference is the calculated check digit.

70 - 69 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1114274941.

Other Providers at the Same Location


The following 4 providers are registered at the same or a nearby location.

Dentist (General Practice)
620 MONTANA AVE
SANTA MONICA, CA 90403
Dentist (General Practice)
620 MONTANA AVE
SANTA MONICA, CA 90403
Dentist (General Practice)
620 MONTANA AVE
SANTA MONICA, CA 90403
Dentist
620 MONTANA AVE
SANTA MONICA, CA 90403

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1114274941, enumerated as an "individual" on August 10, 2012.

The provider is located at 620 MONTANA AVE SANTA MONICA, CA 90403 and the phone number is (310) 451-5563.

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