DR. DAVID J LEONG D.M.D.
NPI 1801015813
Dentist - General Practice in Antioch, CA

NPI Status: Active since April 25, 2007

Contact Information

2642B SOMERSVILLE RD
ANTIOCH, CA
ZIP 94509
Phone: (925) 778-4600
Fax: (925) 777-2061

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

About DAVID LEONG

This page provides the complete NPI Profile along with additional information for David Leong, a provider established in Antioch, California with a medical specialization in Dentist, focusing in general practice . The healthcare provider is registered in the NPI registry with number 1801015813 assigned on April 2007. The practitioner's primary taxonomy code is 1223G0001X with license number 38553 (CA). The provider is registered as an individual and his NPI record was last updated 18 years ago.

NPI
1801015813
Provider Name
DR. DAVID J LEONG D.M.D.
Gender
Male
Entity Type
Individual
Location Address
2642B SOMERSVILLE RD ANTIOCH, CA 94509
Location Phone
(925) 778-4600
Location Fax
(925) 777-2061
Mailing Address
3033 MIWOK WAY CLAYTON, CA 94517
Mailing Phone
(925) 672-7093
Is Sole Proprietor?
Yes
Enumeration Date
04-25-2007
Last Update Date
07-16-2008
Code Navigator

A dentist like David Leong 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.
38553
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.

Insurance Plans Accepted

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

  • Anthem Bronze Essential 10150 ($0 Virtual PCP + $0 Select Drugs + Incentives) - HMO
  • Anthem Bronze Essential 10150 Adult Dental/Vision ($0 Virtual PCP + $0 Select Drugs + Incentives) - HMO
  • Anthem Bronze Essential 6500 HSA (+ Incentives) - HMO
  • Anthem Bronze Essential 7500 Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) - HMO
  • Anthem Bronze Essential POS 5500 ($0 Virtual PCP + $0 Select Drugs + Incentives) - POS
  • Anthem Bronze Essential POS 7500 Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) - POS
  • Anthem Bronze Pathway 10150 ($0 Virtual PCP + $0 Select Drugs + Incentives) - EPO
  • Anthem Bronze Pathway 10600 ($0 Virtual PCP + $0 Select Drugs) - HMO
  • Anthem Bronze Pathway 10600 Adult Dental/Vision ($0 Virtual PCP + $0 Select Drugs) - HMO
  • Anthem Bronze Pathway 6900 ($0 Virtual PCP + $0 Select Drugs + Incentives) - EPO
  • Anthem Bronze Pathway 7500 Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) - EPO
  • Anthem Bronze Pathway 7500 Standard ($0 Virtual PCP + $0 Select Drugs) - HMO
  • Anthem Bronze Pathway 8500 for HSA - HMO
  • Anthem Bronze Pathway/Lean 5000 (3 Free PCP Visits + $0 Select Drugs + Incentives) - HMO
  • Anthem Bronze Pathway/Lean HSA (+ Incentives) - HMO
  • Anthem Bronze Pathway/Lean Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) - HMO
  • Anthem Catastrophic Essential (+ Incentives) - HMO
  • Anthem Catastrophic Pathway (+ Incentives) - EPO
  • Anthem Gold Essential 2000 Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) - HMO
  • Anthem Gold Essential 2200 ($0 Virtual PCP + $0 Select Drugs + Incentives) - HMO
  • 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
  • Humana Dental Smart Choice - PPO
  • Humana Dental Smart Choice - Basic - PPO
  • Humana Dental Smart Choice - High - PPO
  • Humana Dental Smart Choice - Lite - PPO
  • Humana Dental Smart Choice - Low - PPO

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

Reviews for DR. DAVID J LEONG D.M.D.

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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 1801015813, we treat the final digit (3) 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 47. The final step is to find the difference between that total and the next multiple of ten (50 - 47 = 3).

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

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 0 + 1 + 0 + 1 + 1 + 0 + 8 + 2 + 24 = 47

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

The next multiple of ten after 47 is 50. The difference is the calculated check digit.

50 - 47 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1801015813.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Dentist (General Practice)
2642B SOMERSVILLE RD
ANTIOCH, CA 94509

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1801015813, enumerated as an "individual" on April 25, 2007.

The provider is located at 2642B SOMERSVILLE RD ANTIOCH, CA 94509 and the phone number is (925) 778-4600.

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

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