DR. YOSHIKI RICHARD TOKUYAMA DDS
NPI 1184758997
Dentist - Oral and Maxillofacial Surgery in Westlake Village, CA

NPI Status: Active since March 15, 2007

Contact Information

911 HAMPSHIRE RD
SUITE 4
WESTLAKE VILLAGE, CA
ZIP 91361
Phone: (805) 495-7416
Fax: (805) 495-0086

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  • Individual
  • Male
  • Dentist
  • Oral and Maxillofacial Surgery

About YOSHIKI TOKUYAMA

This page provides the complete NPI Profile along with additional information for Yoshiki Tokuyama, a provider established in Westlake Village, California with a medical specialization in Dentist, focusing in oral and maxillofacial surgery . The healthcare provider is registered in the NPI registry with number 1184758997 assigned on March 2007. The practitioner's primary taxonomy code is 1223S0112X with license number 19392 (CA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1184758997
Provider Name
DR. YOSHIKI RICHARD TOKUYAMA DDS
Gender
Male
Entity Type
Individual
Location Address
911 HAMPSHIRE RD SUITE 4 WESTLAKE VILLAGE, CA 91361
Location Phone
(805) 495-7416
Location Fax
(805) 495-0086
Mailing Address
911 HAMPSHIRE RD SUITE 4 WESTLAKE VILLAGE, CA 91361
Mailing Phone
(805) 495-7416
Mailing Fax
(805) 495-0086
Is Sole Proprietor?
No
Enumeration Date
03-15-2007
Last Update Date
07-08-2007
Code Navigator

A dentist like Yoshiki Tokuyama 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.

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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 Oral and Maxillofacial Surgery

Taxonomy Code
1223S0112X
Type
Dental Providers
License No.
19392
License State
CA
Taxonomy Description
An oral and maxillofacial surgery dentist specialized in the diagnosis, surgical and adjunctive treatment of diseases, injuries and defects involving both the functional and esthetic aspects of the hard and soft tissues of the oral and maxillofacial region.

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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 1184758997, we treat the final digit (7) 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 73. The final step is to find the difference between that total and the next multiple of ten (80 - 73 = 7).

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
8
Doubled → 16 → 1 + 6
Pos 4
4
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
5
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
9
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
7
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 8 → 16 → 7 7 → 14 → 5 8 → 16 → 7 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 1 + 6 + 4 + 1 + 4 + 5 + 1 + 6 + 9 + 1 + 8 + 24 = 73

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

The next multiple of ten after 73 is 80. The difference is the calculated check digit.

80 - 73 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1184758997.

Other Providers at the Same Location


The following 7 providers are registered at the same or a nearby location.

Surgery (Plastic and Reconstructive Surgery)
911 HAMPSHIRE RD, SUITE 1
WESTLAKE VILLAGE, CA 91361
Dentist (Oral and Maxillofacial Surgery)
911 HAMPSHIRE RD, STE. 4
WESTLAKE VILLAGE, CA 91361
Dentist (Oral and Maxillofacial Surgery)
911 HAMPSHIRE RD, SUITE #4
WESTLAKE VILLAGE, CA 91361
Dentist (Prosthodontics)
911 HAMPSHIRE RD, SUITE 5
WESTLAKE VILLAGE, CA 91361
Dentist (Prosthodontics)
911 HAMPSHIRE RD, SUITE 5
WESTLAKE VILLAGE, CA 91361
Dentist (General Practice)
911 HAMPSHIRE RD, SUITE 1
WESTLAKE VLG, CA 91361
Dentist (General Practice)
911 HAMPSHIRE RD, SUITE 1
WESTLAKE VLG, CA 91361

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1184758997, enumerated as an "individual" on March 15, 2007.

The provider is located at 911 HAMPSHIRE RD SUITE 4 WESTLAKE VILLAGE, CA 91361 and the phone number is (805) 495-7416.

Dentist with taxonomy code 1223S0112X and a focus in Oral and Maxillofacial Surgery.