DR. BRIAN HWANG M.D.
NPI 1548421969
Surgery - Plastic and Reconstructive Surgery in West Hills, CA

NPI Status: Active since June 18, 2008

Contact Information

23101 SHERMAN PL STE 301
WEST HILLS, CA
ZIP 91307
Phone: (818) 887-5000
Fax: (818) 887-5003

NPI Profile Information
Primary Taxonomy
Secondary Locations
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Male
Surgery
Plastic and Reconstructive Surgery

About BRIAN HWANG

This page provides the complete NPI Profile along with additional information for Brian Hwang, a provider established in West Hills, California with a medical specialization in Surgery, focusing in plastic and reconstructive surgery . The healthcare provider is registered in the NPI registry with number 1548421969 assigned on June 2008. The practitioner's primary taxonomy code is 2086S0122X with license number A117445 (CA). The provider is registered as an individual and his NPI record was last updated 7 years ago.

NPI: 1548421969
Provider Name: DR. BRIAN HWANG M.D.
Gender: Male
Entity Type: Individual
Location Address: 23101 SHERMAN PL STE 301 WEST HILLS, CA 91307
Location Phone: (818) 887-5000
Location Fax: (818) 887-5003
Mailing Address: 23101 SHERMAN PL STE 301 WEST HILLS, CA 91307
Mailing Phone: (818) 887-5000
Mailing Fax: (818) 887-5003
Is Sole Proprietor?: No
Enumeration Date: 06-18-2008
Last Update Date: 02-01-2019
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Location Map

Secondary Locations

165 Sierra Azule
Los Gatos, CA 95032
(408) 608-9481

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: Surgery Plastic and Reconstructive Surgery
Taxonomy Code: 2086S0122X
Type: Allopathic & Osteopathic Physicians
License No.: A117445
License State: CA
Taxonomy Description: A surgeon who specializes in plastic and reconstructive surgery.

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 1548421969, we treat the final digit (9) 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 71. The final step is to find the difference between that total and the next multiple of ten (80 - 71 = 9).

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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 8

Pos 4

Unchanged

Pos 5

Doubled → 8

Pos 6

Unchanged

Pos 7

Doubled → 2

Pos 8

Unchanged

Pos 9

Doubled → 12 → 1 + 2

Check

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 4 → 8 1 → 2 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 8 + 8 + 8 + 2 + 2 + 9 + 1 + 2 + 24 = 71

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

The next multiple of ten after 71 is 80. The difference is the calculated check digit.

80 - 71 = 9

This NPI is valid

The calculated check digit is 9, which matches the last digit of 1548421969.