ALEX W NGO M.D.
NPI 1124245824
Pathology - Dermatopathology in West Hills, CA

NPI Status: Active since April 20, 2007

Contact Information

8403 FALLBROOK AVE
WEST HILLS, CA
ZIP 91304
Phone: (818) 737-6119
Fax: (818) 737-6216

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

Individual
Male
Pathology
Dermatopathology

About ALEX NGO

This page provides the complete NPI Profile along with additional information for Alex Ngo, a provider established in West Hills, California with a medical specialization in Pathology, focusing in dermatopathology . The healthcare provider is registered in the NPI registry with number 1124245824 assigned on April 2007. The practitioner's primary taxonomy code is 207ZD0900X with license number A42439 (CA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI: 1124245824
Provider Name: ALEX W NGO M.D.
Gender: Male
Entity Type: Individual
Location Address: 8403 FALLBROOK AVE WEST HILLS, CA 91304
Location Phone: (818) 737-6119
Location Fax: (818) 737-6216
Mailing Address: 8403 FALLBROOK AVE WEST HILLS, CA 91304
Mailing Phone: (818) 737-6119
Mailing Fax: (818) 737-6216
Is Sole Proprietor?: No
Enumeration Date: 04-20-2007
Last Update Date: 07-08-2007
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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: Pathology Dermatopathology
Taxonomy Code: 207ZD0900X
Type: Allopathic & Osteopathic Physicians
License No.: A42439
License State: CA
Taxonomy Description: A dermatopathologist is an expert in diagnosing and monitoring diseases of the skin including infectious, immunologic, degenerative, and neoplastic diseases. This entails the examination and interpretation of specially prepared tissue sections, cellular scrapings, and smears of skin lesions by means of light microscopy, electron microscopy, and fluorescence microscopy.

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 1124245824, we treat the final digit (4) 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 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 4).

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 → 4

Pos 4

Unchanged

Pos 5

Doubled → 4

Pos 6

Unchanged

Pos 7

Doubled → 10 → 1 + 0

Pos 8

Unchanged

Pos 9

Doubled → 4

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 2 → 4 2 → 4 5 → 10 → 1 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 4 + 4 + 4 + 4 + 1 + 0 + 8 + 4 + 24 = 56

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

The next multiple of ten after 56 is 60. The difference is the calculated check digit.

60 - 56 = 4

This NPI is valid

The calculated check digit is 4, which matches the last digit of 1124245824.