DAVID GIANG
NPI 1073864500
Specialist in San Francisco, CA

NPI Status: Active since September 24, 2012

Contact Information

1735 MISSION ST
SAN FRANCISCO, CA
ZIP 94103
Phone: (415) 750-5111
Fax: (415) 386-2048

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  • Individual
  • Male
  • Specialist

About DAVID GIANG

This page provides the complete NPI Profile along with additional information for David Giang, a provider established in San Francisco, California with a medical specialization in Specialist. The healthcare provider is registered in the NPI registry with number 1073864500 assigned on September 2012. The practitioner's primary taxonomy code is 174400000X. The provider is registered as an individual and his NPI record was last updated 12 years ago.

NPI
1073864500
Provider Name
DAVID GIANG
Gender
Male
Entity Type
Individual
Location Address
1735 MISSION ST SAN FRANCISCO, CA 94103
Location Phone
(415) 750-5111
Location Fax
(415) 386-2048
Mailing Address
1735 MISSION ST SAN FRANCISCO, CA 94103
Mailing Phone
(415) 750-5111
Mailing Fax
(415) 386-2048
Is Sole Proprietor?
Yes
Enumeration Date
09-24-2012
Last Update Date
01-16-2014
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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

Specialist

Taxonomy Code
174400000X
Type
Other Service Providers
Taxonomy Description
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

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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 1073864500, we treat the final digit (0) 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 60. The final step is to find the difference between that total and the next multiple of ten (60 - 60 = 0).

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
0
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
3
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
6
Unchanged
Pos 7
4
Doubled → 8
Pos 8
5
Unchanged
Pos 9
0
Doubled → 0
Check
0
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 7 → 14 → 5 8 → 16 → 7 4 → 8 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 1 + 4 + 3 + 1 + 6 + 6 + 8 + 5 + 0 + 24 = 60

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

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

60 - 60 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1073864500.

Other Providers at the Same Location


The following 19 providers are registered at the same or a nearby location.

Psychologist (Clinical)
1735 MISSION ST
SAN FRANCISCO, CA 94103
Clinic/Center (Rehabilitation)
1735 MISSION ST
SAN FRANCISCO, CA 94103
Counselor
1735 MISSION ST
SAN FRANCISCO, CA 94103
Counselor (Addiction (Substance Use Disorder))
1735 MISSION ST
SAN FRANCISCO, CA 94103
Counselor
1735 MISSION ST
SAN FRANCISCO, CA 94103
Social Worker (Clinical)
1735 MISSION ST
SAN FRANCISCO, CA 94103
Psychologist (Clinical)
1735 MISSION ST
SAN FRANCISCO, CA 94103
Marriage & Family Therapist
1735 MISSION ST
SAN FRANCISCO, CA 94103
Counselor (Mental Health)
1735 MISSION ST, HAIGHT STREET FREE CLINIC INC.
SAN FRANCISCO, CA 94103
Marriage & Family Therapist
1735 MISSION ST
SAN FRANCISCO, CA 94103
Nurse Practitioner
1735 MISSION ST
SAN FRANCISCO, CA 94103
Counselor
1735 MISSION ST
SAN FRANCISCO, CA 94103
Counselor (Addiction (Substance Use Disorder))
1735 MISSION ST
SAN FRANCISCO, CA 94103
Psychologist
1735 MISSION ST
SAN FRANCISCO, CA 94103
Counselor (Addiction (Substance Use Disorder))
1735 MISSION ST
SAN FRANCISCO, CA 94103
Counselor (Addiction (Substance Use Disorder))
1735 MISSION ST
SAN FRANCISCO, CA 94103
Counselor (Addiction (Substance Use Disorder))
1735 MISSION ST
SAN FRANCISCO, CA 94103
Counselor (Addiction (Substance Use Disorder))
1735 MISSION ST
SAN FRANCISCO, CA 94103
Technician, Health Information
1735 MISSION ST
SAN FRANCISCO, CA 94103

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1073864500, enumerated as an "individual" on September 24, 2012.

The provider is located at 1735 MISSION ST SAN FRANCISCO, CA 94103 and the phone number is (415) 750-5111.

Specialist with taxonomy code 174400000X.