MR. LARRY TU ASW
NPI 1861876948
Social Worker in San Francisco, CA

NPI Status: Active since July 17, 2015

Contact Information

1263 MISSION ST
SAN FRANCISCO, CA
ZIP 94103
Phone: (415) 597-8000

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  • Individual
  • Male
  • Social Worker

About LARRY TU

This page provides the complete NPI Profile along with additional information for Larry Tu, a provider established in San Francisco, California with a medical specialization in Social Worker. The healthcare provider is registered in the NPI registry with number 1861876948 assigned on July 2015. The practitioner's primary taxonomy code is 104100000X with license number ASW77959 (CA). The provider is registered as an individual and his NPI record was last updated 2 years ago.

NPI
1861876948
Provider Name
MR. LARRY TU ASW
Gender
Male
Entity Type
Individual
Location Address
1263 MISSION ST SAN FRANCISCO, CA 94103
Location Phone
(415) 597-8000
Mailing Address
982 MISSION ST SAN FRANCISCO, CA 94103
Is Sole Proprietor?
Yes
Enumeration Date
07-17-2015
Last Update Date
12-18-2023
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A social worker like Larry Tu helps patients solve and cope with problems in their everyday lives, diagnoses and treats mental, behavioral, and emotional problems. Social workers help in wide range of situations, such as adopting a child, illness, divorce, or unemployment.

Location Map

Secondary Locations

  • 1038 Post St
    San Francisco, CA 94109
    (415) 775-2636

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

Social Worker

Taxonomy Code
104100000X
Type
Behavioral Health & Social Service Providers
License No.
ASW77959
License State
CA
Taxonomy Description
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1101Y00000XBehavioral Health & Social Service Providers

Counselor

ASW77959 (CA)
2104100000XBehavioral Health & Social Service Providers

Social Worker

 
3390200000XStudent, Health Care

Student in an Organized Health Care Education/Training Program

 

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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 1861876948, we treat the final digit (8) 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 72. The final step is to find the difference between that total and the next multiple of ten (80 - 72 = 8).

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
6
Doubled → 12 → 1 + 2
Pos 4
1
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
7
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
9
Unchanged
Pos 9
4
Doubled → 8
Check
8
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 6 → 12 → 3 8 → 16 → 7 6 → 12 → 3 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 2 + 1 + 1 + 6 + 7 + 1 + 2 + 9 + 8 + 24 = 72

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

The next multiple of ten after 72 is 80. The difference is the calculated check digit.

80 - 72 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1861876948.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Social Worker
1263 MISSION ST
SAN FRANCISCO, CA 94103
Social Worker
1263 MISSION ST
SAN FRANCISCO, CA 94103
Social Worker
1263 MISSION ST
SAN FRANCISCO, CA 94103
Social Worker
1263 MISSION ST
SAN FRANCISCO, CA 94103
Social Worker
1263 MISSION ST
SAN FRANCISCO, CA 94103
Community Health Worker
1263 MISSION ST
SAN FRANCISCO, CA 94103
Community Health Worker
1263 MISSION ST
SAN FRANCISCO, CA 94103
Social Worker
1263 MISSION ST
SAN FRANCISCO, CA 94103
Social Worker (Clinical)
1263 MISSION ST
SAN FRANCISCO, CA 94103
Specialist
1263 MISSION ST
SAN FRANCISCO, CA 94103
Marriage & Family Therapist
1263 MISSION ST
SAN FRANCISCO, CA 94103
Case Management
1263 MISSION ST
SAN FRANCISCO, CA 94103
Social Worker (Clinical)
1263 MISSION ST
SAN FRANCISCO, CA 94103
Social Worker (Clinical)
1263 MISSION ST
SAN FRANCISCO, CA 94103
Community Health Worker
1263 MISSION ST
SAN FRANCISCO, CA 94103
Counselor (Addiction (Substance Use Disorder))
1263 MISSION ST
SAN FRANCISCO, CA 94103
Psychiatry & Neurology (Psychiatry)
1263 MISSION ST
SAN FRANCISCO, CA 94103
Psychiatry & Neurology (Psychiatry)
1263 MISSION ST
SAN FRANCISCO, CA 94103
Community Health Worker
1263 MISSION ST
SAN FRANCISCO, CA 94103
Social Worker
1263 MISSION ST
SAN FRANCISCO, CA 94103

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1861876948, enumerated as an "individual" on July 17, 2015.

The provider is located at 1263 MISSION ST SAN FRANCISCO, CA 94103 and the phone number is (415) 597-8000.

Social Worker with taxonomy code 104100000X.