TSZ KWAN LAN
NPI 1861915530
Social Worker in San Francisco, CA

NPI Status: Active since July 24, 2017

Contact Information

1235 MISSION ST
SAN FRANCISCO, CA
ZIP 94103
Phone: (415) 279-5732

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  • Individual
  • Female
  • Social Worker

About TSZ KWAN LAN

This page provides the complete NPI Profile along with additional information for Tsz Kwan Lan, 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 1861915530 assigned on July 2017. The practitioner's primary taxonomy code is 104100000X with license number 113180 (CA). The provider is registered as an individual and her NPI record was last updated 3 years ago.

NPI
1861915530
Provider Name
TSZ KWAN LAN
Gender
Female
Entity Type
Individual
Location Address
1235 MISSION ST SAN FRANCISCO, CA 94103
Location Phone
(415) 279-5732
Mailing Address
1235 MISSION ST SAN FRANCISCO, CA 94103
Mailing Phone
(415) 279-5732
Is Sole Proprietor?
Yes
Enumeration Date
07-24-2017
Last Update Date
03-03-2023
Code Navigator

A social worker like Tsz Kwan Lan 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.

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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

Social Worker

Taxonomy Code
104100000X
Type
Behavioral Health & Social Service Providers
License No.
113180
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

90689 (CA)
2390200000XStudent, 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 1861915530, 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
8
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
1
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
1
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
5
Unchanged
Pos 9
3
Doubled → 6
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 6 → 12 → 3 9 → 18 → 9 5 → 10 → 1 3 → 6

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 + 8 + 1 + 1 + 0 + 5 + 6 + 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 1861915530.

Other Providers at the Same Location


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

Counselor
1235 MISSION ST
SAN FRANCISCO, CA 94103
Counselor
1235 MISSION ST, SUITE 200
SAN FRANCISCO, CA 94103
Psychologist (Clinical)
1235 MISSION ST
SAN FRANCISCO, CA 94103
Preventive Medicine (Public Health & General Preventive Medicine)
1235 MISSION ST, 1ST FLOOR
SAN FRANCISCO, CA 94103
Counselor (Mental Health)
1235 MISSION ST, PAES COUNSELING AND PRE-VOCATIONAL SERVICES
SAN FRANCISCO, CA 94103
Counselor
1235 MISSION ST
SAN FRANCISCO, CA 94103
Marriage & Family Therapist
1235 MISSION ST
SAN FRANCISCO, CA 94103
Rehabilitation Hospital
1235 MISSION ST
SAN FRANCISCO, CA 94103
Social Worker (Clinical)
1235 MISSION ST
SAN FRANCISCO, CA 94103
Counselor
1235 MISSION ST
SAN FRANCISCO, CA 94103
Psychologist
1235 MISSION ST
SAN FRANCISCO, CA 94103
Counselor
1235 MISSION ST, SECOND FLOOR
SAN FRANCISCO, CA 94103
Psychologist
1235 MISSION ST
SAN FRANCISCO, CA 94103
Community Health Worker
1235 MISSION ST
SAN FRANCISCO, CA 94103
Psychologist (Clinical)
1235 MISSION ST
SAN FRANCISCO, CA 94103
Marriage & Family Therapist
1235 MISSION ST
SAN FRANCISCO, CA 94103
Community Health Worker
1235 MISSION ST
SAN FRANCISCO, CA 94103
Contractor
1235 MISSION ST, 2ND FLOOR
SAN FRANCISCO, CA 94103
Community Health Worker
1235 MISSION ST
SAN FRANCISCO, CA 94103
Marriage & Family Therapist
1235 MISSION ST
SAN FRANCISCO, CA 94103

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1861915530, enumerated as an "individual" on July 24, 2017.

The provider is located at 1235 MISSION ST SAN FRANCISCO, CA 94103 and the phone number is (415) 279-5732.

Social Worker with taxonomy code 104100000X.