Tsz Kwan Lan
NPI 1861915530 · Social Worker · San Francisco, CA
Tsz Kwan Lan is a Social Worker provider in San Francisco, CA (NPI 1861915530).
Provider details
- NPI number
- 1861915530
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 90689 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-07-24
- Last updated
- 2023-03-03
- Certified
- 2023-03-03
Frequently asked questions
- What is Tsz Kwan Lan's NPI number?
- Tsz Kwan Lan's National Provider Identifier (NPI) is 1861915530, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tsz Kwan Lan's specialty?
- Tsz Kwan Lan is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Tsz Kwan Lan located?
- Tsz Kwan Lan's practice location on file with NPPES is 1235 Mission St, San Francisco, CA 94103-2705.
- What is Tsz Kwan Lan's phone number?
- The practice phone number listed in the NPPES registry for Tsz Kwan Lan is (415) 279-5732.
- Is Tsz Kwan Lan's NPI active?
- Yes — Tsz Kwan Lan's NPI (1861915530) is active in the NPPES registry as of the last update on 2023-03-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.