IndividualActive
Nicholas Marek-Sinclair, ASW
NPI 1932621208 · Social Worker · San Francisco, CA
Nicholas Marek-Sinclair, ASW is a Social Worker provider in San Francisco, CA (NPI 1932621208).
Provider details
- NPI number
- 1932621208
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Credential
- ASW
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(72/100 index)
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
83% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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
890 Hayes St
San Francisco, CA 94117-2615
Phone: (415) 762-3700
Street-level locationGet directions
Mailing address
1563 Mission St
San Francisco, CA 94103-2543
Additional practice locations (2)
- 3800 Coolidge AveOakland, CA 94602-3311Phone: (510) 482-2244
- 1801 Vicente StSan Francisco, CA 94116-2923Phone: (415) 681-3211
Registry dates
- Enumerated
- 2017-07-08
- Last updated
- 2024-01-25
- Certified
- 2024-01-25
Frequently asked questions
- What is Nicholas Marek-Sinclair's NPI number?
- Nicholas Marek-Sinclair's National Provider Identifier (NPI) is 1932621208, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nicholas Marek-Sinclair's specialty?
- Nicholas Marek-Sinclair is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Nicholas Marek-Sinclair located?
- Nicholas Marek-Sinclair's practice location on file with NPPES is 890 Hayes St, San Francisco, CA 94117-2615.
- What is Nicholas Marek-Sinclair's phone number?
- The practice phone number listed in the NPPES registry for Nicholas Marek-Sinclair is (415) 762-3700.
- Is Nicholas Marek-Sinclair's NPI active?
- Yes — Nicholas Marek-Sinclair's NPI (1932621208) is active in the NPPES registry as of the last update on 2024-01-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.