Arthur Larsen, LMSW
NPI 1154913101 · Clinical Social Worker · Staten Island, NY
Arthur Larsen, LMSW is a Clinical Social Worker provider in Staten Island, NY (NPI 1154913101).
Provider details
- NPI number
- 1154913101
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LMSW
- Sex
- Male
- Sole proprietor
- Yes
- License
- 128961401 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 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
- 2021-02-10
- Last updated
- 2021-02-10
- Certified
- 2021-02-10
Frequently asked questions
- What is Arthur Larsen's NPI number?
- Arthur Larsen's National Provider Identifier (NPI) is 1154913101, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Arthur Larsen's specialty?
- Arthur Larsen is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Arthur Larsen located?
- Arthur Larsen's practice location on file with NPPES is 34 Fiedler Ave, Staten Island, NY 10301-3127.
- What is Arthur Larsen's phone number?
- The practice phone number listed in the NPPES registry for Arthur Larsen is (718) 578-9639.
- Is Arthur Larsen's NPI active?
- Yes — Arthur Larsen's NPI (1154913101) is active in the NPPES registry as of the last update on 2021-02-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.