IndividualActive
Nancy Olsen, LCSW
NPI 1184718926 · Clinical Social Worker · Northport, NY
Nancy Olsen, LCSW is a Clinical Social Worker provider in Northport, NY (NPI 1184718926).
Provider details
- NPI number
- 1184718926
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- 048884-1 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
79 Middleville Rd
116a
Northport, NY 11768-2200
Phone: (631) 261-4400
Fax: (631) 754-7981
Approximate (ZIP-level) locationGet directions
Mailing address
79 Middleville Rd
Northport, NY 11768-2200
Registry dates
- Enumerated
- 2006-10-03
- Last updated
- 2007-07-12
Frequently asked questions
- What is Nancy Olsen's NPI number?
- Nancy Olsen's National Provider Identifier (NPI) is 1184718926, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nancy Olsen's specialty?
- Nancy Olsen is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Nancy Olsen located?
- Nancy Olsen's practice location on file with NPPES is 79 Middleville Rd, Northport, NY 11768-2200.
- What is Nancy Olsen's phone number?
- The practice phone number listed in the NPPES registry for Nancy Olsen is (631) 261-4400.
- Is Nancy Olsen's NPI active?
- Yes — Nancy Olsen's NPI (1184718926) is active in the NPPES registry as of the last update on 2007-07-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.