Christopher Callahan, LCSW, CASAC
NPI 1316420714 · Clinical Social Worker · Port Jefferson, NY
Christopher Callahan, LCSW, CASAC is a Clinical Social Worker provider in Port Jefferson, NY (NPI 1316420714).
Provider details
- NPI number
- 1316420714
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW, CASAC
- Sex
- Male
- Sole proprietor
- Yes
- License
- 096108 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
7 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
- 2018-09-11
- Last updated
- 2023-09-14
- Certified
- 2023-09-14
Frequently asked questions
- What is Christopher Callahan's NPI number?
- Christopher Callahan's National Provider Identifier (NPI) is 1316420714, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Callahan's specialty?
- Christopher Callahan is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Christopher Callahan located?
- Christopher Callahan's practice location on file with NPPES is 1000 Main St Ste 3, Port Jefferson, NY 11777-2250.
- What is Christopher Callahan's phone number?
- The practice phone number listed in the NPPES registry for Christopher Callahan is (631) 743-5659.
- Is Christopher Callahan's NPI active?
- Yes — Christopher Callahan's NPI (1316420714) is active in the NPPES registry as of the last update on 2023-09-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.