John Dillon, CSW
NPI 1023139300 · Clinical Social Worker · Garden City, NY
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Dillon, CSW is a Clinical Social Worker provider in Garden City, NY (NPI 1023139300).
Provider details
- NPI number
- 1023139300
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- CSW
- Sex
- Male
- Sole proprietor
- Yes
- License
- R053490-1 (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
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
Mailing address
Registry dates
- Enumerated
- 2007-04-03
- Last updated
- 2015-04-01
Frequently asked questions
- What is John Dillon's NPI number?
- John Dillon's National Provider Identifier (NPI) is 1023139300, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Dillon's specialty?
- John Dillon is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is John Dillon located?
- John Dillon's practice location on file with NPPES is 385 Oak Street, Garden City, NY 11530.
- What is John Dillon's phone number?
- The practice phone number listed in the NPPES registry for John Dillon is (516) 705-3400.
- Does John Dillon accept Medicare?
- John Dillon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Dillon's NPI active?
- Yes — John Dillon's NPI (1023139300) is active in the NPPES registry as of the last update on 2015-04-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.