William Gallagher, CASAC-T, CRPA
NPI 1720836984 · Addiction (Substance Use Disorder) Counselor · Deer Park, NY
William Gallagher, CASAC-T, CRPA is a Addiction (Substance Use Disorder) Counselor provider in Deer Park, NY (NPI 1720836984).
Provider details
- NPI number
- 1720836984
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- CASAC-T, CRPA
- Sex
- Male
- Sole proprietor
- No
- License
- CRPA-5510 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 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
- 2024-05-10
- Last updated
- 2024-05-10
- Certified
- 2024-05-10
Frequently asked questions
- What is William Gallagher's NPI number?
- William Gallagher's National Provider Identifier (NPI) is 1720836984, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Gallagher's specialty?
- William Gallagher is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is William Gallagher located?
- William Gallagher's practice location on file with NPPES is 770 Grand Blvd Ste 17, Deer Park, NY 11729-5725.
- What is William Gallagher's phone number?
- The practice phone number listed in the NPPES registry for William Gallagher is (631) 919-7294.
- Is William Gallagher's NPI active?
- Yes — William Gallagher's NPI (1720836984) is active in the NPPES registry as of the last update on 2024-05-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.