William Morris, CASAC T 39091
NPI 1851277917 · Addiction (Substance Use Disorder) Counselor · Islip, NY
William Morris, CASAC T 39091 is a Addiction (Substance Use Disorder) Counselor provider in Islip, NY (NPI 1851277917).
Provider details
- NPI number
- 1851277917
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- CASAC T 39091
- Sex
- Male
- Sole proprietor
- Yes
- License
- 39091 (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
Under 1 yr in 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
- 2025-08-14
- Last updated
- 2025-08-14
- Certified
- 2025-08-14
Frequently asked questions
- What is William Morris's NPI number?
- William Morris's National Provider Identifier (NPI) is 1851277917, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Morris's specialty?
- William Morris is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is William Morris located?
- William Morris's practice location on file with NPPES is 93 Grand Blvd, Islip, NY 11751-1308.
- What is William Morris's phone number?
- The practice phone number listed in the NPPES registry for William Morris is (631) 827-3150.
- Is William Morris's NPI active?
- Yes — William Morris's NPI (1851277917) is active in the NPPES registry as of the last update on 2025-08-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.