WILLIAM JAMES MORRIS CASAC T 39091
NPI 1851277917
Counselor - Addiction (Substance Use Disorder) in Islip, NY

Q: What is William Morris's NPI number?

The NPI number for William Morris is 1851277917. It was assigned to this individual provider in the NPPES registry on August 14, 2025.

Q: What is William Morris's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

Q: When was this NPI record last updated?

The NPPES record for William Morris was last updated on August 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since August 14, 2025

93 GRAND BLVD, ISLIP, NY 11751(631) 827-3150 Get Directions Write a Review

NPPES record last updated: August 14, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About William James Morris Casac T 39091 NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM JAMES MORRIS CASAC T 39091 (NPI 1851277917) is an individual addiction (substance use disorder) provider in Islip, New York, licensed in New York (39091) and active in the NPI registry since August 2025.

NPPES Registry Identity

NPI1851277917

Entity TypeIndividualMale

Primary Taxonomy101YA0400X

Provider Legal NameWILLIAM JAMES MORRISCredential: CASAC T 39091

Location Address93 GRAND BLVDIslip, NY 11751-1308

Mailing Address93 Grand BlvdIslip, NY 11751-1308 · (631) 827-3150

Phone(631) 827-3150

Sole ProprietorYes

Enumeration DateAugust 14, 2025

NPPES CertifiedAugust 14, 2025

✔ NPI 1851277917 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers

Taxonomy Code101YA0400X

License✔ Licensed in NY · 39091

93 GRAND BLVD, Islip, NY 11751

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Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Morris's NPI number?

The NPI number for William Morris is 1851277917. It was assigned to this individual provider in the NPPES registry on August 14, 2025.

Where is William Morris located?

William Morris practices at 93 Grand Blvd, Islip, NY 11751. The listed phone number is (631) 827-3150.

What is William Morris's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

When was this NPI record last updated?

The NPPES record for William Morris was last updated on August 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.