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WILLIAM GUYLER NIVER CSW
NPI 1821318254
Counselor - Addiction (Substance Use Disorder) in Cortland, NY

Active since June 08, 2010
17 MAIN ST, CORTLAND, NY 13045(607) 756-4167(607) 753-0608 Get Directions Write a Review

NPPES record last updated: June 8, 2010. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About William Guyler Niver Csw NPPES

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

WILLIAM GUYLER NIVER CSW (NPI 1821318254) is an individual addiction (substance use disorder) provider in Cortland, New York, licensed in New York (8695) and active in the NPI registry since June 2010.

NPPES Registry Identity

NPI1821318254
Entity TypeIndividualMale
Primary Taxonomy101YA0400X
Provider Legal NameWILLIAM GUYLER NIVERCredential: CSW
Location Address17 MAIN STCortland, NY 13045-6606
Mailing Address17 Main StCortland, NY 13045-6606 · (607) 756-4167 · Fax (607) 753-0608
Phone(607) 756-4167
Fax(607) 753-0608
Sole ProprietorYes
Enumeration DateJune 8, 2010
✔ NPI 1821318254 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 · 8695
17 MAIN ST, Cortland, NY 13045
Open in Google Maps ↗

Other Identifiers 1

Medicaid02525840NY

Other Providers at the Same Location NPPES 12

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ASI OF CORTLAND, LLC
Community/Behavioral Health
17 MAIN ST
CORTLAND, NY 13045
Cortland County (607) 756-4167
ASI OF CORTLAND, LLC
Community/Behavioral Health
17 MAIN ST, SUITE 411
CORTLAND, NY 13045
Cortland County (607) 756-4167
MRS. JENNIFER LEE WHELAN LMSW
Social Worker (Clinical)
17 MAIN ST
CORTLAND, NY 13045
Cortland County (607) 753-3798
MR. JOSEPH FRANK PACE LCSW
Social Worker (Clinical)
17 MAIN ST, LL 21
CORTLAND, NY 13045
Cortland County (607) 758-5423
MISS LISA GALE SHOLAR LMSW, CSSW
Social Worker
17 MAIN ST, SUITE 302
CORTLAND, NY 13045
Cortland County (607) 753-3798
MS. MELISSA BRAMLEY LCSW-R
Social Worker (Clinical)
17 MAIN ST, SUITE 202
CORTLAND, NY 13045
Cortland County (607) 662-0209
LISA MARIE LOOMIS LCSW
Social Worker (Clinical)
17 MAIN ST, SUITE 202
CORTLAND, NY 13045
Cortland County (607) 662-0209
LUCINDA HORN LMHC
Counselor (Mental Health)
17 MAIN ST, 414
CORTLAND, NY 13045
Cortland County (315) 729-1753

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 Niver's NPI number?

The NPI number for William Niver is 1821318254. It was assigned to this individual provider in the NPPES registry on June 8, 2010.

Where is William Niver located?

William Niver practices at 17 Main St, Cortland, NY 13045. The listed phone number is (607) 756-4167.

What is William Niver'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 Niver was last updated on June 8, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years 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.