Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Darcy Cahill, LMSW
Social Worker in Hicksville, NY · enumerated 2019.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1679110878
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Registry record
Entity type Individual (Type 1)
Name Darcy Cahill
Credential LMSW
Sex Female
Practice address 950 S Oyster Bay Rd, Hicksville, NY, 11801
Phone (516) 704-3269
Enumeration date Dec 6, 2019
Last updated in NPPES Nov 27, 2023
Taxonomy & licenses
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
What specialty is Darcy Cahill?
Darcy Cahill is registered in NPPES with the primary taxonomy of Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Other providers at this practice address
Browse all → Central Nassau Guidance & Counseling Services, Inc. Community/Behavioral Health Agency · Hicksville, NY NPI 1114928462 Asma Ejaz Psychiatry Physician · Hicksville, NY NPI 1841259892 Lydia Mechanick Clinical Social Worker · Hicksville, NY NPI 1396783312 Leeann Diedrick Clinical Social Worker · Hicksville, NY NPI 1063451599 Martin Merget Clinical Social Worker · Hicksville, NY NPI 1912948043 Kathleen Dawson Clinical Social Worker · Hicksville, NY NPI 1518909498 Cindy Floyd Clinical Social Worker · Hicksville, NY NPI 1114957487 Jennifer Jonas Addiction (Substance Use Disorder) Counselor · Hicksville, NY NPI 1205868916
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-11-27.