Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Derrick Stanley Mccluskey
Counselor in Greenfield, MA · enumerated 2020.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1578193686
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Registry record
Entity type Individual (Type 1)
Name Derrick Stanley Mccluskey
Sex Male
Practice address 1 Arch Pl Ste 1, Greenfield, MA, 01301
Phone (413) 774-1000
Enumeration date Jan 17, 2020
Last updated in NPPES Jan 22, 2020
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 Derrick Mccluskey?
Derrick Mccluskey is registered in NPPES with the primary taxonomy of Counselor. 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 → Rachel Snow Counselor · Greenfield, MA NPI 1346617735 Kelly Donahoe Counselor · Greenfield, MA NPI 1689136723 Rafael Hernandez Case Manager/Care Coordinator · Greenfield, MA NPI 1548881980 Jonathan Todd Counselor · Greenfield, MA NPI 1417569658 Elizabeth Bouyea Art Therapist · Greenfield, MA NPI 1477157436
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-01-22.