Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Alyssa Costello
Behavior Analyst in Massapequa, NY · enumerated 2022.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1386379584
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Registry record
Entity type Individual (Type 1)
Name Alyssa Costello
Sex Female
Practice address 4250 Sunrise Hwy, Massapequa, NY, 11758
Phone (516) 654-9090
Enumeration date Jul 21, 2022
Last updated in NPPES Jul 21, 2022
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 Alyssa Costello?
Alyssa Costello is registered in NPPES with the primary taxonomy of Behavior Analyst. 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 → Steven Baron Psychologist · Massapequa, NY NPI 1669562989 Susan Gardner Clinical Social Worker · Massapequa, NY NPI 1508079443 Julie Manis Psychiatric Np Pllc Mental Health Clinic/Center (Including Community Mental Health Center) · Massapequa, NY NPI 1962873463 Denise Wright Licensed Behavior Analyst Pllc Behavior Analyst · Massapequa, NY NPI 1114416021 Rebecca Safranek Behavior Analyst · Massapequa, NY NPI 1003575101 Sahida Singh-Rhoden Behavior Analyst · Massapequa, NY NPI 1912631003
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-21.