Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Sheila Anne Milligan
Social Worker in Middle Island, NY · enumerated 2025.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1164217402
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Registry record
Entity type Individual (Type 1)
Name Sheila Anne Milligan
Sex Female
Practice address 3 Maple Rd, Middle Island, NY, 11953
Phone (631) 220-1068
Enumeration date Apr 9, 2025
Last updated in NPPES Apr 9, 2025
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License 123085-01 (NY) Primary
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 is the NPI number for Sheila Milligan?
The National Provider Identifier (NPI) for Sheila Milligan is 1164217402, a Type 1 (individual) record in the CMS NPPES registry.
Where does Sheila Milligan practice?
The practice location on file with NPPES is in Middle Island, NY. Providers can have multiple locations; NPPES lists the primary practice address.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-09.