Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Matthew Mi Bullis, LMSW
Social Worker in East Islip, NY · enumerated 2019.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1932759230
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Registry record
Entity type Individual (Type 1)
Name Matthew Mi Bullis
Credential LMSW
Sex Male
Practice address 18 Wyandotte Ln, East Islip, NY, 11730
Phone (631) 918-3186
Enumeration date Sep 18, 2019
Last updated in NPPES Sep 18, 2019
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 Matthew Bullis?
Matthew Bullis 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.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-09-18.