Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Gregory Robert Bacos
Counselor in Wilmington, MA · enumerated 2013.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1285078956
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Registry record
Entity type Individual (Type 1)
Name Gregory Robert Bacos
Sex Male
Practice address 260 Fordham Rd, Wilmington, MA, 01887
Phone (978) 315-1011
Enumeration date Apr 24, 2013
Last updated in NPPES Oct 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 Gregory Bacos?
Gregory Bacos 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
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-10-27.