Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Hannah Mary Grassi
Physician Assistant in Bourne, MA · enumerated 2024.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1043054711
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Hannah Mary Grassi
Sex Female
Practice address 2 Technology Park Dr, Bourne, MA, 02532
Phone (774) 608-3800
Enumeration date Jun 19, 2024
Last updated in NPPES Jun 19, 2024
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
Where does Hannah Grassi practice?
The practice location on file with NPPES is in Bourne, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Hannah Grassi?
The National Provider Identifier (NPI) for Hannah Grassi is 1043054711, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Michael Smith Family Medicine Physician · Bourne, MA NPI 1306830484 Meredith Gilson Family Medicine Physician · Bourne, MA NPI 1528058781 Caitlin Mann Family Medicine Physician · Bourne, MA NPI 1558478164 Megan Collyer Family Medicine Physician · Bourne, MA NPI 1215097464 Inmed Diagnostic Services of Massachusetts LLC Mammography Clinic/Center · Bourne, MA NPI 1700903432 Victoria M. Camaya, MD PC Diagnostic Radiology Physician · Bourne, MA NPI 1396911046 Michael Flynn Family Medicine Physician · Bourne, MA NPI 1922503945
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-06-19.