Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Adam Jason Grossman, DDS
Dentist in Boston, MA · enumerated 2008.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1821241027
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Registry record
Entity type Individual (Type 1)
Name Dr. Adam Jason Grossman
Credential DDS
Sex Male
Practice address 1 Kneeland St, Suite 417, Boston, MA, 02111
Phone (617) 636-6796
Enumeration date Oct 31, 2008
Last updated in NPPES Oct 31, 2008
Taxonomy & licenses
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees.
About the DDS credential
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 Adam Grossman practice?
The practice location on file with NPPES is in Boston, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Adam Grossman?
The National Provider Identifier (NPI) for Adam Grossman is 1821241027, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Edward Fidrocki Dentist · Boston, MA NPI 1952385742 Noshir Mehta General Practice Dentistry · Boston, MA NPI 1740251289 David Prindiville Oral and Maxillofacial Surgery (Dentist) · Boston, MA NPI 1588625727 Roger Galburt Prosthodontics · Boston, MA NPI 1154351047 Athena Papas General Practice Dentistry · Boston, MA NPI 1164431573 William Gilmore Oral and Maxillofacial Surgery (Dentist) · Boston, MA NPI 1952415655 Mary Karish-Dodge General Practice Dentistry · Boston, MA NPI 1194829606 Kalpakam Shastri Oral and Maxillofacial Surgery (Dentist) · Boston, MA NPI 1225106446
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-10-31.