Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Joseph M Gruberg, DMD
Dentist in Springfield, VA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1326129305
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Registry record
Entity type Individual (Type 1)
Name Dr. Joseph M Gruberg
Credential DMD
Sex Male
Practice address 7485 Huntsman Blvd, Huntsman Boulevard, Springfield, VA, 22153
Phone (703) 569-4422
Fax (703) 569-0882
Enumeration date Oct 18, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees.
About the DMD 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
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.
What specialty is Joseph Gruberg?
Joseph Gruberg is registered in NPPES with the primary taxonomy of Dentist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.