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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Timothy P Gross, D.M.D.

General Practice Dentistry in Hilton Head Island, SC · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1659443117

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Registry record

Entity type Individual (Type 1)
Name Dr. Timothy P Gross
Credential D.M.D.
Sex Male
Practice address Hilton Head Island, SC, 29926
Phone (843) 342-7700
Fax (843) 342-7703
Enumeration date Nov 13, 2006
Last updated in NPPES Mar 3, 2010

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License DS-028129-L (PA) Secondary
1223G0001X General Practice Dentistry Dental Providers · License DGD4552 (SC) Primary
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.

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Frequently asked questions

Where does Timothy Gross practice?
The practice location on file with NPPES is in Hilton Head Island, SC. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Timothy Gross?
The National Provider Identifier (NPI) for Timothy Gross is 1659443117, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-03-03.