Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
David Harold Cox, DDS
Dentist in South Lyon, MI · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1740409549
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Registry record
Entity type Individual (Type 1)
Name David Harold Cox
Credential DDS
Sex Male
Practice address 204 Whipple St, South Lyon, MI, 48178
Phone (810) 231-4800
Fax (248) 437-2766
Enumeration date Apr 24, 2007
Last updated in NPPES Mar 8, 2023
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 David Cox practice?
The practice location on file with NPPES is in South Lyon, MI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for David Cox?
The National Provider Identifier (NPI) for David Cox is 1740409549, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-08.