Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Stephen Wayne Nelson, DDS
Dentist in San Mateo, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1871501718
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Registry record
Entity type Individual (Type 1)
Name Stephen Wayne Nelson
Credential DDS
Sex Male
Practice address 235 N San Mateo Dr, #200, San Mateo, CA, 94401
Phone (650) 348-7464
Fax (650) 348-8531
Enumeration date Aug 4, 2006
Last updated in NPPES Jul 8, 2007
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
How do I verify Stephen Nelson's NPI record?
Cross-check NPI 1871501718 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1871501718 active?
Yes, as of the latest NPPES snapshot, NPI 1871501718 is active (record last updated 2007-07-08).
Other providers at this practice address
Browse all → Brenda Lewis Periodontics · San Mateo, CA NPI 1447350277 Bryan Pope Periodontics · San Mateo, CA NPI 1730289562 Jessy Tseng Endodontics · San Mateo, CA NPI 1083703557 Victoria Moore Endodontics · San Mateo, CA NPI 1124117825 Frederick Cho Endodontics · San Mateo, CA NPI 1649369265 Richard Fagin Oral & Maxillofacial Surgery (D.M.D.) · San Mateo, CA NPI 1538234695 David Moore Endodontics · San Mateo, CA NPI 1225204407
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.