Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Douglas S Szeto, D.M.D.
Endodontics in Lake Forest, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1083789309
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Registry record
Entity type Individual (Type 1)
Name Douglas S Szeto
Credential D.M.D.
Sex Male
Practice address 22982 El Toro Road, Suite 100, Lake Forest, CA, 92630
Phone (949) 305-0202
Fax (949) 305-0203
Enumeration date Nov 21, 2006
Last updated in NPPES Aug 16, 2013
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
Where does Douglas Szeto practice?
The practice location on file with NPPES is in Lake Forest, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Douglas Szeto?
The National Provider Identifier (NPI) for Douglas Szeto is 1083789309, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-08-16.