Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
John Harrison, D.M.D.
Pediatric Dentistry in Concord, CA · enumerated 2013.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1073953840
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Registry record
Entity type Individual (Type 1)
Name John Harrison
Credential D.M.D.
Sex Male
Practice address 2879 Willow Pass Rd, Concord, CA, 94519
Phone (925) 685-0519
Enumeration date Jun 26, 2013
Last updated in NPPES Jun 4, 2025
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
What is the NPI number for John Harrison?
The National Provider Identifier (NPI) for John Harrison is 1073953840, a Type 1 (individual) record in the CMS NPPES registry.
Where does John Harrison practice?
The practice location on file with NPPES is in Concord, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Donald C. Schmitt, DDS & Rinku S. Saini, DDS Inc. Pediatric Dentistry · Concord, CA NPI 1841419728 Randall Wiley Pediatric Dentistry · Concord, CA NPI 1548474711 Donald Schmitt Pediatric Dentistry · Concord, CA NPI 1629282801 Harrison Pediatric Dentistry Dental Clinic/Center · Concord, CA NPI 1013808260
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-06-04.