Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
John D Stewart, DDS
Dentist in Porterville, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1649225319
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name John D Stewart
Credential DDS
Sex Male
Practice address 26501 Avenue 140, Porterville, CA, 93258
Phone (559) 782-2222
Enumeration date May 23, 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
Is NPI 1649225319 active?
Yes, as of the latest NPPES snapshot, NPI 1649225319 is active (record last updated 2007-07-08).
How do I verify John Stewart's NPI record?
Cross-check NPI 1649225319 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → Krishna Tholasiram Internal Medicine Physician · Porterville, CA NPI 1902859853 Mark Matthews Family Medicine Physician · Porterville, CA NPI 1760436455 Sean Fleming Family Medicine Physician · Porterville, CA NPI 1679527931 Louis Ling Obstetrics & Gynecology Physician · Porterville, CA NPI 1508810862 Theresa Jones Family Nurse Practitioner · Porterville, CA NPI 1205880580 Gilbert Gonzales Family Medicine Physician · Porterville, CA NPI 1124072277
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.