Katherine S. Ko, DDS
Pediatric Dentistry · Corona, CA
Katherine S. Ko, DDS is a pediatric dentistry with a practice address in Corona, California, and NPI 1134357387, issued on Jun 26, 2009. Check the license (California 55454, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Katherine S. Ko
- Credential
- DDS
- Primary taxonomy
- Pediatric Dentistry 1223P0221X
- License number
- 55454 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4398 Floyd St, Corona, CA 92883
- Phone
- (310) 999-3167
- Enumerated
- Jun 26, 2009
- Record last updated
- Jun 26, 2009 (not updated in 17 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest pediatric dentistry records → All 1,339 in California → Look up another NPI →
Verify Katherine S. Ko in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 55454Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Katherine S. Ko among 1,339 pediatric dentistry records in California
Katherine S. Ko, DDS is one of 1,339 pediatric dentistry records with a practice address in California. 24% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2009, is newer than 49% of them.
- NPI issued2009 · 49% of these records are older, 46% newer
- In a Medicare fileNo · 24% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2009 · 69% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223P0221X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Dentistry providers in California
There are 1,339 pediatric dentistry records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,339 in California → Every provider in Corona → Pediatric Dentistry nationwide →
The 8 pediatric dentistry records with the nearest ZIP codes
- Angelo Cacciatore, DMDCorona, CA 928821043983174
- Richard Richardson, M.S., D.D.S.Corona, CA 928821407944937
- Harsheen Sidhu, DDSCorona, CA 928821063874709
- Walter Snow, DMDCorona, CA 928821295803245
- Jaclyn Bae, DDSYorba Linda, CA 928861740559780
- Douglas McGavin, D.D.S.Yorba Linda, CA 928861962747105
- Brian Saunders, DDSYorba Linda, CA 928861770703936
- Marvin Chen, DDSCorona, CA 928791417699364
Common questions
What is Katherine S. Ko, DDS's NPI number?
Katherine S. Ko, DDS's National Provider Identifier (NPI) is 1134357387, issued on Jun 26, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Katherine S. Ko, DDS located?
The NPPES record lists a practice address at 4398 Floyd St, Corona, CA, 92883. Phone: (310) 999-3167. Providers update this record themselves, so call before visiting.
How can I verify Katherine S. Ko, DDS's license?
NPPES lists California license number 55454, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.