Steve O. Kwon, M.D.
Pediatrics Physician · Yorba Linda, CA
Steve O. Kwon, M.D. is a pediatrics physician with a practice address in Yorba Linda, California, and NPI 1841399847, issued on Sep 22, 2006. Check the license (California A85597, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Steve O. Kwon
- Credential
- M.D.
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- A85597 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4300 Rose Dr, Yorba Linda, CA 92886
- Phone
- (714) 528-4211
- Enumerated
- Sep 22, 2006
- Record last updated
- Nov 5, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (714) 579-6868
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 9,272 in California → Look up another NPI →
Also registered at 4300 Rose Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nazlee ArainPediatric Registered Nurse1528739927
- Anthony Bae, M.D.Internal Medicine Physician1194711945
- Marienelle Banez, M.D.Pediatrics Physician1689695082
- Abram Beshay, MDDermatology Physician1356874218
- Paul Bracho, LCSW MFTClinical Social Worker1326185018
- Ai-Vy Bui, DOPediatrics Physician1821557984
Verify Steve O. Kwon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A85597Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $69.82
3 payments; by number, the most common kind was food and beverage; the largest payer was Corium, LLC. The 21,580 providers of this specialty with any payment received $842.05 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Steve O. Kwon among 9,272 pediatrics physician records in California
Steve O. Kwon, M.D. is one of 9,272 pediatrics physician records with a practice address in California. 31% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 56% newer
- In a Medicare fileYes · 31% of these records are
- In the CMS Doctors and Clinicians fileNo · 8% of these records are
- Record last updated2021 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
17 pediatrics physician records list a practice address in Yorba Linda
They are 17 of the 748 NPPES records with a practice address in Yorba Linda, and 9,272 pediatrics physician records in California.
All 9,272 in California → Every provider in Yorba Linda → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Azza Ayad, MDYorba Linda, CA 928861245278928
- Marienelle Banez, M.D.Yorba Linda, CA 928861689695082
- Ai-Vy Bui, DOYorba Linda, CA 928861821557984
- Lauren Choi, D.O.Yorba Linda, CA 928861134228109
- Gilbert GonzalesYorba Linda, CA 928861144261462
- Jon Kramer, MDYorba Linda, CA 928861962402941
- Lillian Lai-Wu, MDYorba Linda, CA 928861699776898
- Tanya Mayfield, MDYorba Linda, CA 928861104826189
Common questions
What is Steve O. Kwon, M.D.'s NPI number?
Steve O. Kwon, M.D.'s National Provider Identifier (NPI) is 1841399847, issued on Sep 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Steve O. Kwon, M.D. located?
The NPPES record lists a practice address at 4300 Rose Dr, Yorba Linda, CA, 92886. Phone: (714) 528-4211. Providers update this record themselves, so call before visiting.
How can I verify Steve O. Kwon, M.D.'s license?
NPPES lists California license number A85597, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. 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.