Robert Sung Gil Kwon, MD
Radiation Oncology Physician · Laguna Hills, CA
Robert Sung Gil Kwon, MD is a radiation oncology physician with a practice address in Laguna Hills, California, and NPI 1841294337, issued on Jun 13, 2005. Check the license (California A63998, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Robert Sung Gil Kwon
- Credential
- MD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- A63998 CA
Self-reported in NPPES; status is on the state search - Practice location
- 24302 Paseo DE Valencia, Laguna Hills, CA 92653
- Phone
- (949) 452-8880
- Enumerated
- Jun 13, 2005
- Record last updated
- Apr 29, 2026
- Medicaid ID
- 00A639980 CA
- Medicare enrollment
- Enrolled (PECOS I20041001000677); accepts Medicare assignment
- Medical or professional school
- Temple University School Of Medicine, 1995
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 735 in California → Look up another NPI →
Also registered at 24302 Paseo DE Valencia
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kavaljit Chahal, N.P.Nurse Practitioner1831436534
- Linda Chan, M.D.Radiation Oncology Physician1083844427
- Alicia Scocchia, M.S., L.C.G.C.Genetic Counselor (M.S.)1376935155
- Andrew Zhang, MDRadiation Oncology Physician1821417627
Verify Robert Sung Gil Kwon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A63998Check 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: $410.17
7 payments; by number, the most common kind was food and beverage; the largest payer was Bioprotect Medical, Inc. The 3,275 providers of this specialty with any payment received $1,897.85 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.
Bills Medicare through one group practice
- Memorialcare Medical FoundationLaguna Hills, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert Sung Gil Kwon among 735 radiation oncology physician records in California
Robert Sung Gil Kwon, MD is one of 735 radiation oncology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 84% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated1995 · median 2005 among the 545 with a school on file
- Record last updated2026 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in California
There are 735 radiation oncology physician records in California.
All 735 in California → Every provider in Laguna Hills → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Linda Chan, M.D.Laguna Hills, CA 926531083844427
- Joel Cherlow, M.D., PH.D.Laguna Hills, CA 926531194736710
- Andrew Zhang, MDLaguna Hills, CA 926531821417627
- Stephen Doggett, M.D.Newport Beach, CA 926601982675021
- Peter Chen, MDNewport Beach, CA 926631720031800
- Craig Cox, MDNewport Beach, CA 926631134172398
- Brian Kim, MDNewport Beach, CA 926631316990567
- Kevin Lin, M.D.Newport Beach, CA 926631548441454
Common questions
What is Robert Sung Gil Kwon, MD's NPI number?
Robert Sung Gil Kwon, MD's National Provider Identifier (NPI) is 1841294337, issued on Jun 13, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Robert Sung Gil Kwon, MD located?
The NPPES record lists a practice address at 24302 Paseo DE Valencia, Laguna Hills, CA, 92653. Phone: (949) 452-8880. Providers update this record themselves, so call before visiting.
How can I verify Robert Sung Gil Kwon, MD's license?
NPPES lists California license number A63998, 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.