Jason Sun, M.D.
Radiation Oncology Physician · Wildomar, CA
Jason Sun, M.D. is a radiation oncology physician with a practice address in Wildomar, California, and NPI 1568691830, issued on Jul 8, 2009. Check the license (California A159761, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jason Sun
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License numbers
- A159761 CA
241530 MA
MD60242361 WA
Self-reported in NPPES; status is on the state search - Practice location
- 36320 Inland Valley Dr Ste 105, Wildomar, CA 92595
- Phone
- (951) 468-8588
- Enumerated
- Jul 8, 2009
- Record last updated
- Jul 31, 2023
- Fax
- (760) 503-5914
- Medicare enrollment
- Enrolled (PECOS I20190318002783); accepts Medicare assignment
- Medical or professional school
- Harvard Medical School, 2009
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 735 in California → Look up another NPI →
Verify Jason Sun in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A159761Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2% more Medicare Part D claims than the average radiation oncology physician in 2024
137 Medicare Part D claims for 55 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 17 claims were for opioids.
Most prescribed
- Tamsulosin Hcl39 claims
- Hydrocodone-Acetaminophen11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $97.16
4 payments; by number, the most common kind was food and beverage; the largest payer was Sumitomo Pharma America, 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 2 group practices
- Chad Sila M D A Professional CorporationLawndale, CA
- Tri-Valley Urology Medical GroupMurrieta, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jason Sun among 735 radiation oncology physician records in California
Jason Sun, M.D. 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 2009, is newer than 62% of them.
- NPI issued2009 · 62% of these records are older, 34% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2009 · median 2005 among the 545 with a school on file
- Record last updated2023 · 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 Wildomar → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Parima Daroui, M.D. PH.D.Wildomar, CA 925951629283841
- James Mason, MDWildomar, CA 925951902955818
- Brian Ronson, MDTemecula, CA 925921750364493
- Tara Washington, MDTemecula, CA 925921780621276
- Colton Ladbury, MDIrvine, CA 926181891256756
- Percy Lee, M.D.Irvine, CA 926181447442504
- Harry Moyses, M.D.Irvine, CA 926181376522300
- Selamawit Negusse, MDIrvine, CA 926181316144041
Common questions
What is Jason Sun, M.D.'s NPI number?
Jason Sun, M.D.'s National Provider Identifier (NPI) is 1568691830, issued on Jul 8, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Jason Sun, M.D. located?
The NPPES record lists a practice address at 36320 Inland Valley Dr Ste 105, Wildomar, CA, 92595. Phone: (951) 468-8588. Providers update this record themselves, so call before visiting.
How can I verify Jason Sun, M.D.'s license?
NPPES lists California license number A159761, 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.
How much does Jason Sun, M.D. prescribe under Medicare Part D?
In 2024, Jason Sun, M.D. had 137 Medicare Part D claims for 55 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions 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. 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.