Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jason Sun, M.D.

Radiation Oncology Physician in Wildomar, CA · enumerated 2009.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1568691830

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Registry record

Entity type Individual (Type 1)

Name Jason Sun

Credential M.D.

Sex Male

Practice address 36320 Inland Valley Dr Ste 105, Wildomar, CA, 92595

Phone (951) 468-8588

Fax (760) 503-5914

Enumeration date Jul 8, 2009

Last updated in NPPES Jul 31, 2023

Taxonomy & licenses

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License MD60242361 (WA) Secondary

2471R0002X Radiation Therapy Radiologic Technologist Technologists, Technicians & Other Technical Service Providers Secondary

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care · License 241530 (MA) Secondary

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License A159761 (CA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Jason Sun?

Jason Sun is registered in NPPES with the primary taxonomy of Radiation Oncology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-07-31.