James MasonMD
Radiation Oncology·Wildomar, CA
James Mason, MD is a Radiation Oncology provider in Wildomar, CA, as of July 2026.
- NPI1902955818
- Registered2007
- Class of1988
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
Education
Education on record as of August 2026.
James Mason at a glance
- Provider
- James Mason
- Credential
- MD
- Specialty
- Radiation Oncology
- Location
- Wildomar, CA
- Medical school
- Wayne State University School of Medicine
- Graduated
- 1988
- NPI registered
- 2007
- NPI
- 1902955818
- Snapshot
- July 2026
Identity, specialty, and affiliations change over time. This is not an endorsement, and not clinical, billing, or legal advice. Providers may request corrections at founders@datalilyai.com. Read the DataLily AI data methodology.
Questions
Where does James Mason practice?
James Mason, MD is based in Wildomar, CA. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is James Mason's NPI number?
James Mason's National Provider Identifier (NPI) is 1902955818, registered in 2007. Specialty on record: Radiation Oncology; credential MD.
Where did James Mason go to medical school?
James Mason, MD attended Wayne State University School of Medicine, graduating in 1988.
How many Radiation Oncology providers in California work at ambulatory surgery centers?
88 Radiation Oncology surgeons and proceduralists in California are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, James Mason among them. The California Radiation Oncology directory lists each one by city with credential, NPI, and center affiliations.
Pilot Analysis
Get the complete James Mason analysis
Tell us where to send it. Our team will prepare an analysis of James Mason covering case volumes, referral patterns, payer mix, and how specialty peers compare, and email it to you within 5-10 business days. Need it faster? Book a demo.