Dr. James Mason
Associate Staff Radiation Oncologist · Us Oncology Holdings
Overview
Experience
Skills
About Us Oncology Holdings
Professional Overview
Dr. James Mason is a Associate Staff Radiation Oncologist, currently affiliated with Us Oncology Holdings, based in San Diego, CA. As a oncologist, Dr. Mason contributes to patient care, clinical workflows, and healthcare operations in San Diego, CA. They have been with Us Oncology Holdings for 19 years. Core competencies include Healthcare, Cancer, Healthcare Management, Radiation, Clinical Research. Us Oncology Holdings operates in the Healthcare Services sector with a workforce of 5000+ employees. Healthcare organizations seeking to recruit oncologist professionals can use HealthTal to access direct email addresses and personal phone numbers compiled from public LinkedIn profile data and public licensing data in the NPI registry. Direct outreach to oncologist specialists consistently yields higher response rates than passive job board postings, particularly for roles requiring specific clinical credentials or state licensure. The San Diego, CA healthcare market offers access to a concentrated pool of clinical professionals, making direct outreach particularly effective for organizations building local care teams or expanding service capacity in the region.
Position in HealthTal Database
- 3,248 healthcare professionals in HealthTal hold the oncologist specialty. James Mason is one of them.
- 243 oncologists are based in CA (out of 155,460 total healthcare contacts in that state).
- 119 contacts at Us Oncology Holdings are tracked in HealthTal.
- Top employers of oncologists in CA: Kaiser Permanente (16), Sutter Health (6), The Permanente Medical Group (6).
- 4% of oncologists in CA hold a senior title (Director, Manager, Chief, VP, etc.).
- 74% of oncologists in CA have education credentials on file.
Data refreshed November 2026.
Recruiting oncologist
Healthcare professionals with oncologist expertise are recruited nationwide. Direct outreach via email and phone produces significantly faster placements than relying on job boards or passive candidates. HealthTal's database provides personal contact data, matched to public licensing data in the NPI registry where the professional holds an NPI.
Browse all oncologists →Frequently Asked Questions
Dr. James Mason is based in San Diego, CA. They are currently affiliated with Us Oncology Holdings.
Dr. James Mason specializes in oncologist. Their current role is Associate Staff Radiation Oncologist.
Dr. James Mason currently works at Us Oncology Holdings. They have been there for 19 years.
HealthTal provides direct email address and phone number for Dr. James Mason. Subscribe to access full contact details including personal email, direct dial, and LinkedIn profile.
Recruiting oncologists typically involves reaching out via direct email or phone. HealthTal's database provides contact data for oncologists across all 50 states, allowing you to contact candidates directly without going through job boards.