Back to Search
JM

Dr. James Mason

Associate Staff Radiation Oncologist

oncologist San Diego, CA Us Oncology Holdings
j.doe@example.com linkedin.com/in/...
Reveal Contact Info
Overview
Level
Staff
Tenure
19 years at Us Oncology Holdings
Gender
Male
Connections
45
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 155,461 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 verified education credentials on file.
  • Data refreshed June 2026.

Public records & verifications
  • Verify against the NPPES Provider Registry (HHS / CMS). Search NPPES →
  • Professional LinkedIn profile on file (subscribers only).
  • Data aggregated from public licensure databases, LinkedIn, and verified employer records. Cross-check via the registry link above.
Skills
Healthcare Cancer Healthcare Management Radiation Clinical Research Oncology Medicine Radiation Therapy Hospitals Patient Safety Treatment Board Certified Research Emr
About Us Oncology Holdings
Industry
Healthcare Services
Employees
5000+
Revenue
$100M to <$1B
Website
usoncology.com
Office Location
44274 George Cushman Ct, Temecula, CA
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 verified direct email addresses and personal phone numbers sourced from NPI records and professional licensing databases. 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.

Recruiting oncologist

Healthcare professionals with oncologist expertise are recruited nationwide. Direct outreach via verified email and phone produces significantly faster placements than relying on job boards or passive candidates. HealthTal's database provides personal contact data verified against NPI and state licensing records.

Browse all oncologists →

Frequently Asked Questions

Where is Dr. James Mason located?
Dr. James Mason is based in San Diego, CA. They are currently affiliated with Us Oncology Holdings.
What is Dr. James Mason's specialty?
Dr. James Mason specializes in oncologist. Their current role is Associate Staff Radiation Oncologist.
Where does Dr. James Mason currently work?
Dr. James Mason currently works at Us Oncology Holdings. They have been there for 19 years.
How do I contact Dr. James Mason for recruiting?
HealthTal provides verified direct email address and phone number for Dr. James Mason. Subscribe to access full contact details including personal email, direct dial, and LinkedIn profile.
How do I recruit a oncologist?
Recruiting oncologists typically involves reaching out via direct email or phone. HealthTal's database provides verified contact data for oncologists across all 50 states, allowing you to contact candidates directly without going through job boards.

Similar Professionals in CA

LC
Lindsey Charo
Gynecologic Oncologist
San Diego, CA
BM
Bryan Marker
Oncologist
San Francisco, CA
JU
James J Urbanic
Radiation Oncologist at Uc San Diego Health System
San Diego, CA
VL
Vivian Le-Tran Do Facs
Breast Surgical Oncologist
Orange, CA
PW
Phillis Wu
Hematologist & Oncologist
Los Angeles, CA
DP
Diana Pearre
Gynecologic Oncologist
Burbank, CA
JC
Jose Carrillo
Neuro-Oncologist at Pacific Neuroscience Institute Santa Monica Ca
Santa Monica, CA
NG
Nicholas Giacalone
Radiation Oncologist
Oakland, CA