Compare high-paying freelance options for California oncologists: locums, telemedicine, AI training, consulting. Real pay ranges, requirements, and how to start.

TL;DR

Looking for freelance or contract work as a oncologist in California? Whether you want to supplement your income or transition to independent practice, California offers several high-paying options. Here's how the top opportunities compare.

1.

Healthcare Consulting / Advisory Boards

$300-$700/hr

What You'll Do

Oncologists advise pharmaceutical companies, healthcare organizations, or policy groups on cancer treatment protocols, drug development, and oncology service optimization. Participation in advisory boards involves reviewing clinical trial data and providing strategic input on emerging therapies. Work supports guideline development and quality improvement in cancer care.

Requirements

  • Board certification in Oncology
  • 5+ years experience
  • Expertise in specific cancer types
  • Active license preferred

Malpractice Insurance: No

Where to Find Work

  • PhysicianSideGigs
  • 10+ yr experience $700+/hr), GLG/AlphaSights/Guidepoint

California notes: Bay Area biotech/pharma hub drives premium demand for oncology KOLs; Silicon Valley health-tech startups add additional consulting opportunities; Pharma advisory boards $400-$700/hr for subspecialty KOLs; Expert networks (GLG/AlphaSights/Guidepoint) $300-$499/hr; General consulting $150-$300/hr
Typical start timeline: 4-8 weeks

2.

Expert Witness / Medical-Legal

$350-$600/hr

What You'll Do

Oncologists review medical records, provide expert opinions on standard of care in oncology cases, and testify in legal proceedings related to cancer diagnosis or treatment. Work involves preparing detailed reports on malpractice claims or personal injury cases involving chemotherapy errors or misdiagnoses. Assignments focus on oncology-specific expertise for attorneys or courts.

Requirements

  • Active California license
  • Board certification in Oncology
  • 5+ years clinical experience
  • Strong documentation skills

Malpractice Insurance: No

Where to Find Work

  • SEAK 2024 Expert Witness Fee Study

California notes: No significant geographic variation within state; rates set by expertise and case complexity; Radiation Oncology avg $490/hr; Hematology-Oncology $300-$475/hr; Deposition $475-$582/hr; Trial testimony $500-$622/hr
Typical start timeline: 2-4 weeks

3.

Locum Tenens / Per Diem

$225-$500/hr

What You'll Do

Oncologists provide temporary clinical coverage at hospitals or clinics, managing patient consultations, chemotherapy administration, and follow-up care for cancer patients. Assignments typically involve full or half-day shifts seeing 8-16 patients, including new and return oncology/hematology cases. Work often occurs in resource-limited settings like county hospitals with diverse patient demographics.

Requirements

  • Active California medical license
  • Board certification in Hematology/Oncology
  • DEA certification
  • Minimum 2-4 years experience
  • EPIC EMR and Beacon chemotherapy experience preferred
  • Spanish fluency preferred for some roles

Malpractice Insurance: Typically provided by employer

Where to Find Work

  • CompHealth
  • Med Onc $375-$500/hr), AMN Healthcare
  • avg $819k/yr for CA Hem/Onc), ZipRecruiter

California notes: Bay Area (SF/San Jose) +10-15% premium; Rural Northern CA +20-30% premium; AMN avg CA Hem/Onc ~$819k/yr annualized; Hematology-Oncology $375-$500/hr; Radiation Oncology $225-$300/hr; Gynecologic Oncology $288-$326/hr
Typical start timeline: 60-90 days

4.

AI Training & Annotation

$200-$425/hr

What You'll Do

Healthcare AI companies hire oncologist professionals to review, annotate, and validate training data for medical AI systems. Work involves oncology treatment protocol and imaging ai training — tasks like treatment protocol review, tumor measurement, clinical trial matching.

Requirements

  • Active clinical background in oncologist
  • No malpractice insurance needed
  • Computer with reliable internet

Malpractice Insurance: No

Where to Find Work

  • Folio (folioworks.com)
  • Centaur Labs
  • Appen
  • Labelbox

California notes: Fully remote — available regardless of state. Pay based on specialty expertise, not location.
Typical start timeline: 1-2 weeks

Getting started: Join the expert community and make a free profile on Folio to browse current oncologist AI training projects.

5.

Chart Review / Utilization Review

$125-$300/hr

What You'll Do

Oncologists evaluate patient charts for insurance pre-authorizations, treatment necessity, and adherence to oncology guidelines. Work involves assessing chemotherapy regimens, imaging studies, and care plans for cost-effectiveness and medical appropriateness. Assignments support payers or hospitals in managing utilization and reducing denials.

Requirements

  • Active California license
  • Board certification
  • 3+ years experience
  • Knowledge of payer guidelines

Malpractice Insurance: No

Where to Find Work

  • Indeed

California notes: Fully remote positions dominate; no geographic variation; CA license often required or IMLC accepted; UM Medical Director (Oncology) $125-$175/hr; Radiation Oncology UM Director $115-$172/hr (Optum $238k-$358k/yr FT); Peer-to-peer reviews $150-$300/hr
Typical start timeline: 1-4 weeks

6.

Telemedicine / Telehealth

$150-$280/hr

What You'll Do

Oncologists conduct virtual consultations for cancer patient follow-ups, symptom management, and treatment planning via video or phone. Work includes remote chemotherapy regimen reviews and coordination with local providers for infusions. This supports access to specialized oncology care in underserved California areas.

Requirements

  • Active California license
  • Board certification
  • Telehealth platform experience
  • Reliable internet and private space

Malpractice Insurance: Yes ($5,000-$15,000/year)

Where to Find Work

  • ZipRecruiter

California notes: No geographic variation for remote work; CA licensing required; Bay Area-based platforms may offer higher rates; Oncology specialist telemedicine $150-$280/hr; General telemedicine physician CA avg $114/hr; SF area premium $136-$181/hr
Typical start timeline: 2-6 weeks

Common Questions People Ask

Q: What are the highest-paying freelance options for oncologists in California?

A: Based on current market data, the top 3 are: Healthcare Consulting / Advisory Boards ($300-$700/hr), Expert Witness / Medical-Legal ($350-$600/hr), Locum Tenens / Per Diem ($225-$500/hr).

Q: Which freelance options for oncologists don't require malpractice insurance?

A: 4 options don't require malpractice insurance: Healthcare Consulting / Advisory Boards ($300-$700/hr), Expert Witness / Medical-Legal ($350-$600/hr), AI Training & Annotation ($200-$425/hr), Chart Review / Utilization Review ($125-$300/hr). This can save $25-$60K annually compared to options requiring coverage.

Q: Can oncologists work remotely in California?

A: Yes, 5 options are fully or partially remote: Healthcare Consulting / Advisory Boards ($300-$700/hr), Expert Witness / Medical-Legal ($350-$600/hr), AI Training & Annotation ($200-$425/hr), Chart Review / Utilization Review ($125-$300/hr), Telemedicine / Telehealth ($150-$280/hr).

Q: What California license do oncologists need for freelance work?

A: An active California license from Medical Board of California is required for most clinical freelance options.

Q: How quickly can oncologists start freelance work?

A: Timeline varies by option: Healthcare Consulting / Advisory Boards typically takes 4-8 weeks, while Expert Witness / Medical-Legal typically takes 2-4 weeks, while Locum Tenens / Per Diem typically takes 60-90 days.

Q: What's the pay range for oncologists doing AI training work?

A: AI training pays $200-$425/hour for oncologists, varying by experience level and project complexity. No malpractice insurance required.

Getting Started with AI Training

Folio connects California oncologists with frontier research labs and healthcare AI companies looking for clinical expertise. The platform vets AI companies for project quality, handles contracting and payment, and matches projects to your area of expertise.

Typical timeline:
- Application: 3 minutes
- Credential review: 2-3 business days
- Platform orientation: 1 hour
- First project: 3-7 days from application

Current project focus (February 2026): Treatment protocol review, tumor measurement, clinical trial matching

Most oncologists start with 5-10 hours weekly, then scale based on preference. No minimum commitment.

Explore AI Training Opportunities

Questions? Email experts@folioworks.com

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Frequently asked questions

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Do I need malpractice insurance for freelance oncologist work in California?
Can I do freelance work while employed full-time as a oncologist?
What is AI training for oncologists, and how does it work?
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How do I get started with freelance oncologist work in California?