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Mount Sinai Health Systems
New York, New York

Per Diem Radiation Therapist- Radiation Oncology- Mount Sinai West

Radiation TherapistPer Diem

Listed compensation

$60 Hourly

The week · per this posting

Ask the employer about the work setting, call expectations, weekend coverage and time off.

Posted 1 day ago · Verified live

Job Description

Administer radiation therapy treatments according to the Radiation Oncologist’s prescription under minimal supervision.

  • Keep accurate daily records of treatments administered.
  • Teaches radiation therapy students technical procedures under the supervision of the Senior Radiation Therapist on duty
  • Demonstrates strong understanding of practical psychology, the physiology of cancer, and the emotional and physical responses of patients undergoing treatment

Responsibilities

  • 1. Accurately sets-up patients for treatment
  • 2. Administers radiation treatments
  • 3. Maintains accurate daily treatment records
  • 4. Perform simple dose calculations using computer software
  • 5. Checks the Radiation Oncologist’s prescription to determine any mathematical or technical errors
  • 6. Performs safety checks on treatment machines/simulators and records data daily

7. Verifies/Localizes treatment area using radiographic film or electronic medium and submits films to appropriate staff for further action

8. Interprets beam films to determine accuracy and follows through with having films checked and approved by the appropriate Radiation Oncologist

9. Understands the function of the equipment and is able to use it to its full potential. Understands the use of wedges and compensating filters, appreciates the misuse or omission during treatment

10. Understand all procedures and practices before proceeding with the patient set-up. Contacts the appropriate staff if uncomfortable or unsure of procedure

11. Detects treatment unit malfunctions and knows when safe limits of malfunction have been reached. Reports malfunction to Senior Therapist, Chief Therapist and Physics

12. Explains treatment procedure to patients, answer questions, and reassures patient in order to alleviate fears and/or apprehension. Tends to patient modesty

  • 13. Maintains visual and audible communication with the patient during treatment
  • 14. Reports any unusual or adverse patient reactions, as a result of radiation treatment, to the appropriate staff member
  • 15. Is responsible for instructing student radiation therapist
  • 16. Assists Senior Therapist in the evaluation of students at the end of their rotation
  • 17. Maintains an organized treatment room, stocked with supplies
  • 18. Assist Senior Therapist with chart checks and scheduling as needed

19. Attends chart rounds, displays films and participates in discussion of patient treatment. Attends in service and ad hoc training sessions

20. Creates immobilization devices during simulator rotation. Create/adjust shielding block as needed

  • 21. Keeps patients in waiting area informed of delays and any progress made in the resolution of the delays
  • 22. Displays professional behavior at all times

Qualifications

Education Requirements

Graduate of AMA approved school in radiation therapy.

Experience Requirements

One year experience in clinical therapeutic radiation therapy. Clinical rotation in approved schools can be considered for the experience.

  • Licensing and Certification Requirements
  • Name: Radiation Therapist Issuing Agency: DOH / Office of Professions

Employer Description

Strength Through Unity and Inclusion

The Mount Sinai Health System is committed to fostering an environment where everyone can contribute to excellence. We share a common dedication to delivering outstanding patient care.

When you join us, you become part of Mount Sinai’s unparalleled legacy of achievement, education, and innovation as we work together to transform healthcare.

We encourage all team members to actively participate in creating a culture that ensures fair access to opportunities, promotes inclusive practices, and supports the success of every individual.

At Mount Sinai, our leaders are committed to fostering a workplace where all employees feel valued, respected, and empowered to grow. We strive to create an environment where collaboration, fairness, and continuous learning drive positive change, improving the well-being of our staff, patients, and organization.

Our leaders are expected to challenge outdated practices, promote a culture of respect, and work toward meaningful improvements that enhance patient care and workplace experiences.

We are dedicated to building a supportive and welcoming environment where everyone has the opportunity to thrive and advance professionally. Explore this opportunity and be part of the next chapter in our history.

About the Mount Sinai Health System

Mount Sinai Health System is one of the largest academic medical systems in the New York metro area, with more than 48,000 employees working across eight hospitals, more than 400 outpatient practices, more than 300 labs, a school of nursing, and a leading school of medicine and graduate education.

Mount Sinai advances health for all people, everywhere, by taking on the most complex health care challenges of our time — discovering and applying new scientific learning and knowledge; developing safer, more effective treatments; educating the next generation of medical leaders and innovators; and supporting local communities by delivering high-quality care to all who need it.

Through the integration of its hospitals, labs, and schools, Mount Sinai offers comprehensive health care solutions from birth through geriatrics, leveraging innovative approaches such as artificial intelligence and informatics while keeping patients’ medical and emotional needs at the center of all treatment.

The Health System includes more than 9,000 primary and specialty care physicians; 13 joint-venture outpatient surgery centers throughout the five boroughs of New York City, Westchester, Long Island, and Florida; and more than 30 affiliated community health centers.

We are consistently ranked by U.S. News & World Report's Best Hospitals, receiving high "Honor Roll" status, and are highly ranked: No. 1 in Geriatrics, top 5 in Cardiology/Heart Surgery, and top 20 in Diabetes/Endocrinology, Gastroenterology/GI Surgery, Neurology/Neurosurgery, Orthopedics, Pulmonology/Lung Surgery, Rehabilitation, and Urology.

New York Eye and Ear Infirmary of Mount Sinai is ranked No. 12 in Ophthalmology. U.S. News & World Report’s “Best Children’s Hospitals” ranks Mount Sinai Kravis Children's Hospital among the country’s best in several pediatric specialties.

The Icahn School of Medicine at Mount Sinai is ranked No. 11 nationwide in National Institutes of Health funding and in the 99th percentile in research dollars per investigator according to the Association of American Medical Colleges.

Newsweek’s “The World’s Best Smart Hospitals” ranks The Mount Sinai Hospital as No. 1 in New York and in the top five globally, and Mount Sinai Morningside in the top 20 globally.

Equal Opportunity Employer

The Mount Sinai Health System is an equal opportunity employer, complying with all applicable federal civil rights laws.

We do not discriminate, exclude, or treat individuals differently based on race, color, national origin, age, religion, disability, sex, sexual orientation, gender, veteran status, or any other characteristic protected by law.

We are deeply committed to fostering an environment where all faculty, staff, students, trainees, patients, visitors, and the communities we serve feel respected and supported.

Our goal is to create a healthcare and learning institution that actively works to remove barriers, address challenges, and promote fairness in all aspects of our organization.

Compensation

The Mount Sinai Health System (MSHS) provides salary ranges that comply with the New York City Law on Salary Transparency in Job Advertisements. The salary range for the role is $60 - $60 Hourly. Actual salaries depend on a variety of factors, including experience, education, and operational need. The salary range or contractual rate listed does not include bonuses/incentive, differential pay or other forms of compensation or benefits.

Qualifications

Education
Professional certificate or licensure

Key Skills

Equipment safety checksTreatment planningClinical documentationPatient immobilizationRadiation oncologyStudent instructionRadiographic film interpretationMedical equipment maintenancePatient communication

Radiation Therapy Career Context

Of the 40 active Radiation Therapy listings this role was benchmarked against, 25% have no call, 75% require no weekends.

The cost-of-living index for New York is 107.9 (US average = 100; BEA Regional Price Parities (2024)). 64.6% of New York clinicians report burnout symptoms in WeekdayDoc's Burnout Index (2026-01 data).

Top Radiation Therapist Jobs

36 matches · ranked by pay

Salary Distribution25 jobs

6
<$125k
7
$125k-150k
7
$150k-175k
3
$175k-200k
2
$200k+

Annual compensation range

Benefits & Perks22 jobs

401k / retirement match
82%
Sign-on bonus
59%
CME allowance
23%
Loan repayment
14%
Relocation assistance
14%

Share of similar jobs offering each benefit

#1

Radiation Therapist - Sharp Grossmont Hospital - Days - Per DiemPer Diem

Sharp HealthCare · La Mesa, California

$68.45-$98.92/hr
#2

PRN Radiation TherapistPer Diem

Valley View · Glenwood Springs, Colorado

$46.75-$70.13/hr
#3

Radiation Therapist

$38.57-$67.5/hr
#4

Radiation Therapist, Per Diem

$47-$63.26/hr
+ 34 more · ranked by pay

Work-life snapshot

median 5.1this job 1.5
Below most Radiation Therapy listings for work-life

Listing-based score, 0–10, across 558 comparable listings. Shaded area = the share scoring below this one.

Living in New York

Typical 3-bedroom home value
$876k
Typical market rent
$4,154/mo
Residents’ average commute
40 min
State income tax
Up to 10.9%
Sources & methodology

Sources: Zillow home values (Aug 2026), Zillow market rents (Aug 2026), U.S. Census ACS 2024 five-year.

City-level figures. Not a cost-of-living guarantee.