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Department Radiation Oncology
Primary Location Cleveland Clinic Main Campus
Type of Doctor Adults Only
Languages English
Surgeon No
Cleveland Clinic Main Campus
Primary Location

Cleveland Clinic Main Campus

Specialties & Treatments

Treatment & Services

  • Body Radiosurgery
  • Brachytherapy
  • Clinical Trials
  • External Beam Radiotherapy
  • Fractionated Radiotherapy
  • Hyperfractionated Radiation Therapy
  • Image-Guided Radiation Therapy
  • Intensity Modulated Radiation Therapy
  • Intraoperative Radiation Therapy (IORT)
  • Radiation Oncology
  • Radiation Therapy
  • Stereotactic Body Radiation Therapy (SBRT)
View all 12 Treatment & Services +

Specialty in Diseases & Conditions

  • Anal Cancer
  • Cancer
  • Cervical Cancer
  • Colon Cancer
  • Colorectal Cancer
  • Endometrial Cancer
  • Gastrointestinal Malignancies
  • Gynecologic Malignancies
  • Large Intestine Cancer
  • Metastatic Cancer
  • Ovarian Cancer
  • Rare Cancer and Blood Disease Program
  • Rectal Cancer
  • Squamous Cell Carcinoma
  • Uterine Cancer
  • Vaginal Cancer
  • Vulvar Cancer
View all 17 Specialties +


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About Sudha Amarnath, MD

Sudha Amarnath, MD is a Radiation Oncologist who has been in practice since 2013. She is Director of Gynecologic and Colorectal Malignancies in the Department of Radiation Oncology at the Taussig Cancer Institute at the Cleveland Clinic.

Dr. Amarnath received a Bachelor’s in Science degree in Chemical Engineering and a Bachelor’s in Science Degree in Biology at the Massachusetts Institute of Technology. While at MIT, she received the prestigious Robert T. Haslam Cup in Chemical Engineering and membership into Phi Beta Kappa and Tau Beta Pi Honor Societies. She subsequently received her Doctorate in Medicine degree from the University Of Michigan School Of Medicine where she was a recipient of the Dean’s Merit Scholarship and inducted into the Alpha Omega Alpha Medical Honor Society. She completed her residency in Radiation Oncology at the University of Washington, where she served as Chief Resident in her final year of residency. She is a member of the American Society for Radiation Oncology (ASTRO) and the American Association of Women in Radiology (AAWR).

Dr. Amarnath specializes in the treatment of gynecologic and colorectal cancers with research interests in female sexual dysfunction and quality of life after pelvic radiation and inflammatory bowel disease and pelvic radiation. In addition to her clinical interests, Dr. Amarnath has a passion for education and received the Association of  Residents in Radiation Oncology (ARRO) Educator of the Year award in 2014. She serves as the Medical Student Clerkship Director and Associate Residency Program Director for the Department of Radiation Oncology.  Dr. Amarnath is also highly active in cancer programming efforts and is a co-leader of the Gynecologic Oncology Cancer Program and also serves on several committees within the Taussig Cancer Institute that aim to improve the quality of care delivered to cancer patients. She is currently working on the development of leadership and mentorship programs for residents and junior faculty in the Taussig Cancer Institute and Women’s Health Institute. Dr. Amarnath resides in Cleveland, Ohio with her husband and daughter.

Education & Professional Highlights

Education & Professional Highlights


Education & Fellowships

Residency - University of Washington Medical Center
Radiation Oncology
Seattle, WA USA

Internship - Scripps Mercy Hospital
Transitional Year
San Diego, CA USA

Medical Education - University of Michigan Medical School
Ann Arbor, MI USA

Undergraduate - Massachusetts Institute of Technology
Cambridge, MA USA


  • Radiology - Radiation Oncology

Specialty Interests

Gynecologic Malignancies, Palliative Care, Colorectal, Brachytherapy, and IORT

Research & Publications

Research & Publications

See publications for Sudha Amarnath, MD.

(Disclaimer: This search is powered by PubMed, a service of the U.S. National Library of Medicine. PubMed is a third-party website with no affiliation with Cleveland Clinic.)

Industry Relationships

Industry Relationships

Cleveland Clinic physicians and scientists may collaborate with the pharmaceutical or medical device industries to help develop medical breakthroughs or provide medical expertise or education. Cleveland Clinic strives to make scientific advances that will benefit patient care and support outside relationships that promise public benefit. In order for the discoveries of Cleveland Clinic physicians' and scientists' laboratories and investigations to benefit the public, these discoveries must be commercialized in partnership with industry. As experts in their fields, Cleveland Clinic physicians and scientists are often sought after by industry to consult, provide expertise and education.

To assure professional and commercial integrity in such matters, Cleveland Clinic maintains a program that reviews these collaborations and, when appropriate, puts measures in place to minimize bias that may result from ties to industry. Cleveland Clinic publicly discloses the names of companies when (i) its physicians/scientists receive $5,000 or more per year (or, in rare cases, equity or stock options) for speaking and consulting, (ii) its physicians/scientists serve as a fiduciary, (iii) its physicians/scientists receive or have the right to receive royalties or (iv) its physicians/ scientists hold any equity interest for the physician's/scientist's role as inventor, discoverer, developer, founder or consultant.* In publicly disclosing this information, Cleveland Clinic tries to provide information as accurately as possible about its physicians' and scientists' connections with industry.

As of 3/20/2024, Dr. Amarnath has reported the financial relationships with the companies listed below. In general, patients should feel free to contact their doctor about any of the relationships and how the relationships are overseen by Cleveland Clinic. To learn more about Cleveland Clinic's policies on collaborations with industry and innovation management, go to our Integrity in Innovation page.

Public Health Service-Reportable Financial Conflicts of Interest. Cleveland Clinic scientists and physicians engage in basic, translational and clinical research activities, working to solve health problems, enhance patient care and improve quality of life for patients. Interactions with industry are essential to bringing the researchers' discoveries to the public, but can present the potential for conflicts of interest related to their research activities. Click here to view a listing of instances where Cleveland Clinic has identified a Public Health Service (PHS)-Reportable Financial Conflict of Interest and has put measures in place to ensure that, to the extent possible, the design, conduct and reporting of the research is free from bias.

* Cleveland Clinic physicians and scientists subscribe to the guidance presented in the PhRMA Code on Interactions with Healthcare Professionals and the AdvaMed Code of Ethics on Interactions with Health Care Professionals. As such, gifts of substantial value are generally prohibited.

Patient Satisfaction Reviews

96 Patient Satisfaction Reviews

The Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our nationally-recognized Press Ganey Patient Satisfaction Survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.

Responses are measured on a scale of 1 to 5 with 5 being the best score.

The comments are submitted by patients and reflect their views and opinions. The comments are not endorsed by and do not necessarily reflect the views of Cleveland Clinic.

Overall Star Ratings
4.9 out of 5
Explains 4.9
Courtesy, Respect & Concern 4.9
Patient Rating of Doctor 4.9

19 Patient Comments

Reviewed on May 8, 2024

The Dr spent a good amount of time explaining procedures to me. Very helpful!

Reviewed on Apr 24, 2024

Very nice doctor. The The resident doctors were very nice too. No complaints

Reviewed on Apr 16, 2024

The doctor and her resident were both exceptionally friendly, caring and informative.

Reviewed on Mar 13, 2024

Dr A is wonderful and always takes time to explain everything.

Reviewed on Mar 13, 2024

Dr A always explains everything and answers all my questions.

Reviewed on Jan 31, 2024

We reviewed all my medical issues (even the ones she doesn't treat) to make sure the plan of action was comprehensive and best for me

Reviewed on Jan 23, 2024

Dr. Amaranth visited me while I was having chemo, which was convenient. The appt was scheduled in advance.

Reviewed on Jan 16, 2024

Dr Amarnath is outstanding. Very grateful she is my doctor

Reviewed on Jan 4, 2024

Treated me like her family.

Reviewed on Dec 21, 2023

Dr armanath and her team are wonderful.

Reviewed on Dec 7, 2023

Dr. Amarnath is excellent, skilled, caring and always covers what is going on about your conditions, and your questions. Very thorough and I feel attuned to her patients. Glad to be seen by her and her staff.

Reviewed on Dec 7, 2023

Thank you all for caring, it's a tough job that the medical staff and doctors do it well.

Reviewed on Oct 26, 2023

Dr. Amarnath has always been kind, considerate, compassionate, understanding, and very thorough and explaining things. In my opinion, she's a very good doctor.

Reviewed on Oct 24, 2023

Dr Amarnath is excellent she is thorough, very patient, caring I cannot say enough good about her.

Reviewed on Sep 18, 2023

Dr Amernath spends the time to answer and questions and responds promptly when messages are left

Reviewed on Sep 13, 2023

Dr Sudan Amarnath is an exceptional physician. She is friendly, kind and caring. She took a great deal of time with me, knew my medical issues before she walked in the door of the exam room, and answered ALL of my questions and concerns with understandable responses. Dr Amarnath has my complete trust.

Reviewed on Jul 20, 2023

The doctor listens and responds to questions thoughtfully and clearly

Reviewed on Jul 19, 2023

Dr Amarnath is just the best! Very grateful for the care and excellent treatment outcome.

Reviewed on Jun 14, 2023

Such a good experience, she is exactly who a physician should be. She is a role model!

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