Department Brain Tumor and Neuro-Oncology Center
Primary Location Cleveland Clinic Main Campus
Type of Doctor Both Adults and Children & Adolescents
Languages English
Surgeon No
Cleveland Clinic Main Campus
Primary Location

Cleveland Clinic Main Campus


Additional Locations

Specialties & Treatments

Treatment & Services

  • Adult Neuro-Oncology
  • Body Radiosurgery
  • Brachytherapy
  • Brain Tumor Management
  • Cancer Center
  • Clinical Trials
  • Cranial Radiosurgery
  • External Beam Radiotherapy
  • Fractionated Radiotherapy
  • Gamma Knife Radiosurgery
  • Gamma Knife Treatment
  • General Radiation Oncology
  • Hyperfractionated Radiation Therapy
  • Image Guided Radiation Therapy
  • Intensity Modulated Radiation Therapy
  • Novalis Radiosurgery/Radiotherapy
  • Pediatric Neuro-Oncology
  • PET in Tumors
  • Radiation Oncology
  • Radiation Therapy
  • Radiotherapy
  • Spinal Radiosurgery
  • Spine Radiosurgery
  • Stereotactic Body Radiation Therapy (SBRT)
  • Stereotactic Body Radiotherapy
  • Stereotactic Radiosurgery
View all 26 Treatment & Services +

Specialty in Diseases & Conditions

  • Acoustic Neuroma
  • Adult Brain Tumors
  • Anaplastic Astrocytomas
  • Anaplastic Oligodendrogliomas
  • Astrocytoma
  • Benign Brain Tumors
  • Benign Tumors of the Brain
  • Benign Tumors of the Spinal Cord
  • Brain Cancer (Brain Tumor)
  • Brain Lymphoma
  • Brain Metastases
  • Cancer
  • Cavernous Sinus Tumors
  • Central Nervous System (CNS) Malignancies
  • Chordomas
  • Clival Chordomas
  • Ependymomas
  • Glioblastoma Multiforme
  • Hemangioblastomas
  • Heterotopic Ossification
  • Malignant Gliomas
  • Malignant Tumors of the Brain
  • Malignant Tumors of the Spinal Cord
  • Meningioma
  • Myeloma
  • Ocular Lymphomas
  • Ocular Mets
  • Oligodendroglioma
  • Ophthalmic Tumors
  • Pediatric Brain Cancer
  • Pediatric Spine Tumors
  • Pituitary Tumors
  • Primary Central Nervous System Lymphomas
  • Retinal Hemangioma
  • Retinoblastoma
  • Sarcomas of the Brain or Head
  • Skull Base Cancer
  • Spinal Cancer
  • Spinal Metastases
  • Spine Tumors
  • Trigeminal Neuralgia
  • Uveal Melanoma
View all 42 Specialties +


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About Samuel Chao, MD

Samuel Chao, MD, obtained his Bachelor's degree in chemistry with Honors and Distinction from Stanford University. He attended medical school at Case Western Reserve University and stayed in Cleveland to specialize in radiation oncology at Cleveland Clinic, where he is currently on Staff. His appointment is under the Brain Tumor and Neuro-Oncology Center and the Department of Radiation Oncology. Dr. Chao is also Associate Professor at the Cleveland Clinic Lerner College of Medicine of Case Western Reserve University.

His clinical interests include adult and pediatric brain tumors, brain metastases, heterotopic ossification, stereotactic radiosurgery of the brain and spine, Gamma Knife radiosurgery, intensity-modulated radiation therapy and image-guided radiation therapy. His research interests include improving quality of life following treatment, and outcomes following radiation to the brain and spine. He is actively involved in research studies for brain and spine tumors.

Dr. Chao has been invited nationally and internationally to give lectures on the management of brain and spine tumors using radiation. He is a lecturer for the Cleveland Clinic Gamma Knife course. He has authored numerous papers and book chapters regarding radiation for benign disease and malignant tumors.
Education & Professional Highlights

Education & Professional Highlights


Education & Fellowships

Residency - Cleveland Clinic
Radiation Oncology
Cleveland, OH USA

Internship - Cleveland Clinic
Transitional Year
Cleveland, OH USA

Medical Education - Case Western Reserve University
Cleveland, OH USA

Undergraduate - Stanford University
Stanford, CA USA

Additional Training

  • Special Training for Gamma Knife Perfexion, 2007
  • Pediatric Radiation Oncology Rotation at St. Jude, Memphis, Tenn., 2005

Professional Highlights

  • Radiological Society of North America Roentgen Resident/Fellow Research Award, 2006
  • Radiation Therapy Oncology Group Travel Award, 2006
  • Board-certified in radiation oncology


  • Radiation Oncology

Specialty Interests

Brain tumor, gamma knife

Awards & Honors

  • Radiological Society of North America Roentgen Resident/Fellow Research Award, 2006
  • Radiation Therapy Oncology Group Travel Award, 2006


  • American Society for Therapeutic Radiology and Oncology
  • Radiological Society of North America
  • International Stereotactic Radiosurgery Society
  • Society for Neuro-oncology
Research & Publications

Research & Publications

See publications for Samuel Chao, 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 9/20/2020, Dr. Chao has reported no financial relationship with industry that is applicable to this listing. 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

101 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 4.8

24 Patient Comments

Reviewed on Sep 3, 2020

doc abraham is amazing!!!

Reviewed on Aug 17, 2020

Dr. Chao answered all my questions. He is very professional and enjoyable to talk wiith.

Reviewed on Aug 10, 2020

Dr. Chao provides interested, genuine, calming care.

Reviewed on Jul 31, 2020

We are looking forward to having Dr.Chao's continued advice about next steps as we all work together with OSU's Dr. Giglio.

Reviewed on Jul 8, 2020

Dr. Chao and his staff were excellent and put me at ease for any fears I had in going into having the mask made for my radiation treatments.

Reviewed on Jun 22, 2020

Dr Chao is outstanding

Reviewed on May 21, 2020

Dr. Chao is caring and professional

Reviewed on May 18, 2020

Dr. Chao has always been very pleasant and honest with me.

Reviewed on May 11, 2020

Dr. Chao exhibits a high amount of professionalism and encourages questions/concerns.

Reviewed on May 1, 2020

Virtual phone visit with each doctor before my visit was very good to know them before coming to Cleveland.

Reviewed on May 1, 2020

Everyone here including staff, administrators, technicians, nurses, & doctors are the very definition of Medical Care Givers. They all smile, greet, explain, and genuinely care about all who come in the doors Cleveland Clinic, including patients.

Reviewed on Mar 16, 2020

I came to Cleveland clinic because my family is here. I am blessed to be in the care of the most wonderful care team at Cleveland Clinic. from the schedulers the nurses doctors and yes even those you see in the hallway your team is comforting and truly CARE GIVING just when someone finds themselves at their most vulnerable. GOD BLESS

Reviewed on Mar 10, 2020

Dr. Chao is kind and professional! He explains everything in detail and showed great care when escorting me to and from the gamma knife treatment area. Thank you for everything!

Reviewed on Mar 4, 2020

Dr Chao was wondeful.

Reviewed on Jan 24, 2020

Dr Chao and his team are excellent! they are compassionate, kind and extremely knowledgeable! I highly recommend them!

Reviewed on Jan 24, 2020

dr chao and dr Stevens always take the time to make sure all of my questions are answered

Reviewed on Jan 10, 2020

Dr Choa is easy to talk to and personable. I enjoyed speaking with him.

Reviewed on Dec 9, 2019

Dr Chao is passionate, intelligent and very caring.

Reviewed on Nov 25, 2019

Dr. Chao was very patient and thorough. His knowledge was extremely helpful. Our meeting with him was excellent! Thank you all so much!

Reviewed on Nov 25, 2019

I would highly recommend Dr. Chao and his associates!

Reviewed on Nov 8, 2019

We did not rushed at all talking to Dr Chao. He was very patient answering all our questions.

Reviewed on Oct 29, 2019

dr. chao is the best. always makes time. I have all confidence in him.

Reviewed on Oct 28, 2019

Dr. Chao and the associated P.A. and other staff were great.

Reviewed on Oct 1, 2019

The team provided both excellent communication about the procedure and what to expect. My questions were all answered and my mind put at ease. Extremely and pleasantly surprised by the Dr. Chao's presence both before and after the procedure was done. There are not enough adjectives to describe how at ease I felt both before and after the procedure was done.

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