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Department Radiation Oncology
Primary Location Cleveland Clinic Weston Hospital
Type of Doctor Adults Only
Languages English
Surgeon No
Locations
Cleveland Clinic Weston Hospital
Primary Location

Cleveland Clinic Weston Hospital

Appointment:
877.463.2010
Desk:
954.659.5840
Fax:
954.659.5809
Specialties & Treatments

Treatment & Services

  • Adult Neuro-Oncology
  • Biologically Targeted Radiotherapy
  • Body Radiosurgery
  • Brachytherapy
  • Brain Tumor Management
  • Cancer Center
  • Cancer Screening
  • Cancer Supportive Care
  • Clinical Trials
  • Cranial Radiosurgery
  • Esophageal Brachytherapy
  • External Beam Radiotherapy
  • Fractionated Radiotherapy
  • Hyperfractionated Radiation Therapy
  • Image-Guided Radiation Therapy
  • Intensity Modulated Radiation Therapy
  • Lung Stereotactic Body Radiotherapy
  • New Experimental Treatment Technologies
  • Partial Breast Irradiation
  • PET in Tumors
  • Radiation Oncology
  • Radiation Sensitizers
  • Radiation Therapy
  • Radiation Therapy in the Treatment of Breast Cancers
  • Radioimmunotherapy
  • Radiotherapy
  • Stem Cell Transplant
  • Stereotactic Body Radiation Therapy (SBRT)
  • Stereotactic Radiosurgery
View all 29 Treatment & Services +

Specialty in Diseases & Conditions

  • Acoustic Neuroma
  • Adrenal Cancer
  • Adrenal Tumors
  • Adult Brain Tumors
  • Ampullary Cancer
  • Ampullary Carcinoma
  • Anal Cancer
  • Anaplastic Astrocytomas
  • Anaplastic Oligodendrogliomas
  • Anaplastic Thyroid Cancer
  • Angiosarcomas
  • Askin’s Tumors
  • Astrocytoma
  • Benign Brain Tumors
  • Benign Tumors of the Spinal Cord
  • Bile Duct Cancer
  • Bladder Cancer
  • Brain Cancer
  • Brain Lymphoma
  • Brain Metastases
  • Breast Cancer
  • Cancer
  • Cavernous Sinus Tumors
  • Central Nervous System (CNS) Malignancies
  • Cervical Cancer
  • Chest Wall Sarcomas
  • Chordomas
  • Clival Chordomas
  • Colon Cancer
  • Colorectal Cancer
  • Dupuytren's Disease
  • Endometrial Cancer
  • Ependymomas
  • Epithelioid Hemangioendothelioma (EHE)
  • Esophageal Cancer
  • Gallbladder Cancer
  • Gastrointestinal Malignancies
  • Gastrointestinal Stromal Tumors (GIST)
  • Genitourinary Cancers
  • Glioblastoma Multiforme
  • Gynecologic Malignancies
  • Head and Neck Cancer
  • Hemangioblastomas
  • Hematologic Malignancies
  • Heterotopic Ossification
  • Histologic Variants of Bladder Cancer
  • Hodgkin's Disease
  • Hypopharyngeal Cancer
  • Invasive Thyroid Cancer
  • Islet Cell Cancer
  • Kidney Cancer
  • Large Intestine Cancer
  • Laryngeal Cancer
  • Lip and Oral Cavity Cancer
  • Liver Cancer
  • Liver Tumors
  • Lung Cancer
  • Lymphedema
  • Lymphoma
  • Malignant Gliomas
  • Malignant Tumors of the Spinal Cord
  • Medullary Thyroid Carcinoma
  • Melanoma
  • Meningioma
  • Merkel Cell
  • Mesothelioma
  • Metastatic Cancer
  • Minor Salivary Gland Cancer
  • Mouth Cancer
  • Myeloma
  • Nasal Cavity Cancer
  • Nasopharyngeal Cancer
  • Natural Killer (NK) Cell Leukemia
  • Natural Killer Cell Leukemia
  • Natural Killer Cell Lymphoma
  • Non-Clear Cell Kidney Cancer
  • Non-Hodgkin's Lymphoma
  • Ocular Lymphomas
  • Ocular Metastasis
  • Oligodendroglioma
  • Ophthalmic Tumors
  • Oral Cancer
  • Oropharyngeal Cancer
  • Osteosarcoma
  • Ovarian Cancer
  • Pancreatic Cancer
  • Parotid Cancer
  • Parotid Tumors
  • Penile Cancer
  • Pituitary Tumors
  • Plantar Fibroma
  • Plantar Fibromatosis
  • Pleura Cancer
  • Primary Central Nervous System (CNS) Lymphomas
  • Primary Soft Tissue Sarcomas of the Chest Wall
  • Prostate Cancer
  • Radiation Induced Chest Wall Sarcomas
  • Radioactive Iodine Refractory Differentiated Thyroid Cancer (RAIR DTC)
  • Rectal Cancer
  • Recurrent Thyroid Cancer
  • Renal Pelvis Cancer
  • Retinal Hemangioma
  • Retinoblastoma
  • Salivary Gland Cancer
  • Salivary Gland Diseases
  • Sarcoma
  • Sarcomas of the Brain or Head
  • Schwannoma
  • Sinonasal Cancer
  • Sinonasal Tumors
  • Skin Cancer
  • Skull Base Cancer
  • Soft Tissue Sarcoma
  • Spinal Cancer
  • Spinal Metastases
  • Spine Tumors
  • Squamous Cell Carcinoma
  • Stomach Cancer
  • Submandibular Gland Cancer
  • T-Cell Lymphoma
  • Testicular Cancer
  • Thoracic Cancer
  • Thoracic Tumors
  • Thymic Cancer
  • Thymic Tumors
  • Thymoma
  • Thyroid Cancer
  • Thyroid Tumor
  • Transitional Cell Cancer
  • Trigeminal Neuralgia
  • Unknown Origin Cancer
  • Upper Tract Urothelial Carcinomas (UTUC)
  • Ureteral Cancer
  • Urethral Cancer
  • Urinary Cancer
  • Urothelial Cancer
  • Uterine Cancer
  • Uveal Melanoma
  • Vaginal Cancer
  • Vulvar Cancer
View all 140 Specialties +
Insurance

Insurance

Is Cleveland Clinic Florida Part of Your Insurance?

Review a list of accepted insurance plans for our Florida locations or learn more about purchasing a contracted managed care plan.

View All Plans
Education & Professional Highlights

Education & Professional Highlights

Appointed
2014

Education & Fellowships

Fellowship - Cleveland Clinic
Radiation Oncology; Radiosurgery; Thoracic Oncology
Cleveland, OH United States
1998

Residency - Cleveland Clinic
Radiation Oncology
Cleveland, OH
1997

Residency - University Hospitals of Cleveland
Radiation Oncology
Cleveland, OH
1995

Internship - Riverside Methodist Hospital
Internal Medicine; Preliminary Medicine
Columbus, OH
1994

Certifications

  • Radiation Oncology

Specialty Interests

Radiation therapy, head and neck cancer, esophageal cancer, intensity modulated radiation therapy (IMRT), image-guided radiation therapy (IGRT), adaptive radiation therapy, PET-guided therapy, high dose-rate (HDR) brachytherapy, stereotactic body radiation therapy, technical innovation

Innovations & Patents

  • Multichannel, Esophageal Brachytherapy Applicator
    U.S. Provisional, Serial No.: 61/777,671
Research & Publications

Research & Publications

See publications for John Greskovich, Jr., 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 5/1/2024, Dr. Greskovich, Jr. 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

188 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
5 out of 5
Explains 4.9
Courtesy, Respect & Concern 5
Patient Rating of Doctor 5

44 Patient Comments

Reviewed on Aug 30, 2024

Total confidence in Dr. Greskovich and all staff members. I feel fortunate that I am a patient.

Reviewed on Aug 23, 2024

Always a pleasure seeing Dr. Greskovich and his staff. They are extremely pleasant and efficient.

Reviewed on Aug 20, 2024

Dr. Greskovich was wonderful! His responses were on point.

Reviewed on Aug 15, 2024

Dr. Is a good listener,very Concerned with my progress.(good)

Reviewed on Aug 9, 2024

I absolutely love Dr. Greskovich! He always takes the time to explain my test results and sincerely listens to my questions and concerns. He Is so welcoming he's like talking to a well informed family member! I feel blessed to have him as my oncologist

Reviewed on Jul 11, 2024

I've been seeing Dr. Greskovich for about 5 years and he's absolutely the top in his field. All Drs should spend an hour or two with him to learn the art of communication.

Reviewed on Jul 11, 2024

This doctor is a professional and makes you at ease for a very difficult situation. The care he administers to his patient his first class.

Reviewed on Jun 28, 2024

Dr. Greskovich is a very humane and empathic physician. He explains things well and has a very likable demeanor. Despite being the director of the radiation oncology department, he still takes the time to walk every patient to the front door and provides instructions to the receptionist on duty. I feel very luck that I has my cancer treatment in the hands of such a prestigious but down to earth doctor.

Reviewed on Jun 4, 2024

Dr. Greskovich is the the most professional doctor I've ever dealt with. I'm blessed to have him as my treating physician.

Reviewed on Jun 3, 2024

Dr. G is very compassionate and patient.

Reviewed on May 16, 2024

I have been a patient of Dr.or 5 years. He has treated me for Throat Cancer. I am 5 years cancer free, I can swallow without a problem, and I have my taste. I received Worldwide Class Treatment in him the entire time

Reviewed on May 7, 2024

Thank you Dr G!

Reviewed on May 7, 2024

Cleveland Clinic in Ohio, Dr Ku and team and Dr Greskovich in Weston saved my life

Reviewed on May 3, 2024

Dr G is so personable he makes you feel so comfortable

Reviewed on Apr 22, 2024

Dr Greskovicb is honestly the best physician I have ever had as my doctor.

Reviewed on Apr 22, 2024

I do and would highly recommend Dr Greskovich and staff.

Reviewed on Apr 15, 2024

The doctor was friendly, professional and extremely helpful in providing information about all treatment options.

Reviewed on Mar 22, 2024

Dr Greskovic is very professional and caring

Reviewed on Mar 14, 2024

Dr Greskovich and his staff are highly dedicated to their patients well being.

Reviewed on Mar 13, 2024

DOCTOR was great amazing, Staff the whole reason for the doctors visit to get a form signed and the doctor said it will get signed right away his staff is on it but every day since talking to the staff they still did not get it signed I have asked every day now in calls and emails. It has been over 3 business days still nothing. It is basically a signature. This is very upsetting because it is very time sensitive.

Reviewed on Mar 13, 2024

Dr G is excellent. Great patient perspective and communication

Reviewed on Mar 11, 2024

My appointment with Dr. Greskovick was very good and very productive and very helpful and informative.

Reviewed on Mar 11, 2024

I recommend Dr Greskovick very highly, for he's very knowledgeable and professional couldn't ask for better health care Doctor.

Reviewed on Mar 11, 2024

I'm so proud of this doctor and of Cleveland Clinic in general

Reviewed on Mar 7, 2024

As always I had a excellent experience with Dr. Greskovich in spite of the serious nature of my appointment

Reviewed on Mar 4, 2024

Dr. And all personnel very caring and supportive.

Reviewed on Feb 29, 2024

Best doctor at Cleveland clinic by far

Reviewed on Feb 28, 2024

The staff and the doctor are all fantastic. Pleasant, efficient and courteous.

Reviewed on Feb 27, 2024

I had to call to get information that doctor told me I would receive a call from Cleveland Clinic. Also, I did not receive a call that scheduled an appointment. I did however, find it on mychart.

Reviewed on Feb 23, 2024

The exprience was great because person include doctor where very caring

Reviewed on Feb 6, 2024

Everything has always been great with Dr. G and the entire staff!

Reviewed on Feb 6, 2024

Dr. Greskovich was absolutely amazing, smart, direct, excellent bedside manner and a joy to discuss options for treatment. Very comforting.

Reviewed on Jan 29, 2024

Great doctor very friendly and patient.

Reviewed on Jan 22, 2024

Dr. Greskovich is a Champion of Great Medical Care and very supportive!!!

Reviewed on Jan 17, 2024

He is a great doctor

Reviewed on Jan 9, 2024

Dr. G is one of the best radiologist he's always pleasant and he always go above and beyond to make my mom feel very comfortable could not have asked for a better team

Reviewed on Dec 28, 2023

Great doctor

Reviewed on Dec 6, 2023

Dr.G takes time to explain everything and makes me feel extremely comfortable and confident. CC is lucky to have such a talented Dr.

Reviewed on Dec 4, 2023

I like Dr Greskovich. He is positive. You can tell when he talks, he talks with knowledge and experience A total asset to your line up of drs

Reviewed on Dec 1, 2023

I am so happy and pleased that I selected Cleveland Clinic for my care and medical treatment for my doctor Dr G. Is the best and recommend him very highly and I was so fortunate to have him as my primary physician. Thank You Dr G.

Reviewed on Nov 21, 2023

I am so blessed I have Dr. Greskovich as my oncologist. He Is compassionate, a great listener to my questions and my concerns. It's a scary situation having cancer, I feel like he is there for me in every way.

Reviewed on Nov 16, 2023

Dr Greskavich always goes above and beyond any expectations I m have. Answer all questions. Has done this for the last 4 years

Reviewed on Nov 14, 2023

Dr. Greskowitch is so human and he is gifted with such patience. He gives you hope during these trying times.

Reviewed on Nov 8, 2023

Dr. Greskovitch is wonderful. He always listens to my concerns and answers all my questions. I would definitely recommend him.

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