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Department Endocrinology, Diabetes and Metabolism
Primary Location Avon Hospital
Type of Doctor Adults Only
Languages English
Surgeon No
Avon Hospital
Primary Location

Avon Hospital

Specialties & Treatments

Treatment & Services

  • Blood Tests
  • Bone Density Testing
  • Diabetes Center
  • Kidney Stones: Oxalate-Controlled Diet
View all 4 Treatment & Services +

Specialty in Diseases & Conditions

  • Acromegaly
  • Addison's Disease
  • Adrenal Disorders
  • Adrenal Tumors
  • Androgen Deficiency (Low Testosterone)
  • Androgen Excess
  • Beta-Cell Disorders
  • Bone Disorders
  • Calcium Disorders
  • Carcinoid Syndrome
  • Conn's Syndrome
  • Cushing's Syndrome
  • Diabetes
  • Diabetes, Gestational
  • Endocrine Disorders
  • Familial Multiple Endocrine Neoplasia
  • Galactorrhea
  • Goiter
  • Growth Hormone Excess
  • Gynecomastia
  • High Cholesterol
  • Hirsutism
  • Hyperaldosteronism
  • Hyperandrogenism
  • Hypercalcemia
  • Hyperparathyroidism
  • Hyperprolactinemia
  • Hyperthyroidism
  • Hypertriglyceridemia
  • Hypocalcemia
  • Hypogonadism
  • Hypoparathyroidism
  • Hypopituitarism
  • Hypothyroidism
  • Klinefelter Syndrome
  • Menopause
  • Menopause, Male
  • Metabolic Syndrome
  • Obesity
  • Osteopenia
  • Osteoporosis
  • Panhypopituitarism
  • Parathyroid Cancer
  • Parathyroid Disease
  • Pheochromocytoma
  • Pituitary Disorders
  • Pituitary Stalk Lesions
  • Pituitary Tumors
  • Polycystic Ovary Syndrome
  • Primary Hyperaldosteronism
  • Prolactin Excess States
  • Prolactinoma
  • Pseudohypoparathyroidism
  • Reactive Hypoglycemia
  • Secondary Hyperparathyroidism
  • Tertiary Hyperparathyroidism
  • Thyroid and Pregnancy
  • Thyroid Cancer
  • Thyroid Disease
  • Thyroid Nodule
View all 60 Specialties +


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Education & Professional Highlights

Education & Professional Highlights


Education & Fellowships

Graduate School - University of St. Thomas
St. Paul, MN USA

Fellowship - Wayne State University-Detroit Medical Center
Detroit, MI USA

Residency - Wayne State University-Detroit Medical Center
Internal Medicine
Detroit, MI USA

Medical Education - Aleppo University Faculty of Medicine


  • Internal Medicine - Endocrinology, Diabetes and Metabolism

Specialty Interests

Diabetes, pre-diabetes, polycystic ovary disease, thyroid disorders, osteoporosis, parathyroid disorders, adrenal disorders, pituitary disorders, male hypogonadism

Research & Publications

Research & Publications

See publications for Marwan Hamaty, 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 10/26/2023, Dr. Hamaty 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

243 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
4.8 out of 5
Explains 4.8
Courtesy, Respect & Concern 4.8
Patient Rating of Doctor 4.8

43 Patient Comments

Reviewed on Nov 10, 2023

Dr. Hamaty listens well and was very good at explaining all the options related to my care.

Reviewed on Nov 10, 2023

Had to actually contact the provider to schedule this visit. Called immediately to schedule a 6 month follow up and no in person visits available.

Reviewed on Nov 9, 2023

Dr. H. Is the most caring and intelligent person on this earth. He's the best!

Reviewed on Oct 24, 2023

Dr. Hamaty listened to my concerns and proposed a change in care and explained in a way that I understood

Reviewed on Oct 24, 2023

Excellent. Patient, kind, connected, organized, perceptive. One of the best doctors I have ever had. I walked out of his office knowing I was in good hands.

Reviewed on Oct 13, 2023

Dr. Hamaty is very thorough. He explains options for treatment.

Reviewed on Oct 11, 2023

Dr. Hamaty is an excellent Dr. He knows his field and interacts well with me. He is thorough in his examination and going over my record by highlighting the info I need to know. He is not glued to the computer screen which encourages me to ask questions. He makes eye contact and answers my questions to my satisfaction. I felt his respect for me as a patient by involving me in decisions re my medications and condition. He answers my emails and orders my tests promptly. He and my PCP are the reasons I stay with Cleveland Clinic. The good ones (Dr. Nyalakonda and Dr. Wadhwa) left.

Reviewed on Oct 6, 2023

Dr Hamaty was very kind and helped me navigate the technical problems of the video visit. He reviewed my test results and further follow up

Reviewed on Sep 26, 2023

I would give 10s to Dr. Hamaty if I could. He follows up, does what he says he will do. You should have him give classes to many other doctors on how to treat patients. I have had the best care with Dr. Hamaty.

Reviewed on Sep 26, 2023

I will definitely recommend Dr Hamaty

Reviewed on Sep 22, 2023

Dr. Hamaty takes the time to listen & included me in on decisions.

Reviewed on Sep 22, 2023

Dr Hamaty took his time with me. He openly allowed me to make my our decision about treatment, and was Non judgmental . Thank You Dr Hamaty.

Reviewed on Sep 21, 2023

Marwan is great. So glad to have him in my corner.

Reviewed on Sep 21, 2023

My impression is that he is an exceptional doctor, was very interested in what I had to say, and explained everything very clearly.

Reviewed on Sep 12, 2023

No complaints with doctor!!!!

Reviewed on Aug 11, 2023

He is a fantastic doctor not only in his knowledge but his concern

Reviewed on Aug 9, 2023

Dr Hamaty was very kind and patient. He listened to me. I hope he will be my ongoing endocrinologist. He explained things very clearly.

Reviewed on Jul 19, 2023

Dr. Hamaty is always very thorough and collaborates very well with me. He always answers all my questions and spends quality time with me. He is prompt in answering any my chart messages. I am so happy to have him as my doctor

Reviewed on Jul 14, 2023

Dr Was very thorough explains everything and answers all questions.

Reviewed on Jun 28, 2023

THis was my first visit with *Dr. Hamaty. He was very professional, polite, courteous, put me at ease, answered all my questions with concern and understanding.

Reviewed on Jun 14, 2023

Dr Hamaty listens to my concerns and provides excellent feedback concerning my health issues

Reviewed on Jun 14, 2023

I absolutely would recommend Dr. Hamaty

Reviewed on Jun 13, 2023

Dr. Hamaty was very thorough, he listened to the concerns I had and I was part of the decision making process for my plan of care.

Reviewed on May 19, 2023

I was having problems managing recent nocturnal low blood sugars. I needed help fast and this was the best available way to get help by video. Dr Hamaty is very patient and insightful and by discussing this issue we developed an effective plan to identify what was going wrong and how best to fix it.

Reviewed on May 16, 2023

The Dr was great, very patient and thorough.

Reviewed on Apr 21, 2023

I really like my Dr and the way he takes time to get to understand me and my medical issues.

Reviewed on Apr 21, 2023

Everything is very good about my doctor and his office!

Reviewed on Apr 18, 2023

Dr. Hamaty was thorough and helpful during my visit. He was very kind and answered all of my questions.

Reviewed on Apr 4, 2023

This was an amazing visit. Sometimes as a patient you just need to be heard and validated. Dr. Hamaty did all those things. He took my concerns seriously, didn't brush them off, and ran the tests and follow up that put my mind at ease. This is my first experience with CCF and I am so pleased!

Reviewed on Mar 24, 2023

Dr. Hamaty has been my endocrinologist for years. He knows me and my history well and has great attention to detail and memory over the years.

Reviewed on Mar 17, 2023

Dr Hamaty is outstanding in how he relates with me and his willingness to try newer meds that I prefer. He is patient and kind. Excellent bedside manners. I have only two other clinic doctors that I rate so highly.

Reviewed on Mar 16, 2023

Dr. Hamaty was most impressive. Took the time to learn of the reason for my visit and events which led me to him. I felt very comfortable with him and confident in his expertise. I feel very lucky to live in an area that has access to world class care.

Reviewed on Mar 9, 2023

Dr. Always answers my questions so I can understand

Reviewed on Feb 8, 2023

I appreciate the time Dr. Hammaty spent on my appointment.

Reviewed on Feb 2, 2023

Dr Hamaty explained everything well

Reviewed on Feb 1, 2023


Reviewed on Feb 1, 2023

*Dr. Hamaty is very thorough - very cautious & caring.

Reviewed on Jan 24, 2023


Reviewed on Dec 20, 2022

Dr Hamaty is outstanding at involving me in an appropriate treatment choice.

Reviewed on Dec 20, 2022

I am truly grateful to have Dr Hamaty as my endocrinologist!

Reviewed on Dec 10, 2022

Excellent physician

Reviewed on Dec 10, 2022

Dr. Visit was very good and the Dr takes time with me to help us understand everything that we are discussing.

Reviewed on Dec 6, 2022

Have always received great care from Dr. Hamaty. He is a great listener and gives gives medical advice based on the test results and his medical judgement.

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