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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, MBA.

(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 3/22/2024, Dr. Hamaty 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

256 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 4.7
Courtesy, Respect & Concern 4.8
Patient Rating of Doctor 4.7

43 Patient Comments

Reviewed on Apr 26, 2024

They were able to fit me in sooner to see Dr Hamaty on a video visit, as I was having blood sugar issues after surgery. I really appreciated the ability to meet him and have my medications adjusted.

Reviewed on Apr 26, 2024

Dr Hamaty's "bedside manner" is superb. He is easy to talk to, patient and takes his time answering all my questions. He even called himself to respond to a call to the office. I would wholeheartedly recommend him.

Reviewed on Apr 16, 2024

Dr. Hamaty is one of my favorite doctors! His calm demeanor and gentle explanations are very reassuring. I trust his opinion, and I am following his advice.

Reviewed on Apr 12, 2024

Great doctor. I wish I didn't have to wait three months to get the FNB I need. After looking into this one was offered 12 days earlier but I had a conflict on that day and that slightly earlier date wasn't enough for me to change plans.

Reviewed on Apr 5, 2024

It was obvious to me the Dr. didnt have time.

Reviewed on Apr 3, 2024

Very hard to get appointments with Dr Hamaty.

Reviewed on Mar 14, 2024

Like Dr Hamaty's professionalism good Doctor

Reviewed on Feb 16, 2024

Dr. Hamaty Is way to popular. He must be doing something right. You have to get a virtual visit 4 months in advance and 6 months for personal eye to eye visit. I'm kidding of course.I feel fortunate to have him helping me. Phil

Reviewed on Feb 16, 2024

Your last question (recommending) most of my family and friends think I'm nuts to travel so far for my health professionals. I've got U of M Hospital and the Henry Ford within 20 miles. I'm going to keep driving the 330 mi. Round trip to have the Dr.s I have it's worth it to me I Used the U of M for 4 yrs and switched, Not At All Sorry!!

Reviewed on Feb 16, 2024

I prefer the face to face but I don't like the drive, I do it because I know it's best for me, putting up with the last ten miles of the drive Is a pain In the Ass. The video visits are second best but Dr. Hamaty gets the blood work he needs done near my home and I believe he's OK with it so I feel OK and it does save me the drive.

Reviewed on Feb 13, 2024

A friend recommended Dr. Hamaty to me based on her experiences with him for a different medical issue. I felt very comfortable with this first appointment with Dr. Hamaty. The doctor answered all my questions and did not make me feel rushed during the entire appointment and especially when I was making the decision regarding treatment. He also assured me that I could change my mind at any time.

Reviewed on Feb 2, 2024

It was easy. Dr did screen share so I could see test results. All questions were answered.

Reviewed on Jan 11, 2024

Dr Hamity is a very kind and caring person.

Reviewed on Jan 10, 2024

Dr Hamaty is a true professional who is kind ,honest and truthful !

Reviewed on Dec 8, 2023

Dr Hamaty was very helpful in explaining my concerns about my condition.

Reviewed on Dec 6, 2023

Excellent doctor. He focused on my and provided referral for problem unrelated to my visit. Dr. Hamatty provides excellent and attentive care.

Reviewed on Dec 1, 2023

I appreciated the availability of being able to contact my dr as needed.

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 10, 2023

I am happy with the care I have received from Dr. Hamaty. He is always patient with questions and answers thoughtfully. I would recommend him wholeheartedly.

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.

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