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Department Endocrinology, Diabetes and Metabolism
Primary Location Cleveland Clinic Main Campus
Type of Doctor Adults Only
Languages Croatian, English
Surgeon No
Cleveland Clinic Main Campus
Primary Location

Cleveland Clinic Main Campus

Specialties & Treatments

Treatment & Services

  • Blood Tests
  • Diabetes Center
  • General Endocrinology
  • Radioactive Iodine Treatment
  • Thyroid Aspiration
  • Thyroid Ultrasound
  • Thyroid Ultrasound and Biopsy
View all 7 Treatment & Services +

Specialty in Diseases & Conditions

  • Addison's Disease
  • Adrenal Disorders
  • Androgen Deficiency (Low Testosterone)
  • Bone Disorders
  • Calcium Disorders
  • Diabetes
  • Diabetes, Gestational
  • Erectile Dysfunction
  • Familial Multiple Endocrine Neoplasia
  • Goiter
  • Gynecomastia
  • High Cholesterol
  • Hirsutism
  • Hyperthyroidism
  • Hypothyroidism
  • Klinefelter Syndrome
  • Metabolic Syndrome
  • Neuropathy - Diabetic
  • Obesity
  • Osteopenia
  • Osteoporosis
  • Parathyroid Cancer
  • Parathyroid Disease
  • Pheochromocytoma
  • Pituitary Disorders
  • Pituitary Tumors
  • Prolactinoma
  • Sexual Hormone Disorders
  • Thyroid and Pregnancy
  • Thyroid Cancer
  • Thyroid Disease
  • Thyroid Nodule
  • Vitamin D Deficiency
View all 33 Specialties +


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About Mario Skugor, MD

Mario Skugor, MD, FACE, has been on Staff at Cleveland Clinic since 2002. He is board-certified in internal medicine and endocrinology, diabetes and metabolism.

 His clinical interests include thyroid disorders, disorders of calcium metabolism, metabolic bone disease and obesity. His practice is not limited to these diseases but also include diabetes mellitus and adrenal and pituitary disorders.

 He is also involved in teaching and training of medical students, residents and fellows.

Education & Professional Highlights

Education & Professional Highlights


Education & Fellowships

Fellowship - Cleveland Clinic
Endo, Diabetes and Metabolism
Cleveland, OH

Residency - Saint Vincent Charity Medical Center
Internal Medicine
Cleveland, OH

Residency - Saint Luke's Medical Center
Internal Medicine
Cleveland, OH

Internship - Saint Luke's Medical Center
Internal Medicine
Cleveland, OH

Medical Education - University of Zagreb School of Medicine

Additional Training

  • American Association of Clinical Endocrinologists
  • American Thyroid Association
  • Endocrine Society

Professional Highlights

  • Co-Director, Endocrinology and Reproductive Organ Block, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, 2005-Present
  • President, Ohio River Regional Chapter, American Association of Clinical Endocrinologists, 2007-2008
  • Member, Task Force for Thyroid Ultrasound Testing and Certification, American Association of Clinical Endocrinologists, 2007-Present


  • Internal Medicine - Endocrinology, Diabetes and Metabolism

Specialty Interests

Hypothyroidism, hyperthyroidism, thyroid nodules, goiters, thyroid carcinoma, diabetes mellitus, hypercalcemia, hypocalcemia, osteoporosis, hyperlipidemia

Awards & Honors

  • Skeletal assessment by FELS method, FELS Institute, Yellow Springs, Ohio, 1993
  • Thyroid ultrasound and fine needle biopsy training course, Cleveland Clinic, 2001
     in teaching and training of medical students, residents and fellows.


  • Pfizer Scholars in Endocrinology Award, Oregon Health Sciences University
  • Research findings selected by Program Directors at National Center for Research Resources to represent one of the most scientifically important advances published by investigators in 1997 and 1998
Research & Publications

Research & Publications

See publications for Mario Skugor, 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 4/30/2024, Dr. Skugor 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

328 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 4.7

60 Patient Comments

Reviewed on May 28, 2024

Dr. Skugor is extremely knowledgeable, thoughtful and has exceptional bedside manner.

Reviewed on May 16, 2024

Dr. Skugor/Endocrinology is a very thorough and excellent provider.

Reviewed on May 15, 2024

Very pleased with doctor

Reviewed on May 9, 2024

Dr Skugor was great! He explains everything thoroughly and is very clear explaining my plan of care.

Reviewed on May 8, 2024

Dr. Skugor was very informative and explained my concerns. He was very patient. I was very satisfied.

Reviewed on Apr 24, 2024

Verycaring Dr.answered all my questions.impressed!

Reviewed on Apr 12, 2024

Dr. Skugor is great. He is honest, and helpful. Skugor goes above and beyond. I truly appreciate him.

Reviewed on Apr 4, 2024

Good, Dr. Skugor ask question, and he always make sure I get my medicine on time.

Reviewed on Apr 3, 2024

Doctor is very knowledgeable. I love Cleveland Clinic

Reviewed on Apr 2, 2024

Excellent Doctor

Reviewed on Apr 2, 2024

Dr. Skugor is a very responsive doctor. He Is fabulous, I have been In his care for ten years. I appreciate his candor and his office staff is great.

Reviewed on Mar 15, 2024

I have received EXCELLENT care and responsiveness from Dr. Skugor.

Reviewed on Mar 14, 2024

Dr Skugor really appears to be listening and has a professional and approachable demeanor. He sets a high bar and I appreciate his answers to my many questions - I feel heard and listened too.

Reviewed on Mar 12, 2024

He's the best!

Reviewed on Mar 8, 2024

Dr. Skugor took time to answer my questions. He also described in a reassuring way his plan for continuing to care for my disease.

Reviewed on Mar 7, 2024

I obtained clear instructions re: whether to have surgery vs active surveillance based on pending biopsy results. Results arrived a few days after 3/7 and Dr. Skugor responded quickly. Therefore, I was able to avoid an unwanted surgery.I am very relieved!

Reviewed on Mar 5, 2024

Thanks Dr. Skuger for his oitstanding care!

Reviewed on Mar 1, 2024

Dr. Skugor is the vey best!!!

Reviewed on Feb 28, 2024

Best hospital and doctor I've ever been to. Everyone was so polite and helpful the minute I walked into the hospital and doctors office. Thank you all so much for making so comfortable!

Reviewed on Feb 28, 2024

I was nervous going into my appointment and came out smiling :) the nurse and especially the doc were absolutely amazing! Thank you all so much!!!!

Reviewed on Feb 16, 2024

Dr Skugor is an excellent physician with an friendly bedside manner who puts you at ease and explains things plainly.

Reviewed on Feb 14, 2024

Dr Skugor is great

Reviewed on Feb 13, 2024

Dr. Skugor was concerned and professional.

Reviewed on Feb 13, 2024

Dr. Skugor is a wonderful doctor; I actually have referred several friends to him. I'm very happy with my choice in switching to him years ago. He always shows he cares and understands what I'm going through, and is thoughtful in making recommendations for my care.

Reviewed on Jan 9, 2024

I love dr Skugor's approach! He is very tuned in to what is important to me

Reviewed on Jan 9, 2024

I am delighted with the care provided by Dr. Skugor. He's a wonderful person.

Reviewed on Jan 8, 2024

Dr Skugar never makes me feel rushed and listens with genuine concern of my well being and health

Reviewed on Jan 2, 2024

Dr Skugor is always attentive, kind and realistic in his reasoning and treatment.

Reviewed on Dec 27, 2023

Dr. Skugor is an amazing physician who cares for his patients.

Reviewed on Dec 22, 2023

Dr Skugor is the best!

Reviewed on Dec 14, 2023

Dr. Skugor is an excellent provider.

Reviewed on Dec 13, 2023

I would ABSOLUTELY recommend Dr. Skugor. I had a great interaction with him regarding my condition and he was able to explain it to me without being condescending and he explained everything so well I did it have to ask that many follow up questions.

Reviewed on Dec 12, 2023

Dr. Skugor is an excellent physician. He is encouraging and does not hesitate to congratulate you for progress made.

Reviewed on Dec 8, 2023

Great communication with Doctor

Reviewed on Dec 7, 2023

I always enjoy talking with Dr. Skugor

Reviewed on Dec 6, 2023

Dr Skugor is the best

Reviewed on Dec 5, 2023

Great doctor

Reviewed on Dec 5, 2023

Dr. Skugor is excellent.

Reviewed on Nov 29, 2023

Dr. Skugor is excellent and I am very thankful and fortunate to be his patient.

Reviewed on Nov 28, 2023

Dr. Skugor has been my endocrinologist for more than 10 years. He always answers my questions. His treatment plan is based on how I "feel" and not my lab numbers.

Reviewed on Nov 28, 2023

I didn't deal with any person except Dr. Skugor.

Reviewed on Oct 26, 2023

Dr Skugor is THE Best! He listens to you and your worries and figures out how to make things better. His personality is awesome and he is so easy to talk to. I'm so glad he is my doctor now.

Reviewed on Oct 24, 2023

Best doctor , for me. He keeps me healthy and answers my questions . I've been his patient for years.

Reviewed on Oct 24, 2023

Dr. Skugor was one of the best care providers I have seen in a very long time. It was a fantastic appointment.

Reviewed on Oct 18, 2023

I have recommended Dr. Skugor to friends. He is great.

Reviewed on Oct 18, 2023

Dr Skugor always does a great job....he takes the time to answer questions and explain in a way that makes sense to me. It is obvious that he cares about you as a patient. Dr Skugor Is one of the reasons I continue to stay at the Cleveland Clinic for my care.

Reviewed on Sep 28, 2023

Dr Skugor by far has been the best endocrinologist I ever had. He's caring, funny and engaging. He truly responds with H.E.A.R.T.

Reviewed on Sep 27, 2023

Dr. Skugord makes sure I can get in. I'm in retail and flexibility is key

Reviewed on Sep 27, 2023

When I first came to Cleveland Clinic I had a bad experience with my previous endocrinologist so Dr. Mario Skugord was a God send.

Reviewed on Sep 26, 2023

The doctor is very skilled and has excellent bedside manner.

Reviewed on Sep 25, 2023

Dr Skugar listened to my concerns and was very helpful in providing solutions

Reviewed on Sep 22, 2023

It was a good experience. Had trouble with the sound at first but Dr got things going.

Reviewed on Sep 8, 2023

Very kind Doctor

Reviewed on Aug 16, 2023

Dr. Skugor is always a pleasure to meet with and makes me feel at ease and as if I can always ask questions or raise concerns.

Reviewed on Aug 10, 2023

I have recommended Dr. Skugor to others.

Reviewed on Aug 10, 2023

Always a great appt. With Dr. Skugor! He's very kind & professional!

Reviewed on Aug 2, 2023

Very good doctor..

Reviewed on Aug 1, 2023

I am so throlled he is my Dr. He informs, he listens & he is a real human being with his honesty, humor & caring about me suffering,

Reviewed on Jun 29, 2023

Dr. Skugor is the best! He very personable, knowledgeable and so easy to talk to.

Reviewed on Jun 29, 2023

I reccomend Dr. Skugor to my daughter. She is now a patient of his.

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