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

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

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

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

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 11/25/2019, Dr. Skugor 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

263 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
Listens 4.8
Courtesy, Respect & Concern 4.9
Knows Medical History 4.8
Patient Rating of Doctor 4.9

39 Patient Comments

Reviewed on Nov 1, 2019

Dr. Skugor is one of the most amazing doctors i've seen. He is easy to talk to, friendly and explains things and gets right to the point! I'm glad i chose him as my doctor!!

Reviewed on Oct 31, 2019

Dr. Skugor is wonderful! He is very personable and easy to talk to. He makes me feel valued as a patient.

Reviewed on Oct 9, 2019

Dr Skugor very nicely double-booked me himself since his schedule was full until the end of November and he thought I should be seen sooner.

Reviewed on Oct 9, 2019

Dr Skugor is the best. Since I live an hour and a half away, he is great about answering email questions. I try not to take advantage of that!

Reviewed on Oct 9, 2019

Dr Skugor is the best and I would definitely recommend him to others.

Reviewed on Oct 9, 2019

The care provider-Dr. Skugor-was excellent.very caring.

Reviewed on Sep 27, 2019

Dr. Skugor is an excellent medical provider

Reviewed on Sep 24, 2019

I have already started recommending Cleveland Clinic to others. I am blessed that I am being treated by the care providers at Cleveland Clinic. Simply put, they are the best!!

Reviewed on Sep 11, 2019

I already recommend Dr.Mario Skugor to family & friends as he explains things

Reviewed on Sep 5, 2019

I arrived early & the wait was 5 minutes. my discussion with Dr. Skugor was informative & helpful.

Reviewed on Sep 4, 2019

I've been seeing Dr. Skugor for 10+ years. Appreciate his expertise.

Reviewed on Jul 30, 2019

Seeing Dr. Skugor is always an exceptionally rewarding experience. He is very thorough, compassionate, and willing to answer any questions that I may have. I consider myself very fortunate to have him as my physician.

Reviewed on May 14, 2019

I can't say enough good things about Dr Skugor!

Reviewed on May 8, 2019

Dr. Skugar is my new favorite doctor.So likable.....knowledgable. Seeing him in September.

Reviewed on May 8, 2019

I have told family and friends about Dr. Skugar!

Reviewed on May 8, 2019

Dr. Skugor is like meeting up with an old friend. He spoke to my child and I as if we were personal friends and he genuinely cares about our lives. I never have any kind of anxiety when I see him for my annual visit. My condition is controlled and Dr. Skugor never treats me as if this condition is unimportant.

Reviewed on May 8, 2019

Dr Skugor is an amazing physician!!!! He is a Professor @ CWRU & @ CCF & travels in various countries to give presentations, yet he always has time for me!!!! He has been my Endocrinologist for about 12 yrs., & he has not changed at all. He will often say, "Could you stop by tomorrow to see me, say around 8:30." I am not in good health, so I have many doctors @ the CCF, & he is by far the best I have, because he makes me feel as if I were his only patient. My name can be used for this review.

Reviewed on May 8, 2019

Dr always takes me earlier than my appointment time.

Reviewed on May 7, 2019

very efficient practice. Dr Skugor is very congenial, knowledgeable, and approachable. Willing to listen!!! Valiet parking a huge help when arriving for appt. BP soars when sprinting the length of building and up to second floor. Our appt was 9:00am. Only downside is the 4 hr trip from Lansing Mi. Here there are NO competent thyroid physicians!!! Please thank Dr Skugor.

Reviewed on Apr 18, 2019

the doctor takes time to explain everything about medication adjustments with my condition

Reviewed on Apr 10, 2019

Best doctor I have seen ever.

Reviewed on Apr 4, 2019

Dr. Skugor is a complete professional, very accommodating, sincerely interested in, and dedicated to the care of his patients. I would recommend him unhesitatingly to anyone in need of an endocrinologist.

Reviewed on Apr 3, 2019

I LOVE DR. SKUGOR! I feel very privileged to be his patient

Reviewed on Mar 25, 2019

Excellent communication / clear and concise treatment recommendation. Detailed follow up by Physician.

Reviewed on Mar 4, 2019

doctor was on schedule, kind, patient and willing to try alternate options of treatment to invoke better results.

Reviewed on Mar 4, 2019

LOVED Dr. Skugor!!!!

Reviewed on Mar 4, 2019

Dr.Skugor is very pleasant and answers all my questions to my understanding. I highly recommend him.

Reviewed on Feb 18, 2019

the doctor to patient connection is great. time to talk ,not in a hurry.

Reviewed on Feb 18, 2019

excellent doctor, listens

Reviewed on Feb 12, 2019

Dr. Skugor was great, quick to respond on MyChart, personable, and answered all of my questions.

Reviewed on Feb 5, 2019

Dr. Skugor is wonderful! He is caring, kind and always professional. Plus he always makes me laugh!!

Reviewed on Jan 24, 2019

Dr Skugor is very personable and does a great job of explaining things.

Reviewed on Jan 23, 2019

Dr Skugor is a wonderful and caring doctor.

Reviewed on Jan 16, 2019

my appt with Dr. Skugor was last Wednesday. I have not heard anything from Dr. Skugor or any staff member about my blood work results and med. doses changes. I email Dr. Skygor last Friday. I expected some response by now!

Reviewed on Jan 10, 2019

This provider does not listen to his patient, often cutting me off and attempting to answer the question before I'I've been able to finish asking. He is so caught up in following the "guidelines" he fails to take into account the patient sitting right in front of him. Further, there have been multiple occasions in which he will chart examination/assessment data in my chart, without ever performing the examination/assessment. I discussed my concern regarding this matter during this visit and he did this exact thing in my chart regarding this visit. I know this because another provider reviewed my chart with me at another appointment later in the same day. That provider was shocked at what she was reading.I have never attended any of my appointments with this provider alone so I have a witness to the lack of assessment. He never even touches me, simply walks in the door, sits down at the computer, and copies and pastes the same old data again and again.

Reviewed on Jan 10, 2019

The staff and other physicians in this practice are amazing, it is only this one physician who seems to have lost the desire and ability to listen and provide quality care to patients. The organization's motto is "Patients First" and short of the Doctor, everyone I've come in contact with, in over 15 months of cancer care, have been fantastic.

Reviewed on Jan 9, 2019

My appointment was an annual follow up. Dr. Skrugor is always pleasant and enjoyable during these appointments. I'm glad I'm not really ill but Dr. Skruger's attention to me is indicative to how he'd treat quite ill patients.

Reviewed on Jan 8, 2019

Mario Skugor is the best doctor. he's a great listener. he gets to know his patients well. he communicates promptly and intelligently. am always able to share my concerns. and we work together collaboratively to solve them.

Reviewed on Dec 13, 2018

very good experience with Doctor Scugar

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