alert icon Construction + COVID Info

Coming to a Cleveland Clinic location?
Cole Eye entrance closing
Visitation, mask requirements and COVID-19 information

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 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 +


Is Cleveland Clinic Part of Your Insurance?

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

View All Plans

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
Zagreb, Croatia

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 11/19/2022, 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

174 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
4.9 out of 5
Explains 4.9
Courtesy, Respect & Concern 4.9
Patient Rating of Doctor 4.9

38 Patient Comments

Reviewed on Nov 9, 2022

Dr. Skugor is always respectful, thorough and communicative.

Reviewed on Oct 28, 2022

Dr. Skugor was timely.

Reviewed on Oct 26, 2022

Dr. Skugor has an excellent "bedside manner" and is exceptionally good at empathy and listening.

Reviewed on Oct 25, 2022

As said on previous page, Dr. Skugor is excellent. I have been with him for about 10-15 years and he is the best!!

Reviewed on Oct 25, 2022

My device did not work with the video setup. Ease of care depends on getting through to office by phone for appts, etc. Dr. Skugor is great about returning emails and that is usually my first step when I have questions.

Reviewed on Sep 22, 2022

Excellent experience with a great Doctor

Reviewed on Sep 12, 2022

The doctor was excellent

Reviewed on Aug 30, 2022

Dr Skugor has been very helpful and available to me throughout my illness.

Reviewed on Aug 30, 2022

Dr. Skogur always explores options together with me...I like being a voice in my treatment.

Reviewed on Aug 30, 2022

I believe Dr Skogur to be an exceptional provider. He is one of the most accessible physicians I've had

Reviewed on Aug 19, 2022

Dr. Skugor is great doctor that you feel he really care about you and not treat you as. Number

Reviewed on Aug 18, 2022

My doctor has made me feel like I'm a person and not just a patient. Thank you!!! Means so much

Reviewed on Jun 15, 2022

Just LOVE Dr. Skugor! He provides top notch care with a super personality and a great sense of humor!

Reviewed on Jun 10, 2022

No Dr. Sugar, took the time to explain what test he would be doing, and let me know he would call when the results were back.

Reviewed on Jun 10, 2022

Dr. Skugor, was very attentive and willing to answer any questions!!

Reviewed on Jun 8, 2022

Dr. Skugor continues to be a excellent provider.

Reviewed on May 26, 2022

Dr 's always advise me for appt. , which facilitates future appt.

Reviewed on May 26, 2022

Dr Skugor assessed my thyroid and explained the US. He said I could recheck in 12 or 24 mo. I chose 24 mo. Dr Skugor he would contact me in 18 mo to schedule appt. He added that if any problem or concern to contact him and he would see me sooner. I appreciate that.

Reviewed on May 19, 2022

Excellent provider.

Reviewed on May 18, 2022

Mr. Skugar is a wonderful endocrinologist. He listens and gives great advice. I couldn't ask for a better Doctor. His staff takes great care of me

Reviewed on May 4, 2022

Dr. Mario Skugor is amazing, I'd follow him anywhere including if he ever leave the clinic. He has been nothing short of amazing since I was diagnosed with Thyroid Cancer almost 20 years ago. He gives clear instruction, checks in on me if I miss an appointment and has kept me cancer free. He's the best.

Reviewed on Apr 4, 2022

Dr Skugor is the kindest and most compassionate provider. I recommend him to everyone that is looking for an Endocrinologist

Reviewed on Mar 23, 2022

Dr. Skugor is an awesome physician! Both him and the resident I met were kind and easy going. I didn't feel rushed at all and was an overall great appointment

Reviewed on Mar 23, 2022

Dr Skugor has been my Doctor for many years and always exceeds my expectations and instills confidence

Reviewed on Mar 23, 2022

Anyone on need of care would be lucky to have Dr Skugor as their Doc

Reviewed on Mar 22, 2022

Dr. Skugor is a caring guy

Reviewed on Feb 15, 2022

Dr. Skugor is amazing.

Reviewed on Feb 10, 2022

Dr. Skugor is the very best

Reviewed on Feb 10, 2022

Dr Skugor talks to you more as a person than a patient

Reviewed on Jan 21, 2022

My visit with Dr. Skugor went very smoothly and efficiently.

Reviewed on Jan 21, 2022

Dr. Skugor is very knowledgeable, friendly and kind.

Reviewed on Jan 20, 2022

Dr Skuger is a smart, caring and warm person. He is great at explaining things and very careful/thorough in his treatment.

Reviewed on Jan 18, 2022

Great experience. Great physician.

Reviewed on Dec 27, 2021

Dr Skugar and I prefer the early appts. I try to have all my questions and issues ready for him when our time starts. He is a very good listener

Reviewed on Dec 27, 2021

Dr Skugar is an excellent physician specializing in thyroid problems especially for those of us not resenting according to the norms. He believes in listening to patient describ symptoms and prescrib a diagnosis based on provided information. Important for patient to eventually feel good.

Reviewed on Dec 23, 2021

Love dr. Skugor!

Reviewed on Dec 21, 2021

This was my first time meeting Dr Skugor. He was very professional and really listened to me.

Reviewed on Dec 20, 2021

Dr. Skugor is the absolute best!!!! He puts all my concerns to the front and takes time to explain the best options for my diagnosis.

Back to Top