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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 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 11/5/2020, 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

282 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

60 Patient Comments

Reviewed on Jul 30, 2021

Dr. Skugor is always caring and professional.

Reviewed on Jul 29, 2021

Dr. Skugor is very caring and personal. He practices active listening and is solution focused. Dr. Skugor is always open to adjust my medication and treatment care to address my symptoms with the goal of helping me to feel better. Thank you dr. Skugor.

Reviewed on Jul 27, 2021

Dr. Mario Skugor is very professional, and my virtual visit with him was great.

Reviewed on Jul 27, 2021

Very good experience with Dr. Skugor.

Reviewed on Jul 27, 2021

Great visit with Dr. Skugor.

Reviewed on Jul 26, 2021

Dr Skugor is very gracious and accessible. Am certain sees a number of patients but yet makes one feel their time is relevant and needs his particular expertise to help them get better. He readily dispenses his help.

Reviewed on Jun 30, 2021

Dr. Skugor is amazing

Reviewed on Jun 23, 2021

Dr Skugor is the best doctor I have ever had..I have been going to him for 21 years

Reviewed on Jun 23, 2021

Again Dr Skugor is the best

Reviewed on Jun 23, 2021

Dr. Skugor was beyond expectations. Very professional and uplifting which was truly appreciated considering the test results might involve cancer. Interacted with a family member which also was appreciated. Great doctor!!!

Reviewed on Jun 17, 2021

Dr. Skugor is an excellent provider and wonderful bedside manner. I am a nurse and I do my research when choosing a provider. I travel 5 hours to see this physician and he is well worth my time and travel for the care he provides. Top notch!

Reviewed on Jun 16, 2021

he is a very good doctor

Reviewed on Jun 15, 2021

Dr went out of his way to check further information and respond promptly as promised.

Reviewed on Jun 14, 2021

Dr Skugor is the best doctor. I've been his patient for many years

Reviewed on Jun 10, 2021

Dr. Skugor is the best

Reviewed on Jun 10, 2021

I enjoy seeing Dr. Skugor He knows my health history

Reviewed on Jun 8, 2021

I always have a good (GREAT) experience with Dr. Skugor.

Reviewed on Jun 7, 2021

The Dr. appointment 2as very pleasant.

Reviewed on May 25, 2021

dr Skugor is the beat doctor ever.

Reviewed on May 25, 2021

dr Skugor is so intelligent and provides excellent care

Reviewed on May 21, 2021

I appreciated Dr. Skugors input on general hypoglycemic concerns and expectations. he reassured me and gave sound feedback.

Reviewed on May 19, 2021

This doctor is an expert and I appreciate his care. I recommend he receive a raise or at least a bonus.

Reviewed on May 18, 2021

Fast, easy and no stress to schedule an appointment. Dr Skugor is very knowledgeable, personable, easy to relate to and easy to communicate with! My Chart messages are answered almost immediately with actual responses by the Dr addressing the subject. All around a class act!

Reviewed on May 17, 2021

It is always a pleasure to see Dr. Skugor.

Reviewed on May 12, 2021

My experience has always been wonderful with Dr Skugor, in all areas of ccf. Thank you.

Reviewed on Apr 16, 2021

The Dr. was great!

Reviewed on Apr 14, 2021

Dr. Skugor has always been very good about answering any questions and his nurses very helpful when I have needed to call his office. Would enthusiastically recommend Dr.Skugor.

Reviewed on Apr 6, 2021

Dr. Skugor is wonderful. I have recommended him to family members.

Reviewed on Apr 5, 2021

Dr. Skugor is an excellent physician. I highly recommend him to others when looking for an endocrinologist.

Reviewed on Apr 1, 2021

Dr S alway vey nice! He also explains what's going on

Reviewed on Mar 30, 2021

I had a great visit with Dr. Skugor as usual. He's always very attentive and willing to try whatever we can to ensure I feel as good as I possibly can with only half a thyroid. He is willing to make adjustments to my medication when needed and that's very important to me.

Reviewed on Mar 30, 2021

Dr. Skugor is a great doctor and I would highly recommend him.

Reviewed on Mar 30, 2021

For me this is my only option since I live in Florida. I really appreciate having this service available because that means I can receive quality care from an excellent physician without having to travel such a great distance for an in-patient visit.

Reviewed on Mar 30, 2021

This the second video appointment I've had with a CCF physician, this one took place without any complications. So, I was happy about that.

Reviewed on Mar 25, 2021

Dr. Skugar was very informative. He was attentive to thyroid issues. I've just started a new medication, I understand I will be following up with bloodwork.

Reviewed on Mar 22, 2021

Dr. Skugor seemed more like a friend that a person would confide in than a person who deals with many different patients. He is AWESOME!

Reviewed on Mar 22, 2021

Dr Skugor is great and I do recommend him often

Reviewed on Mar 11, 2021

Dr. Skugar was wonderful. I felt confident is his recommendations

Reviewed on Mar 2, 2021

Dr Skugor has ALWAYS had a wonderful staff to work with and he is a joy to have as my doctor...... very direct with questions about how I am feeling and my lab results. He listened to my questions as well!

Reviewed on Feb 23, 2021

Dr. Skugor is very easy to understand. He explains himself very well. He is very understanding and caring. I believe between Dr. Skugor and the Functional Medicine dept all my health issues will be addressed and taken care of. I am looking forward to working with him in the future.

Reviewed on Feb 15, 2021

Dr. Skugor is very helpful and concerned about my health.

Reviewed on Feb 9, 2021

I felt very rushed and Dr didn't seem concerned about my major complaint

Reviewed on Jan 29, 2021

Dr. Skugar is the best.

Reviewed on Jan 22, 2021

Good quick visit virtually set up and was able to save a 3 hour drive for a first consult visit. Now to see how to proceed after doctor sees history of lab results.

Reviewed on Jan 5, 2021

I am very happy with Dr Skugor and would definitely recommend him to anyone!

Reviewed on Dec 30, 2020

Highly recommended physician referred to me by past Endo physician and several former colleagues in various positions at the Clinic.

Reviewed on Dec 8, 2020

it was easy to make an appointment with this wonderful doctor.

Reviewed on Dec 8, 2020

This doctor is particularly skilled on treating people with concern and with the best understanding of my condition.

Reviewed on Dec 8, 2020

My experience with Dr. Skugor was extremely good.

Reviewed on Nov 27, 2020

The doctor was engaging informative and enthusiastic

Reviewed on Nov 18, 2020

Very knowledgeable, excellent patient rapport, very experienced, a great deal of expertise in thyroid matters. Very attuned to patient communications. My favorite provider. Smart and kind.

Reviewed on Nov 6, 2020

Got in quickly when I couldn't see my normal doctor for months. I've seen him before and glad I was able to see him in a timely manner. He was great.

Reviewed on Oct 30, 2020

my experience at dr office was very pleasant and comfortable all the way around from checking in, doctors assistant and the doctor himself.

Reviewed on Oct 26, 2020

The physician was excellent and made eye contact; seemingly an uncommon occurrence these days.

Reviewed on Oct 22, 2020

My appointment for a thyroid biopsy with Dr. Skugor was on 10/22/2020 and he got back to me already with my results today, 10/26/2020! And it was good news! Thank you!

Reviewed on Oct 22, 2020

This was the first time I met Dr. Skugor and he was wonderful! Very informative and very caring!

Reviewed on Oct 22, 2020

I live in Erie, PA but I always go to Cleveland Clinic for any condition that comes up that could be more serious. I trust the doctors at Cleveland Clinic completely!

Reviewed on Oct 12, 2020

Dr Skugor came in on his day off to see me .I had other Clinic appointments and drove 9 hours to make them.I asked Dr Skugor what was possible and he said he would see me.That is one of the many reasons I come to the Clinic

Reviewed on Oct 8, 2020

he's amazing. I've been seeing Dr. Skugor for over 10 years.

Reviewed on Oct 7, 2020

Dr Skugar explained the procedure, discussed the results, and answered all my questions.

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