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Department Cardiovascular Medicine
Primary Location Cleveland Clinic Main Campus
Type of Doctor Adults Only
Languages English
Surgeon No
Cleveland Clinic Main Campus
Primary Location

Cleveland Clinic Main Campus

Specialties & Treatments

Treatment & Services

  • Cardiovascular Medicine Department
  • Debridement of Skin and Wound
  • Non-invasive Testing for Vascular Disease
  • Pseudoaneurysm Injection
  • Vascular Imaging
  • Vascular Medicine Section
View all 6 Treatment & Services +

Specialty in Diseases & Conditions

  • Adverse Effects Anticoagulants
  • Antiphospholipid Syndrome
  • Aortic Occlusion (blockage)
  • Arteriosclerosis Obliterans
  • Atherosclerosis (vascular)
  • Atrophie Blanche
  • Blood Clots
  • Carotid Artery Disease
  • Chronic Venous Insufficiency (CVI)
  • Deep Vein Thrombosis
  • Factor V Leiden
  • Fibromuscular Dysplasia (FMD)
  • Iliac Artery Occlusion (blockage)
  • Klippel-Trenaunay Syndrome (KTS)
  • Leg Circulation Problems
  • Lipedema
  • Lower Extremity Ulcers
  • Lymphedema
  • May-Thurner Syndrome (MTS)
  • Peripheral Artery Disease
  • Protein C and S Deficiencies
  • Pulmonary Embolism
  • Raynaud's Phenomenon
  • Thoracic Outlet Syndrome
  • Varicose Veins
  • Vascular Anomalies
  • Venous Disorders
  • Venous Insufficiency
  • Venous Leg Ulcers
  • Venous Stasis Leg Ulcers
View all 30 Specialties +


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About Natalia Fendrikova Mahlay, MD

Natalia Fendrikova Mahlay, MD, is a staff physician in the Department of Vascular Medicine in the Sydell and Arnold Miller Heart, Vascular & Thoracic Institute.

Dr. Fendrikova Mahlay earned her medical degree from O. Bohomoletz National Medical University in her native country of Ukraine, earning the distinction of Physician Diplomate with Honor. During her residency she participated in international research projects and later was selected to continue her training in the United States as part of a physician exchange program.

Dr. Fendrikova Mahlay graduated from an internal medicine residency program at St. Vincent Charity Hospital, Cleveland. She completed her professional training with a vascular medicine fellowship at Cleveland Clinic and was appointed to the Cleveland Clinic staff in 2011.

She is a member of the American College of Physicians, Society of Vascular Medicine, and the Ukrainian Medical Society. She had been an active member of the Scientific Society of O. Bohomoletz National Medical University. During her training, Dr. Mahlay was honored as Intern of the Year in the internal medicine residency program at St. Vincent Charity Hospital and earned an Honor Diploma from the National Institute of Continuing Medical Education in Ukraine.

Dr. Fendrikova Mahlay served on the Board of Directors of the Ukrainian Museum Archives and volunteers with the Children of Chernobyl Relief Fund. Fluent in Ukrainian and Russian, she also volunteers as an interpreter.

Education & Professional Highlights

Education & Professional Highlights


Education & Fellowships

Fellowship - Cleveland Clinic
Vascular Medicine
Cleveland, OH USA

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

Medical Education - University Hospitals of Cleveland
Clinical Training/Observership
Cleveland, OH USA

Medical Education - O.Bohomoletz National Medical University

Professional Highlights

  • Clinical Assistant Professor in the Department of Medicine in the Cleveland Clinic Lerner College of Medicine of Case Western Reserve University


  • Internal Medicine

Specialty Interests

Peripheral arterial disease, non-atherosclerotic arterial disease (i.e. fibromuscular dysplasia, vasculitis), Raynauds phenomenon, blood clots, deep vein thrombosis, pulmonary embolism, hypercoagulable states, chronic venous insufficiency, vascular anomalies, venous disorders, lymphedema.

Research & Publications

Research & Publications

See publications for Natalia Fendrikova Mahlay, 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 7/8/2019, Dr. Fendrikova Mahlay 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

106 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

22 Patient Comments

Reviewed on Feb 18, 2020

Dr. Mahlay was very thorough and easy to talk to. I felt that she listened to my concerns and gave me good information to use.

Reviewed on Feb 10, 2020

everyone i saw was great. doctor provided treatment options, thorough explanations and follow up approach.

Reviewed on Feb 5, 2020

My experience with all staff at the Cleveland Clinic was excellent. Dr. Mahley was very knowledgeable and compassionate during my visit.

Reviewed on Feb 5, 2020

My interactions with Dr. Mahley and her staff was exceptional. They displayed expertise in their field and interest in my concerns.

Reviewed on Jan 29, 2020

There was a three month wait to visit with Dr. Fendrikova Mahlay. It was hard to wait to find out about my carotid issues during that time period.

Reviewed on Nov 20, 2019

Dr Mahlay is VERY nice!! Explains things very thoroughly and is very concerned about your overall well being. I felt valued as a person and as a patient. I feel VERY confident that I am in good hands.

Reviewed on Nov 13, 2019

scheduling is easy and they let me call to try to get an earlier appointment. Dr is booked way in advance though, so getting an appointment changed is probably not realistic.

Reviewed on Nov 13, 2019

Dr. was very compassionate, listened to all of my concerns and asked numerous questions and never seemed in a rush to see other patients. she even called me directly a couple of days after my visit to discuss additional concerns based on re-examination of my test results.

Reviewed on Nov 11, 2019

I have ALWAYS felt "cared for" whenever I've interacted w/ Dr. Mahlay, both in-person, and through MyChart.

Reviewed on Oct 1, 2019

My doctor was very thorough in evaluating my case and providing a treatment plan forward.

Reviewed on Sep 25, 2019

Great doctor! She listened and gave me service beyond expected.

Reviewed on Sep 10, 2019

Dr. Mahlay is a very pleasant person who will spend time to get to know you and answer questions you have concern with. She is a problem solver who cares.

Reviewed on Sep 4, 2019

the Doctor was excellent

Reviewed on Jul 24, 2019

my doctor was friendly and i was impressed with her demeanor, intelligence and her attention to what i had to say. i really liked her and trust her with my healthcare.

Reviewed on Jul 24, 2019

Dr. Mahlay is an outstanding provider. great listener. Very thorough and patient. Knows her specialty very well. very kind and compassionate.

Reviewed on Jul 17, 2019

Dr. Natalia Fendrikova Mahlay was wonderful. She listened to my questions/comments/concerns. She spoke directly to me and included my family. She spent the time I needed to get all of my questions answered. She made sure I understood the follow up plan. She even called me later in the day with additional information. She made my family and me all very comfortable. We all liked her.

Reviewed on May 17, 2019

Dr. Mahlay is an outstanding doctor, and fully understands FMD. She is compassionate and caring, and we would definitely recommend her to any patient with Fibromuscular Dysplasia. We will be returning for annual check-ups, and it is worth the trip!

Reviewed on May 1, 2019

I will recommend Dr. Malay in the future. Her mannerisms and ability to inform me of my diagnosed conditions were incredible. She made me feel important and went out of her way to spend an incredible amount of time with me.

Reviewed on Apr 24, 2019

I had a wonderful experience with Dr Mahlay. She took the time to explain my condition, she asked questions about my medical state. She spent time with me and made me feel very comfortable with her diagnosis and treatment. Everything went well at Cleveland Clinic and I will be returning yearly for appts. I would highly recommend Dr Mahlay

Reviewed on Apr 24, 2019

Dr. Fendrikova is great! She is also very kind, knowledgeable and caring.

Reviewed on Apr 17, 2019

Dr. Mahlay is outstanding physician- intelligent, compassionate, and always goes the extra mile. highly recommend her!

Reviewed on Mar 28, 2019

my doctor was excellent in every aspect.

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