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 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

100 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 4.7
Courtesy, Respect & Concern 4.8
Knows Medical History 4.7
Time Spent with Patient 4.8
Patient Rating of Doctor 4.8

22 Patient Comments

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.

Reviewed on Feb 13, 2019

I appreciate the Dr. Mahlay personally called me to go over test results and took the time to make sure I understood what they ment and what needed to be done going forward. the following day I messaged her through my chart and a short time later she called to answer further questions, and let me know what appointments were available to get me in quickly.

Reviewed on Jan 31, 2019

I will not be returning to this provider. she is so back and forth it isn't funny. I felt like I was wasting her time.

Reviewed on Jan 21, 2019

Dr Fendrikova-Mahlay, is an extraordinary doctor! She "Saved My Life"! At every appointment, I am given excellent and through medical attention! I am 79 years old and thriving under her magnificent care. God bless Dr. Fendrikova-Mahlay!

Reviewed on Jan 14, 2019

Dr Mahlay and Chyna are both helpful, polite and attentive.

Reviewed on Jan 14, 2019

If I could score Dr Mahlay higher I would. She is excellent & I'm appreciative of her knowledge & care.

Reviewed on Jan 14, 2019

I would recommend Dr. Mahlay in a quick minute.

Reviewed on Nov 29, 2018

Dr. Mahlay is caring, professional and obviously well-versed in medicine. I may not have to see her again, depending on my condition, but knowing that I'd be in her care if that happens... is certainly comforting.

Reviewed on Nov 26, 2018

Dr Mahlay has always been careful to tell me all the pros and cons of proposed treatments and medications. This time she helped me with questions about a statin I was taking and also some difficulty I was having with a blood pressure medication.

Reviewed on Oct 30, 2018

Dr. Mahlay was friendly, courteous and informative. she took all the time that was needed to make sure I understood what she was saying.

Reviewed on Oct 3, 2018

*Dr. Mahlay is an exceptional doctor. She makes me feel well cared for, special and respected. She is the best, best in all areas!

Reviewed on Sep 25, 2018

this was my first visit with this doctor and I thought she helped answer my questions and concerns for my problem.

Reviewed on Sep 21, 2018

I really feel this doctor cares about my situation of having blood clots in my body. She wants to find out why.

Reviewed on Sep 21, 2018

I waited in the exam room for the doctor a long time.

Reviewed on Aug 28, 2018

Dr. Malay is a top-notch doctor.

Reviewed on Aug 9, 2018

This Dr. was insensitive and at times rude. She did not fully address the concerns which referred me to her but instead stressed and focused more on my bmi and being overweight.

Reviewed on Aug 8, 2018

doctor was wonderful...highly recommend. her assistant doctor was great as well. both had wonderful bedside manners. the doctor was very impressive in how much of my medical record she knew.

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