Emergency icon Important Updates
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
  • Cardiovascular Medicine Department
  • Debridement of Skin and Wound
  • Noninvasive Testing for Vascular Disease
  • Pseudoaneurysm Injection
  • Vascular Imaging
  • Vascular Medicine Section
View all 7 Treatment & Services +

Specialty in Diseases & Conditions

  • Adverse Effects Anticoagulants
  • Antiphospholipid Syndrome
  • Aortic Occlusion (Blockage)
  • Arteriosclerosis Obliterans
  • Atherosclerosis
  • 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 Deficiency
  • Protein S Deficiency
  • Pulmonary Embolism
  • Raynaud's Phenomenon
  • Thoracic Outlet Syndrome (TOS)
  • Varicose Veins
  • Vascular Anomalies
  • Venous Disorders
  • Venous Insufficiency
  • Venous Leg Ulcers
  • Venous Stasis Leg Ulcers
View all 31 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 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


  • Vascular Medicine
  • 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 4/18/2023, 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

171 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

32 Patient Comments

Reviewed on Nov 13, 2023

Dr. Mahlay is fantastic. She is very caring and listens to all of my concerns attentively and is very patient with all of my questions. I feel very confident that I am getting great care. I would recommend her to any of my family and friends.

Reviewed on Nov 13, 2023

Doctor Mahlay was very professional and explained all observations with regards to my condition. She was very through in her exam of my condition.

Reviewed on Oct 18, 2023

Dr. Fendrikova Mahlay was very thorough and answered each of my questions. I appreciated the time she took to ensure I understood the condition, the test results and next steps. She also entered orders and notes while I was there so I left with everything I needed.

Reviewed on Oct 17, 2023

The doctor is one of the BEST that I have ever seen. Truly an asset to the Clinic!

Reviewed on Oct 12, 2023

The doctor was excellent.

Reviewed on Sep 26, 2023

Dr Mahlay, in my opinion, is one of the best...listens carefully, weighs my options, considers my input, & is not afraid to make a judgment regarding the best course of treatment for me.

Reviewed on Sep 20, 2023

Dr Mahlay was very thorough. Listened to my concerns, patient and very knowledgeable. She made me feel like I was in good hands. I would definitely recommend her to others.

Reviewed on Sep 13, 2023

Best doctor ever!!

Reviewed on Sep 6, 2023

She is wonderful! VERY Caring! The best doctor I've ever had!

Reviewed on Aug 16, 2023

Dr Mahlay is WONDERFUL! So caring-answers every question-extremely thorough. Also I believe a Dr Khan was there first and he was excellent also.

Reviewed on Aug 15, 2023

She listened carefully and answered questions so I understood what was going on with my problem

Reviewed on Aug 2, 2023

Dr. Mahlay is an excellent caregiver. I feel confident that I am in good hands with her care.

Reviewed on Jul 26, 2023

Staff an doctor very helpful an kind

Reviewed on Jul 26, 2023

Nurse was very kind offer me water when blood pressure was a little low an she explain everything before I seen doctor

Reviewed on Jul 19, 2023

Dr Fedrikova-Mahayana answered my questions about my aneurysm and FMD.

Reviewed on Jul 5, 2023

Dr Mahlay is exceptional!

Reviewed on Jun 29, 2023

Dr.Malay was awesome again. It has been a pleasure being her patient.

Reviewed on May 24, 2023

Fantastic physician and staff.

Reviewed on May 22, 2023

The doctor took the time to actually sketch out what she was explaining to me, the visual was very helpful.

Reviewed on May 19, 2023

Dr. Mahlay's staff was extremely professional and very helpful.

Reviewed on May 19, 2023

Dr. Mahlay spent so much time with me, addressing all of my concerns

Reviewed on May 17, 2023

Dr. Mahlay Is a very patient, kind and thorough physician. She never appears rushed, listens to my concerns, and clearly explains my plan of care. I feel very well cared for- worth the visit as I am from out of state. Thank you!

Reviewed on May 17, 2023

My tests were coordinated very well , on time, and ended with the physician appointment all in one day. It was a seamless experience . Thank you!

Reviewed on May 17, 2023

Love my doctor! She is very caring and always makes me feel loved

Reviewed on Mar 8, 2023

Dr. Mahlay is simply the best. She is kind, caring, empathetic and always explains thoroughly.

Reviewed on Feb 22, 2023

She takes the time to explain everything and listens to what patient has to say

Reviewed on Feb 16, 2023

I am very satisfied and pleased with Dr. Mahlay.

Reviewed on Jan 31, 2023

The Dr took alot of time to explain everything

Reviewed on Jan 25, 2023

Dr.Mahlay and staff are outstanding.

Reviewed on Jan 9, 2023

Dr. Was very good and helpful on every thing I asked.

Reviewed on Dec 21, 2022

She's a wonderful Doctor and very knowledgeable about FMD .

Reviewed on Dec 7, 2022

She was wonderful - she had reviewed all my information and tests ahead of time - and spent time educating us

Back to Top