alert icon Coronavirus

Think you may have COVID-19?
Find out where you can get tested

Need a vaccine or booster?
Schedule today

Coming to a Cleveland Clinic location?
Visitation and mask requirements

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
  • Non-invasive 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 (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 +


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 3/12/2022, 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

136 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

27 Patient Comments

Reviewed on Apr 5, 2022


Reviewed on Mar 22, 2022

Great doctor

Reviewed on Jan 25, 2022

Dr and staff are outstanding!

Reviewed on Jan 25, 2022

Dr. Mahlay is a wonderful person and a very good doctor. Cleveland Clinic is fortunate to have her on their medical team.

Reviewed on Jan 25, 2022

Dr is good to work with.

Reviewed on Jan 18, 2022

Dr Mahlay was very thorough. Explained everything in detail. Shows concern for other issues I mentioned

Reviewed on Jan 12, 2022

Dr. Mahlay is very knowledgeable and willing to discuss any issues and she is also a very sweet person.

Reviewed on Dec 8, 2021

Gave me an assuring assessment and plan for my FMD Feel confident with her.

Reviewed on Nov 23, 2021

Dr. Mahlay is an excellent, thorough, and professional doctor. Our video visit went well with the exception that our visual connection did not work even though I tested my computer before the visit, and it worked well. I could see her, but she could not see me. No big deal to me.

Reviewed on Sep 15, 2021

We love dr Natalia manner

Reviewed on Sep 14, 2021

The Doctor is a very good Doctor she is very through. I respect her and like her treatment and interactions.

Reviewed on Sep 8, 2021

Very impressive physician in her overall manner and professional review of medical records and diagnosis. Reassuring in the diagnosis and the overall plan moving forward.

Reviewed on Aug 25, 2021

Love my doctor, she is the best!!!

Reviewed on Aug 5, 2021

Doc is awesome.Had to wait to see her because she is so good at what she does.Even better,since I have seen her she was able to see me in Strongsville on my next visit.She is awesome and I am grateful.

Reviewed on Jul 14, 2021

Dr. Malay is an excellent and caring physician. The system wait time is ridicululous.

Reviewed on Jul 12, 2021

I have seen my provider for 5 years and she is wonderful, there's really nothing different from visit to visit regarding my care.

Reviewed on Jul 7, 2021

Dr. Mahlay is wonderful! Very thorough, patient, caring.

Reviewed on Jul 6, 2021

Very pleasant Dr. I felt comfortable.

Reviewed on Jun 30, 2021

Dr. Mahlay is a wonderful doctor; caring, concerned, does not rush despite her busy schedule, put me at ease and obviously has very thorough knowledge, expertise and experience with my particular medical issue.

Reviewed on Jun 30, 2021

Excellent patient care, communication and professionalism. A very positive experience. I'm grateful to have found Dr Mahlay and the Clevland clinic. My healthcare team is everything I had how's for my healthcare journey with FMD.

Reviewed on Jun 28, 2021

Everything is great never had any bad dealings, Dr shoes her concern.

Reviewed on Jun 23, 2021

She is an extraordinary physician with a tremendous base of knowledge and wonderful people skills.

Reviewed on Jun 22, 2021

Dr Mahlay and staff always efficient and courteous.

Reviewed on Jun 22, 2021

I have a great deal of respexct for Dr Mahlay in all areas.

Reviewed on Jun 14, 2021

we are very pleased with doctor Natalia's care

Reviewed on May 26, 2021

Over all great experience. I did have over an hour wait time to see the doctor, however, she took her time with me as well.

Reviewed on May 24, 2021

we were very pleased with the ease of checking in the helpful people and the quality of the doctor we met with!

Back to Top