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

Cleveland Clinic Main Campus

Specialties & Treatments

Treatment & Services

  • Abnormal Vascular Lab Study
  • Acute Care Medicine
  • Acute Inpatient Care
  • Anticoagulation Therapy
  • Cardiovascular Medicine
  • Cardiovascular Medicine Department
  • Carotid Doppler Ultrasound
  • Non-invasive Testing for Vascular Disease
  • Pseudoaneurysm Injection
  • Sclerotherapy
  • Unna Boot Application
  • Varicose Veins - Cosmetic & Surgical
  • Varicose Veins - Medical Treatment
  • Vascular Medicine Section
  • Vascular Ultrasound
  • Vein Ablation
  • Vena Cava Filters for Treating Venous Disease Treatment
  • Venous Duplex Ultrasound
View all 18 Treatment & Services +

Specialty in Diseases & Conditions

  • Abdominal Aortic Aneurysm
  • Abdominal Aortic Aneurysm Treatments
  • Abdominal Aortic Aneurysmal Disease
  • Aneurysm (Except Brain Aneurysm)
  • Aneurysms
  • Antiphospholipid Syndrome
  • Aorta Disease
  • Aortic Aneurysms
  • Aortic Occlusion (blockage)
  • Aortic Stenosis
  • Aortic Thrombosis
  • Arterial Diseases - "blocked Arteries"
  • Arterial Dissection
  • Arterial Problems
  • Arterial Venous Fistula
  • Arteriosclerosis Obliterans
  • Arteriovenous Malformation (AVM)
  • Arteriovenous Malformations
  • Ascending Aortic Aneurysm
  • Atheroembolism
  • Atheromatous Embolization
  • Atherosclerosis (vascular)
  • Atrophie Blanche
  • Axillary Artery Aneurysm
  • Axillary Vein Thrombosis
  • Axillo Subclavian Vein Thrombosis
  • Blood Clots
  • Blood Clots in Legs
  • Buerger's Disease
  • Caroli Disease/Syndrome
  • Carotid Artery Aneurysm
  • Carotid Artery Disease
  • Carotid Artery Stenosis
  • Carotid Bruit
  • Carotid Disease
  • Carotid Dissection
  • Cellulitis
  • Chronic Mesenteric Ischemia
  • Chronic Thromboembolic Pulmonary Hypertension (CTEPH)
  • Chronic Venous Insufficiency (CVI)
  • Clotting Factor Deficiencies
  • Cystic Adventitial Disease
  • Deep Vein Thrombosis
  • Dissection Of The Aorta
  • Edema
  • Endovenous Ablation
  • Enlarged Aorta
  • Erythema Ab Igne
  • Erythromelalgia
  • External Iliac Artery Endofibrosis
  • Extracranial Carotid Artery Aneurysms
  • Factor Deficiency
  • Factor V Leiden
  • Femoral Artery Aneurysm
  • Femoral Artery Disease
  • Foot And Ankle Ulcers
  • Frostbite
  • Heparin-induced Thrombocytopenia
  • Hepatic Artery Aneurysm
  • High Cholesterol
  • Hypertension - High Blood Pressure
  • Iliac Artery Aneurysm
  • Iliac Artery Occlusion (blockage)
  • Iliac Artery Stenosis
  • Iliac Endofibrosis
  • Intestinal Ischemic Syndrome
  • Ischemic Digits (Upper Extremity)
  • Jugular Vein
  • Klippel-Trenaunay Syndrome (KTS)
  • Leg Pain
  • Lipedema
  • Lower Extremity Ulcers
  • Lupus Anticoagulant
  • Lymphedema
  • Lymphedema - Primary
  • Lymphedema - Secondary
  • May-Thurner Syndrome (MTS)
  • Mesenteric Arteries Occlusive Disease
  • Mesenteric Artery & Vein Disorders
  • Other Arterial Disease
  • Peripheral Artery Aneurysms
  • Peripheral Artery Disease
  • Peripheral Vascular Disease
  • Popliteal Artery Aneurysms
  • Popliteal Artery Entrapment Syndrome
  • Popliteal Artery Entrapment Syndrome (PAES)
  • Post-Phlebitic (Thrombotic) Syndrome
  • Protein C and S Deficiencies
  • Pulmonary Embolism
  • Raynaud's Phenomenon
  • Renal Artery Aneurysm
  • Renal Artery Disease
  • Splenic Artery Aneurysm
  • Spontaneous Coronary Artery
  • Spontaneous Coronary Artery Dissection (SCAD)
  • Subclavian Artery Aneurysm
  • Subclavian Steal Syndrome
  • Superior Vena Cava Syndrome
  • SVC Syndrome
  • Swollen Leg
  • Thoracic Aorta Disease
  • Thoracic Aortic Aneurysm
  • Thoracic Outlet Syndrome
  • Thromboangitis Obliterans
  • Ulnar Artery Aneurysm
  • Varicose Veins
  • Vascular Arterial Diseases
  • Vascular Diseases
  • Vascular Malformations
  • Vascular Wounds
  • Vasculitis
  • Venous Disorders
  • Venous Insufficiency
  • Venous Leg Ulcers
  • Venous Malformations
  • Venous Stasis Leg Ulcers
  • Visceral Artery Aneurysms
  • Visceral Ischemic Syndrome
View all 118 Specialties +


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About Geoffrey Ouma, DO

Geoffrey Ouma, DO, MS, FSVM, RPVI, is a vascular disease specialist in the Tomsich Family Department of Cardiovascular Medicine, Sydell and Arnold Miller Family Heart, Vascular and Thoracic Institute. He sees patients at Cleveland Clinic main campus.

Specialty Interests: Peripheral artery disease (PAD), especially evaluation of limb pain and medical management of claudication; cardiovascular/atherosclerosis risk factor modification in PAD and carotid artery disease/stroke; evaluation and medical management of patients undergoing non-cardiac vascular surgery; limb swelling and chronic venous insufficiency, lipedema, lymphedema, varicose veins, arteriovenous/capillary venous malformations; endovascular therapy for varicose veins and chronic venous insufficiency; complex venous thromboembolism, pulmonary embolism, deep vein thrombosis (DVT), high-risk thrombophilia, complex atherothromboembolism, post-thrombotic syndrome, May-Thurner syndrome, thoracic outlet syndrome, DVT in pregnancy; coagulopathies; management of inferior vena cava filters and noninvasive vascular disease testing; lower extremity wounds

Experience: The Section of Vascular Medicine in Cleveland Clinic’s Tomsich Family Department of Cardiovascular Medicine offers comprehensive care for diseases of the vascular and lymphatic systems, including hyper-coagulable disorders. The section is home to one of the most active vascular laboratories in the country, with more than 2,200 clinical studies performed per month.

Dr. Ouma has more than 10 years’ experience in diagnosing and managing the full range of blood vessel and lymphatic disorders and has treated more than 1,500 patients with venous leg ulcers. His expertise also includes the diagnosis and management of less common vascular disorders such as thromboangitis obliterans (TAO), fibromuscular dysplasia (FMD), the vasculitides, vasospastic disorders, blue/cold fingers and toes and arterial aneurysm. He is board certified in internal medicine, vascular medicine and wound healing, holds certification in hyperbaric oxygen therapy and is a Registered Physician in Vascular Interpretation (RPVI). Dr. Ouma is a Fellow of the Society for Vascular Medicine.

Success Rates: Success rates for specific vascular procedures at Cleveland Clinic are available at

Education: Dr. Ouma earned his medical degree from Lake Erie College of Osteopathic Medicine, Erie Pa. He completed his internal medicine residency at the University of Wisconsin, Milwaukee Clinical Campus/Aurora-Sinai Medical Center, Milwaukee, Wis., followed by a fellowship in vascular medicine at Hospital of the University of Pennsylvania, Philadelphia. During his fellowship, Dr. Ouma earned a master’s degree in translational research from Perelman School of Medicine at the University of Pennsylvania. In 2014 and ‘15 he completed specialized trainings in hyperbaric medicine and wound care medicine.

In 2018 Dr. Ouma participated in a medical mission to Kenya with the organization Hands International. Prior to joining the Cleveland Clinic medical staff in 2020, he was on the staff of Thomas Jefferson University Hospital in Philadelphia.

Publications and Speaking: Dr. Ouma has coauthored papers in peer-reviewed medical journals on peripheral artery disease and limb ischemia and presented abstracts on vascular medicine topics at medical meetings. He served as an editor and contributed a chapter to Atlas of Vascular Medicine: A Case-Based Approach to Current Management (2011) and coauthored a chapter in a leading vascular surgery textbook on hypertension as a risk factor for atherosclerosis.

About Dr. Ouma: “I enjoy the field of vascular medicine because patients often present with uncommon vascular diseases that other physicians have not been able to diagnose. It is always gratifying to help patients finally get answers to their medical problems. I immediately witness how I have been part of relieving their worries and anxiety. Although the majority of these vascular ailments are benign, they are worrisome and annoying and, therefore, difficult for a patient to ignore.

Leisure Activities: In his leisure time, Dr. Ouma enjoys playing the guitar, listening to music, cooking Kenyan food, travelling with his family and playing pick-up soccer games.

Education & Professional Highlights

Education & Professional Highlights


Education & Fellowships

Fellowship - Hospital of the University of Pennsylvania
Vascular Medicine
Philadelphia, PA USA

Graduate School - University of Pennsylvania
Translation Research
Philadelphia, PA USA

Residency - Aurora Medical Center
Internal Medicine
Milwaukee, WI USA

Residency - Crozer-Chester Medical Center
Upland, PA USA

Internship - Crozer-Chester Medical Center
Osteopathic Internship
Upland, PA USA

Medical Education - Lake Erie College of Osteopathic Medicine
Erie, PA USA

Undergraduate - University of Maryland
College Park, MD USA


  • Registered Physician in Vascular Interpretation

Specialty Interests

Clinical interests: (1) Peripheral artery disease (PAD), especially evaluation of limb pain and medical management of claudication, (2) Cardiovascular/atherosclerosis risk factor modification in PAD and carotid disease/stroke. (3) Evaluation and medical management of the surgical patient undergoing noncardiac vascular surgery, (4) Evaluation and management of limb swelling and chronic venous insufficiency, lymphedema, varicose veins. arteriovenous malformation/capillary venous malformations. (5) Catheter therapy for varicose veins and chronic venous insufficiency; laser/radiofrequency catheter ablation, and sclerotherapy/foam injections. (6) Evaluation and treatment of complex venous thromboembolism, deep vein thrombosis, pulmonary embolism, and complex atherothromboembolism. (7) Evaluation and management of coagulopathies and the use of direct oral anti-factor 10 anticoagulants. (8) Evaluation and management of less common vascular disoders i.e. thromboangiitis obliterans (TAO), the vasculitides, and vasospastic disorders, (9) Evaluation and management of wounds including venous wounds, arterial leg wounds, surgical/trauma related wounds, sickle cell associated leg wounds, and adjutant hyperbaric oxygen therapy in wound healing.

Innovations & Patents

  • 2018  Compositions comprising hypoxia inducible factor-1 alpha and methods of using the same
Research & Publications

Research & Publications

See publications for Geoffrey Ouma, DO.

(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 4/28/2021, Dr. Ouma 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

58 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
Courtesy, Respect & Concern 4.9
Patient Rating of Doctor 4.8

11 Patient Comments

Reviewed on May 18, 2021

best treatment I have ever received from a doctor and clinic.

Reviewed on May 14, 2021

The doctor listened to my conerns and addressed them during the appointment.

Reviewed on May 4, 2021

They Dr reviewed my chart prior to my apt and knew he was unable to help me for the reason I was being seen. He then referred me to another Dr while I was in the apt with him. He also explained why he couldn't help me at this time. He was very reassuring and put me at ease to see the next Dr. Thankful for his kindness on a difficult day.

Reviewed on Apr 19, 2021

Dr. Ouma listened to what I was saying about my condition having gotten worse. He then referred me to a cardiologist for further treatment.

Reviewed on Apr 16, 2021

Was comfortable with doctor Ouma and courtesy with which he answered my questions.

Reviewed on Apr 5, 2021

overall excellent encounter with all. Doctors very informative.

Reviewed on Nov 10, 2020

very nice caring doctor

Reviewed on Nov 10, 2020

each doctor, nurse or assistant made me feel very comfortable. everyone is so kind and nice throughout Cleveland clinic!

Reviewed on Oct 30, 2020

Excellent doctor.

Reviewed on Jul 30, 2020

My experience with Dr. Ouma was amazing. He and his staff went out of their way to put me at ease to help me find a solution to my problems.

Reviewed on Jul 30, 2020

Dr. Ouma in my opinion is an amazing doctor. He went above board to accommodate me. Since my husband and I had traveled quite a distance for this appointment he made arrangements for me to have an ultrasound the following day, he read the ultrasound, and squeezed me into his schedule to go over the results with me.

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