Dr. Timothy Marshall, MD

Dr. Timothy Marshall, MD

Cardiology  ·  
Male  ·  
Age 62
Dr. Timothy Marshall, MD is a cardiology specialist in Tucson, AZ and has been practicing for 24 years. He graduated from University Of Saskatchewan College Of Medicine in 1979 and specializes in cardiology and interventional cardiology.

5170 E Glenn St Ste 160

Tucson, AZ 85712

Contact Information

(520) 298-7900

Insurance Accepted

  • Aetna
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of Arizona
  • Cigna
  • Health Net
  • Humana
  • UnitedHealthCare
  • WellCare
  • WellPoint

*Please verify this information when scheduling an appointment.

Learn about Dr. Marshall

Be confident in your decisions by checking out your provider's top areas of care, education, patient reviews and more. Learn about finding the right doctor for you.

Top Care Areas

See how frequently Dr. Marshall performs your care needs compared to other doctors.

Aortic Stenosis
very high
more than 99% of peers
very high
more than 99% of peers
Aortic Valve Regurgitation
very high
more than 99% of peers

Dr. Marshall's percentages are based on the rate of treatment compared to peers nationwide from insurance data. Learn more info about our data and this Top Care Areas component.

Care Philosophy

This content was provided by Dr. Marshall "In private Cardiology practice for fifteen years in Tucson, Arizona, Dr. Marshall is Board Certified in Cardiology and Interventional Cardiology. He is well trained and experienced in the treatment of coronary artery disease with angioplasty and coronary stents. Performing over four hundred angiograms per year he has successfully treated thousands of patients with coronary angioplasty. With a special interest in the assessment of cardiac risk and risk factor modification, his goal is the prevention coronary artery disease. At Marshall Cardiology you will find all the resources necessary for the early detection and prompt treatment of cardiovascular disease, the nation's number one killer."

2  Specialties

  • Cardiology
  • Interventional Cardiology

3  Board Certifications

  • Cardiovascular Disease
    Accredited by: American Board of Internal Medicine*
  • Internal Medicine
    Accredited by: American Board of Internal Medicine*
  • Interventional Cardiology
    Accredited by: American Board of Internal Medicine*

48  Conditions Treated

  • Aneurysm
  • Aneurysm and Dissection of Heart
  • Angina and Acute Coronary Syndrome
  • Aortic Aneurysm
  • Aortic Ectasia
  • Aortic Stenosis
  • Aortic Valve Disease
  • Aortic Valve Regurgitation
  • Arrhythmias
  • Atrial Fibrillation
  • Atrial Flutter
  • Cardiomegaly
  • Cardiomyopathy
  • Carotid Artery Disease
  • Chest Pain
  • Chronic Pulmonary Heart Diseases (incl. Pulmonary Hypertension)
  • Congenital Heart Defects
  • Congenital Heart Disease
  • Congestive Heart Failure
  • Coronary Artery Disease (CAD)
  • Endocarditis
  • Heart Attack (Acute Myocardial Infarction)
  • Heart Disease
  • Heart Murmur
  • Heart Palpitations
  • Hyperlipidemia
  • Hypertension
  • Hypertensive Chronic Kidney Disease
  • Hypertensive Heart and Chronic Kidney Disease
  • Hypertensive Heart Disease
  • Hypotension
  • Limb Swelling
  • Limb Swelling Caused by Fluid Overload
  • Mitral Valve Disease
  • Mitral Valve Regurgitation
  • Mitral Valve Stenosis
  • Palpitations
  • Pericardial Disease
  • Primary Pulmonary Hypertension
  • Pulmonary Disease
  • Pulmonary Hypertension
  • Rheumatic Aortic Valve Disorders
  • Secondary Hypertension
  • Septal Defect
  • Syncope
  • Thrombosis
  • Tricuspid Valve Disease
  • Vascular Disease
Read Less

16  Procedures

Background Check

Malpractice Claims not available

Healthgrades does not collect malpractice information for Arizona.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

No board actions found for the years that Healthgrades collects data.


  • University Of Saskatchewan / College Of Medicine
    Undergraduate School | Graduated 1974
  • University Of Saskatchewan College Of Medicine
    Medical School | Graduated 1979
  • Royal Jubilee Hospital
    Internship Hospital | Completed 1987
  • University Of British Columbia
    Residency Hospital | Completed 1993
  • Univrsity Of Calgary
    Fellowship Hospital | Completed 1994

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
  • Cardiology Award, Resident's Research Day, U.B.C. Dept of Medicine, 1988
  • Clinical Investigation Award, Health Science Research Day U.B.C., 1987
  • Best Doctors in America, Best Doctors, 2007 - 201
  • Morton Fuchs Attending of the Year Award , Tucson Hospitals Medical Education Program, 1999
  • Stefan Gryzbowski Prize, Best Clinical Research,U.B.C. Department of Medicine, 1991
  • Hewlett-Packard Senior Cardiology Resident Prize, U.B.C. Division of Cardiology, 1992
  • Max Walters Award, U.B.C. Division of Cardiology, 1993
Media & Publications

Dr. Marshall has no media or publications listed.

Languages Spoken

  • English
  • Spanish

Memberships & Professional Affiliations

Dr. Marshall does not have any memberships or affiliations listed. If you are Dr. Marshall and would like to add memberships or affiliations, please update your profile.

Dr. Marshall's Reviews

Likelihood of recommending Dr. Marshall to family and friends
35 total reviews (8 have comments)

Likelihood to Recommend (35)

  • 5
  • 4
  • 3
  • 2
  • 1

Dr. Marshall's Performance

  • Trustworthiness

  • Explains condition(s) well

  • Answers questions

  • Time well spent


Office & Staff Performance

  • Scheduling

  • Office environment

  • Staff friendliness

  • Average wait time

    16 to 30 minutes

Patient Comments (8)

Saw Dr Marshal numerous times from 2001-2002. Had three stents placed and folks I am still here. He is the best along with Dr Singh, Dr Taussig, and Dr Ruben original Docs and Dr Jorge Saucedo who place the last two stents in Oklahoma. would recommend to anyone wanting excellent heart care
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I'm a health care provider and I brought one of my patients to Dr Marshall's office today. Upon walking in the waiting room was full and the staff was overwhelmed. Top to things off the doctor let's his dog roam free in the clinic. I have severe dog allergies and started having problems breathing...more
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My family had been with Dr. Marshal for over 20 years. My parents were his patients first and then I in 1997. When he attended to my parents and myself he was amazing. Compassionate, caring and very competent. In recent years he has changed. Probably he has spread himself too thin. At my...more
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My husband came to Dr. Marshall for a 2nd opinion and chose to stay with him . Dr. Marshall told my husband that the first cardiologist had misdiagnosed him . After almost one year with Dr. Marshall, he went to Mayo Clinic and has seen two cardiologists- a cardiac generalist and a cardiac...more
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Dr. Marshall is personable, takes the time to explain any results or tests and is very good at what he does! The best cardiologist in Tucson. A nice guy and so great having dogs in the office! Great for calming down any nerves I have.
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