Dr. Timothy Marshall, MD

Dr. Timothy Marshall, MD

Cardiology  |  
Male  |  
Age 62
Insurances AcceptedSave
Dr. Timothy Marshall, MD is a cardiology doctor who practices in Tucson, AZ. He is 62 years old and has been practicing for 38 years.

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.

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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."


  • Cardiology
  • Interventional Cardiology

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*

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 Disease
  • Hypertensive Heart and Chronic Kidney 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 More


  • Angiography
  • Angioplasty
  • Automatic Implantable Cardioverter Defibrillator (ICD) Implantation
  • Cardiac Catheterization (incl. Coronary Angiography)
  • Cardiac Electrophysiology
  • Cardiac Imaging
  • Cardiac Myocardial Perfusion Imaging
  • Cardiovascular Stress Test
  • Cardioversion, Elective
  • Coronary Angioplasty, Atherectomy and Stent
  • Echocardiography
  • Impella Device
  • Mitral Valve Surgery
  • Peripheral Artery Catheterization
  • Stenting
  • Tilt Testing or Cardiac Event Monitors

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
based on 30 total reviews (4 with comments)
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 (4)
Tucson, CA |
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.
in Sierra Vista, AZ |
Dr M's patient since 1998. Find him caring, professional and easy to talk with. His staff has been excellent--since I have to drive from Sierra Vista would not see him if I did not have complete confidence in him. OT--the dogs are a nice touch!!
in Tucson, AZ |
I am young, and I look healthy, but I am not. Dr. Marshall told me that I didn't have diseases that are outside his area of specialty, and the worst part is that he did not even ask me the established diagnostic questions to determine this. Dr. Marshall may suffice for you if you have a straightforward case, but if you are an unusual case, then you may leave the office feeling demoralized (and you'll pay $100 for it too). I don't trust that my cardiovascular system will be well assessed here.
in Virginia Beach, VA |
Dr. Marshal and his tech were insensitive and unhelpful. The tech was uncaring and unknowledgeable and caused bruises. I would be happy to supply photos.
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Visit Dr. Marshall

Now Accepting New Patients
Dr. Marshall accepts 9 insurance carriers
  • Aetna
    Choice PPO
    Commercial HMO
  • Blue Cross Blue Shield
    Blue Cross Blue Shield PPO
  • Blue Cross Blue Shield of Arizona
    Blue Cross Blue Shield of Arizona HMO
    Blue Cross Blue Shield of Arizona PPO
  • Cigna
    Commercial HMO
    Commercial PPO
  • Health Net
    Health Net HMO
  • Humana
  • UnitedHealthCare
    United Healthcare
  • WellCare
    WellCare PPO
  • WellPoint

*Please verify this information when scheduling an appointment.

Hospitals where Dr. Marshall has admitting privileges

Tucson Medical Center
5301 E Grant Rd
Tucson, AZ 85712
View Hospital Profile

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