Dr. Walt Marquardt, MD

Dr. Walt Marquardt, MD

Interventional CardiologyMale

Interventional Cardiology

Dr. Walt Marquardt, MD is a Interventional Cardiology Specialist in Grass Valley, CA and has over 41 years of experience in the medical field. Dr. Marquardt has extensive experience in Adult Congenital Heart Conditions, Interventional Cardiac Procedures, and Heart Conditions. He graduated from UNIVERSITY OF PITTSBURGH SCHOOL OF MEDICINE medical school in 1981. He is affiliated with Mercy General Hospital, winner of the Cardiac Surgery Excellence Award. He is also affiliated with Sierra Nevada Memorial Hospital. His office accepts new patients and telehealth appointments.

Locations

Mercy Medical Group

Grass Valley - Catherine Ln.150 Catherine Ln Grass Valley, CA 95945
1
New Patient?
(530) 248-6081

Dignity Health Mercy Medical Group

Dignity Health Mercy Medical Group3941 J St Ste 260 Sacramento, CA 95819
2
New Patient?
(530) 248-6081

At a Glance

  • Explains Conditions Well Patients said this doctor explains conditions well. See reviews
  • Offers Telehealth This provider offers telehealth appointments. Call the office to schedule an appointment.
  • Practices at Top Hospital America’s 50 Best Hospitals for Cardiac Surgery Award™ See hospitals

Dr. Marquardt's Reviews

Likelihood to recommend Dr. Marquardt

4.8

Based on 23 ratings

5 Stars
91.30434782608695%
(21)
4 Stars
4.3478260869565215%
(1)
3 Stars
0%
(0)
2 Stars
0%
(0)
1 Star
4.3478260869565215%
(1)
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Dr. Marquardt
What went well
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RecentHighestLowestMost Helpful
Reply
Best in the West
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Craig Anderson – Aug 30, 2020
Craig, thank you for your feedback as we love to...Read More
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Reply
Dr. Marquardt is the best. He takes time to explain everything and show interest in your needs. His support and care to my husband has been outstanding. We are so thankful to have him as our doctor….
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
2 people found this helpful
Helpful
Rodney and Leona Bettencourt – Aug 05, 2019
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Reply
Dr Marquardt is a phenomenal doctor. He's got knowledge, experience and heart. He is an exceptional cardiologist. Respected highly by his patients and staff. He saved my father's life and I trust him implicitly!!! I highly recommend him. No words can express my enormous gratitude and admiration for him.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
1 person found this helpful
Helpful
Sacramento, CA – Apr 12, 2019
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Reply
Dr Marquardt is a phenomenal surgeon and has great bedside manner. My husband had a heart attack and he placed a stent, provided all after care and was his doctor for 2 years following until our insurance coverage changed. He spends a long time with patients, explains things thoroughly and in terms that are understandable to the layman. Dr Marquardt is the only surgeon I would choose for a life threatening heart procedure.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Lisa G in Sacramento – Apr 10, 2019
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Reply
A great Doctor, also friendly and communicative. After my heart attack of last December, and a Code 3 Ambulance ride from Grass Valley to Mercy General, he put in 3 stents. I am doing great. He is highly respected by the Hospital staff people. Also, Sierra Nevada Memorial Hospital and Mercy General are excellent! (I have had 5 surgeries at these hospitals)
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
2 people found this helpful
Helpful
Bob Zuelsdorf in Grass Valley , CA – Aug 14, 2018
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Reply
Dr. Marquardt has providing care for my Grandmother, father and mother, myself and now my mother-in-law. He has been thoughtful, caring and the entire family has total confidence in his diagnoses and treatment recommendations. We are very lucky to have a man of his quality and integrity in our area.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
  • Long wait times
8 people found this helpful
Helpful
Rocklin, CA – Oct 31, 2016
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Experience and Background Checks

Experience
Background

Background Check

No malpractice claims found for California
No disciplinary actions found for the years we collect data
No board actions found for the years we collect data
Learn more about background checks

Frequently Treated by Dr. Marquardt

Based on treatment records, we have identified the following as areas of care that Dr. Marquardt treats more often than their peers. If you are unsure whether Dr. Marquardt treats other conditions, please contact the office at (530) 248-6081.

Adult Congenital Heart Conditions

Adult congenital cardiac disorder specialists diagnose and treat heart disorders, such as arrythmias and mitral valve disease, that have been present from birth to adulthood.Compare with other Adult Congenital Heart Conditions specialists.

Dr. Marquardt is experienced in the area of Adult Congenital Heart Conditions. See the graph below to learn more about his experience.

Based on claims data for 19 conditions and procedures

Treatments
Dr. Marquardt
Similar Providers
Aortic Valve Regurgitation
Mitral Valve Stenosis
Aortic Stenosis
Mitral Valve Regurgitation
Normal
Frequency
High
Frequency
Very High
Frequency

Interventional Cardiac Procedures

Interventional cardiologists specialize in catheter-based treatment of heart diseases through procedures such as cardiac catheterization, impella devices, and stent placement.Compare with other Interventional Cardiac Procedures specialists.

Dr. Marquardt is experienced in the area of Interventional Cardiac Procedures. See the graph below to learn more about his experience.

Based on claims data for 7 conditions and procedures

Treatments
Dr. Marquardt
Similar Providers
Cardiac Catheterization (incl. Coronary Angiography)
Coronary Angioplasty, Atherectomy and Stent
Impella Device
Peripheral Artery Catheterization
Normal
Frequency
High
Frequency
Very High
Frequency

Heart Conditions

Compare with other Heart Conditions specialists.

Dr. Marquardt is experienced in the area of Heart Conditions. See the graph below to learn more about his experience.

Based on claims data for 34 conditions and procedures

Treatments
Dr. Marquardt
Similar Providers
Heart Attack (Acute Myocardial Infarction)
Heart Disease
Hypotension
Angina and Acute Coronary Syndrome
Normal
Frequency
High
Frequency
Very High
Frequency

Cardiac Electrical System Procedures

Electrophysiologists monitor, diagnose and treat abnormal heart rhythms through procedures such as electrocardiograms (EKGs) and pacemaker insertionsCompare with other Cardiac Electrical System Procedures specialists.

Treatments
Dr. Marquardt
Similar Providers
Electrocardiogram (EKG)
Cardiovascular Stress Test
Echocardiography
Cardioverter-Defibrillator or Pacemaker Insertion, Removal or Repair
Normal
Frequency
High
Frequency
Very High
Frequency
Hide other treatment areas

Check Dr. Marquardt's experience treating your condition or procedure

Dr. Marquardt's conditions and procedures:

  • Ablation for Treatment of Cardiac Arrhythmias
  • Aneurysm
  • Aneurysm of Heart
  • Angina
  • Angina and Acute Coronary Syndrome
  • Aortic Aneurysm
  • Aortic Dissection
  • Aortic Ectasia
  • Aortic Embolism and Thrombosis
  • Aortic Stenosis
  • Aortic Valve Disease
  • Aortic Valve Regurgitation
  • Aortic Valve Surgery
  • Arrhythmia Screening
  • Arrhythmias
  • Atrial Fibrillation
  • Atrial Flutter
  • Atrial Septal Defect
  • Automatic Implantable Cardioverter Defibrillator (ICD) Implantation
  • Cardiac Catheterization (incl. Coronary Angiography)
  • Cardiac Imaging
  • Cardiac MRI (Magnetic Resonance Imaging) of Heart or Chest
  • Cardiac Myocardial Perfusion Imaging
  • Cardiac Procedure
  • Cardiac Tamponade
  • Cardiomegaly
  • Cardiomyopathy
  • Cardiomyopathy, Dilated
  • Cardiomyopathy, Hypertrophic
  • Cardiovascular Diagnostic Test
  • Cardiovascular Disease
  • Cardiovascular Intervention
  • Cardiovascular Stress Test
  • Cardioversion, Elective
  • Cardioverter-Defibrillator or Pacemaker Insertion, Removal or Repair
  • Carotid Artery Disease
  • Chest CT (incl. Heart and Lungs)
  • Chest Pain
  • Chest Pain Evaluation
  • Cholesterol Screening
  • Chronic Pulmonary Heart Diseases (incl. Pulmonary Hypertension)
  • Coarctation of the Aorta
  • Congenital Aortic Valve Disorders
  • Congenital Heart Defects
  • Congenital Heart Disease
  • Congestive Heart Failure
  • Coronary Angiogram
  • Coronary Angioplasty, Atherectomy and Stent
  • Coronary Artery Aneurysm
  • Coronary Artery Disease (CAD)
  • Coronary Artery Dissection
  • Coronary Interventional Procedures
  • Dobutamine Thallium Stress Test
  • Echocardiography
  • Electrocardiogram (EKG)
  • Endocarditis
  • First Degree Heart Block
  • Heart Attack (Acute Myocardial Infarction)
  • Heart Disease
  • Heart Murmur
  • Heart Palpitations
  • Heart Tumors, Benign
  • HeartAware Online Risk Screening
  • Hyperlipidemia
  • Hypertension
  • Hypertensive Chronic Kidney Disease
  • Hypertensive Heart and Chronic Kidney Disease
  • Hypertensive Heart Disease
  • Hypotension
  • Impella Device
  • Insertion of Left Ventricular Lead for Pacemaker or Cardioverter and-or Defibrillator
  • Limb Swelling Caused by Fluid Overload
  • Long QT Syndrome
  • Mitral Valve Disease
  • Mitral Valve Prolapse
  • Mitral Valve Regurgitation
  • Mitral Valve Stenosis
  • Mitral Valve Surgery
  • Mobitz, Type 2, Heart Block
  • Muscular Dystrophy (MD)
  • Non-Coronary Angioplasty, Atherectomy, and Stenting
  • Nuclear Stress Testing
  • Pacemaker Insertion or Replacement
  • Patent Foramen Ovale (PFO)
  • Pericardial Disease
  • Pericarditis
  • Peripheral Arterial Disease Screening (PAD)
  • Peripheral Artery Catheterization
  • Peripheral Vascular Intervention
  • Pharmacologic Nuclear Stress Test
  • Pharmacologic Stress Test, Adenosine
  • Primary Pulmonary Hypertension
  • Prinzmetal Angina
  • Pulmonary Edema
  • Pulmonary Hypertension
  • Pulmonary Valve Disease
  • Removal or Revision of Pacemaker or Cardioverter and-or Defibrillator
  • Second Degree Heart Block
  • Secondary Hypertension
  • Septal Defect
  • Sick Sinus Syndrome
  • Sinus Bradycardia
  • Sinus Tachycardia
  • Stress Test
  • Structural Heart Disease Evaluations and Treatment
  • Supraventricular Tachycardia
  • Syncope
  • TCD Bubble Test
  • Third Degree Heart Block
  • Thoracentesis
  • Thrombolysis
  • Tilt Table Testing
  • Tilt Testing or Cardiac Event Monitors
  • Transcatheter Aortic Valve Replacement (TAVR)
  • Treadmill Stress Test
  • Tricuspid Valve Disease
  • Unstable Angina
  • Valve Repair or Replacement (Aortic, Mitral, Tricuspid, and Pulmonary)
  • Vascular Duplex Ultrasonography and Plethysmography
  • Ventricular Fibrillation
  • Ventricular Septal Defect
  • Ventricular Tachycardia (VT)

Insurance Check

Search for your insurance provider

Dr. Marquardt accepts

Accepted insurance can change. Please double-check when making an appointment.

(530) 248-6081

Dr. Marquardt accepts the following insurance:

Aetna
Aetna HMO
Choice Plus POS II
Anthem
Access for Infants & Mothers (AIM)-CA HMO
Advantage-CA HMO
Advantage-CA PPO
Balanced (Prudent Buyer)-CA PPO
Blue Cross (CACare) - Individual-CA HMO
Blue Cross (CACare) - Large Group-CA HMO
Blue Cross (CACare) - Small Group-CA HMO
Blue Cross (Prudent Buyer) - Individual-CA PPO
Blue Cross (Prudent Buyer) - Large Group-CA PPO
Blue Cross (Prudent Buyer) - Small Group-CA PPO
Blue Cross (Prudent Buyer) - Student Health-CA PPO
Blue Cross-CA HMO-POS
Bronze (Prudent Buyer PPO/ Small Grp)-CA PPO
Bronze EPO (Prudent Buyer / Small Grp)-CA PPO
Bronze EPO (Prudent Buyer EPO/ Small Grp)-CA
Bronze w/ H.S.A (Prudent Buyer PPO/Small Grp)-CA PPO
Dignity Health Custom Advantage-CA HMO
Dignity Health EPO / PPO-CA
Dignity Health PHC EPO & HDP/HSA-CA
Dignity Health Ventura EPO/PPO-CA
EPO-CA
Gold (CaliforniaCare HMO/ Small Grp) HMO
Gold (Prudent Buyer PPO/ Small Grp)-CA PPO
Gold Advantage-CA PPO
Gold EPO (Prudent Buyer / Small Grp)-CA PPO
Gold EPO (Prudent Buyer EPO/ Small Grp)-CA
Gold Select (Select / Small Grp)-CA HMO
Lumenos Plans-CA PPO
Major Risk Medical Insurance Program (MRMIP) - Prudent Buyer-CA PPO
MemorialCare Custom-CA PPO
National (BlueCard Basic) PPO
National (BlueCard) PPO
PERS Choice / PERSCare Providers-CA PPO
PERS Select-CA HMO
PERS Traditional-CA HMO
Platinum (CaliforniaCare HMO/ Small Grp) HMO
Platinum (Prudent Buyer PPO/ Small Grp)-CA PPO
Platinum Select (Select / Small Grp)-CA HMO
Select Plus-CA HMO
Select-CA HMO
Silver (CaliforniaCare HMO/ Small Grp) HMO
Silver (Prudent Buyer PPO/ Small Grp)-CA PPO
Silver Advantage-CA PPO
Silver EPO (Prudent Buyer EPO/ Small Grp)-CA
Silver EPO w/ H.S.A (Prudent Buyer/Small Grp)-CA PPO
Silver Select (Select / Small Grp)-CA HMO
Silver w/ H.S.A (Prudent Buyer PPO/Small Grp)-CA PPO
Tenet Network-CA PPO
Traditional
Traditional PPO
UC Care-CA PPO
UC CORE-CA PPO
UC Health Savings Plan-CA
UC High Option Supplement to Medicare-CA
UC Medicare with Prescription Drugs-CA PPO
UC Medicare without Prescription Drugs-CA PPO
UC Resident and Fellows-CA PPO
UCSHIP-CA PPO
USC Plan (Two Tiered Network)-CA HMO
Anthem Blue Cross
Blue Cross Blue Shield
Blue Card PPO
Blue Cross Blue Shield of California
Advantage Preferred DirectAccess Plus PPO
Blue Cross Blue Shield of California PPO
Select Plus HMO
Blue Shield of California
CareFirst Blue Cross Blue Shield
HealthyBlue 2.0
HealthyBlue Advantage
ChoiceCare Network
Cigna
Cigna PPO
LocalPlus
Open Access Plus
Coventry Health Care
First Health (Coventry Health Care)
First Health (Coventry Health Care) PPO
Health Net
HealthSmart - Interplan Health Group
Interplan Health Group
Humana
Choice Care PPO
MultiPlan
MultiPlan PPO
Networks By Design
Pacific Foundation for Medical Care
Tricare
UnitedHealthCare
United Healthcare
Western Health Advantage

About Me

Care Philosophy

I believe in treating my patients with dignity and respect and providing care tailored to the indivdual needs of the patient.

Specialties

  • Interventional Cardiology
  • Cardiology

Board Certifications

  • Interventional Cardiology

Education

1988
San Francisco Hrt Inst-Seton Med Ctr
Fellowship Hospital
1987
Hosp Of U Hlth Ctr-U Pittsburgh
Fellowship Hospital
1984
Hosp Of U Hlth Ctr-U Pittsburgh
Residency Hospital
1982
Hosp Of U Hlth Ctr-U Pittsburgh
Internship Hospital
1981
UNIVERSITY OF PITTSBURGH SCHOOL OF MEDICINE
Medical School
,

Awards

Frequently Asked Questions

How can I make an appointment with Dr. Walt Marquardt, MD?

Call (530) 248-6081 to make an appointment as a new patient. Click here for more information.

Does Dr. Walt Marquardt, MD offer telehealth services?

Dr. Marquardt has indicated that they offer telehealth. Contact the office to check for eligibility for your needs.

Is Dr. Walt Marquardt, MD accepting new patients?

Dr. Walt Marquardt, MD generally accepts new patients on Healthgrades. You can see Dr. Marquardt's profile to make an appointment.

Does Dr. Walt Marquardt, MD accept my insurance?

Use the Healthgrades insurance check to verify if Dr. Marquardt accepts your insurance.

What are Dr. Walt Marquardt, MD's top areas of care?

Dr. Marquardt frequently treats Adult Congenital Heart Conditions, Interventional Cardiac Procedures, and Heart Conditions. See all practice areas where Dr. Marquardt specializes.

Where is Dr. Walt Marquardt, MD's office located?

Dr. Marquardt's office is located at 150 Catherine Ln, Grass Valley, CA 95945. Find other locations and directions on Healthgrades.

Affiliated Hospitals

Dr. Marquardt is affiliated with the following hospitals. Select a hospital below to learn more.

Learn more about how Healthgrades measuresHospital Quality.

Sierra Nevada Memorial Hospital

Grass Valley, CA

66% Patients that would definitely recommend, 4% lower than the national average

2 Awards Received

Mercy General Hospital

Sacramento, CA

77% Patients that would definitely recommend, 7% higher than the national average

7 Awards Received

Award Highlight: Cardiac Surgery Excellence Award™ (2022)