Dr. Raul Marquez, MD

Critical Care MedicineMaleAge 52

Critical Care Medicine

Dr. Raul Marquez, MD is a Critical Care Medicine Specialist in Mission Viejo, CA and has over 25 years of experience in the medical field. He graduated from Tufts University School Of Medicine medical school in 1997. He is affiliated with Providence Mission Hospital Mission Viejo. His office accepts new patients.

Dr. Raul Marquez, MD

Mission Heritage Medical Group

26800 Crown Valley Pkwy Ste 315 Mission Viejo, CA 92691 ()
Accepting new patients

Make an Appointment

(949) 364-6000

Accepting new patients

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At a Glance

  • Practices at Top Hospital
    America's 250 Best Hospitals Award™ See hospitals
  • Hospital Satisfaction
    Patients said they were highly satisfied at this doctor's hospital. See hospitals

Experience and Background Checks


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

Experience Check

Check if Dr. Marquez treats your condition or procedure

Dr. Marquez's conditions and procedures:

  • Acidosis
  • Acute Bronchitis
  • Acute Lower Respiratory Infection
  • Acute Pharyngitis
  • Acute Upper Respiratory Infection
  • Alkalosis
  • Anal and Rectal Cancer
  • Appendicitis
  • Arterial Blood Gas Test (ABG)
  • Asbestosis
  • Asthma
  • Barrett's Esophagus
  • Benign Neoplasm of the Digestive System
  • Breast Cancer
  • Bronchiectasis
  • Bronchiolitis
  • Bronchitis
  • Bronchoscopy
  • Cholecystitis and Gallstones
  • Chronic Pulmonary Heart Diseases (incl. Pulmonary Hypertension)
  • Collapsed Lung (Pneumothorax)
  • Colorectal Cancer
  • COPD (Chronic Obstructive Pulmonary Disease)
  • Cough
  • Crohn's Disease
  • Cryptococcosis
  • Cystic Fibrosis
  • Diaphragmatic and-or Hiatal Hernia
  • Emphysema
  • Empyema
  • Esophageal Varices
  • Gallstones
  • Gastric Ulcer
  • Hemorrhoids
  • Hiatal Hernia
  • Hypersensitivity Pneumonitis
  • Ileus
  • Inflammatory Bowel Disease
  • Influenza (Flu)
  • Interstitial Lung Disease
  • Intestinal Obstruction
  • Lipomas
  • Low Blood Oxygen Level
  • Lung Abscess
  • Lung Cancer
  • Lung Nodule
  • Mycobacterial Lung Infection
  • Neuroendocrine Tumors
  • Osteosarcoma
  • Pancreatic Cancer
  • Partial Lung Collapse
  • Peptic Ulcer
  • Peripheral Arterial Aneurysm
  • Peripheral Arterial Aneurysm and Dissection
  • Peripheral Arterial Embolism and Thrombosis
  • Peripheral Vascular Disease (PAD, PVD)
  • Pleural Effusion
  • Pneumoconiosis and Pneumonopathy
  • Pneumonia
  • Pneumonitis (Due to Solids or Liquids)
  • Primary Pulmonary Hypertension
  • Pulmonary Edema
  • Pulmonary Embolism
  • Pulmonary Eosinophilia
  • Pulmonary Hypertension
  • Pulmonary Rehabilitation Services
  • Pyloric Stenosis
  • Respiratory Failure
  • Respiratory Management
  • Rib Fracture
  • Ruptured Aortic Aneurysm
  • Sarcoidosis
  • Secondary Malignancies
  • Shortness of Breath
  • Sleep Apnea
  • Small Intestine Cancer
  • Smoking Cessation Counseling
  • Soft Tissue Sarcoma
  • Stomach and Small Intestine Cancer
  • Swine Flu
  • Systemic Sclerosis
  • Thoracentesis
  • Traumatic Brain Injury
  • Tuberculosis
  • Ulcerative Colitis
  • Valley Fever
  • Viral Infection
  • Wheezing

Insurance Check

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Dr. Marquez accepts

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

(949) 364-6000

Dr. Marquez accepts the following insurance:

Aetna HMO
Choice Plus POS II
Blue Cross Blue Shield
Blue Card PPO
Blue Cross Blue Shield of California
Blue Cross Blue Shield of California PPO
Select Plus HMO
Blue Shield of California
Access Plus Savenet
Local Access Plus HMO
CareFirst Blue Cross Blue Shield
HealthyBlue 2.0
HealthyBlue Advantage
Cigna HMO
Cigna PPO
Open Access Plus
First Health (Coventry Health Care)
First Health (Coventry Health Care) PPO
MultiPlan PPO

Dr. Marquez's Reviews

Likelihood to recommend Dr. Marquez


Based on 9 ratings

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RecentHighestLowestMost Helpful
He does not pay attention. His staff is out of control. And this is. Basically the culture of your organization
2 people found this helpful
Jul 10, 2019
Thank you for your time and for the opportunity...Read More
×Post a ResponseAre you Dr. Raul Marquez, MD?
Excellent physician. Very bright. Answers all questions. Spends time as necessary. Makes appropriate referrals. Goes above and beyond. Empathic and caring. Listens to patient concerns and is supportive.
1 person found this helpful
Mar 09, 2019
×Post a ResponseAre you Dr. Raul Marquez, MD?
Dr. misdiagnosed me with asthma. Prescribed a medication that is used for COPD at twice the recommended dosage. Ended up with cough and hacking up mucus for 3 days because of a bad reaction to the med that I didn't even need. He directed his medical assistant to order a ct scan but she ordered an x-ray instead, and then berated me for getting the wrong test. Would not admit to the mistake. Saw a different pulmonologist who said I do not have either asthma or COPD.
What went well
  • Office environment
What could be improved
  • Difficult to schedule appointment
  • Staff wasn't friendly
  • Long wait times
  • Appointment was rushed
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Didn't trust the provider's decisions
4 people found this helpful
May 17, 2018
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About Me


Dr. Raul Marquez, MD is a Critical Care Medicine Specialist in Mission Viejo, CA and has over 25 years of experience in the medical field. He graduated...Read more


  • Critical Care Medicine
  • Pulmonary Disease

Board Certifications


Residency Hospital
Tufts University School Of Medicine
Medical School


Frequently Asked Questions

Is Dr. Raul Marquez, MD accepting new patients?

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

Does Dr. Raul Marquez, MD accept my insurance?

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

What are Dr. Raul Marquez, MD's top areas of care?

Dr. Marquez frequently treats COPD (Chronic Obstructive Pulmonary Disease), Partial Lung Collapse, and Asthma. See all procedures and conditions Dr. Marquez treats.

Where is Dr. Raul Marquez, MD's office located?

Dr. Marquez's office is located at 26800 Crown Valley Pkwy Ste 315, Mission Viejo, CA 92691. Find other locations and directions on Healthgrades.

Does Dr. Raul Marquez, MD offer telehealth services?

Dr. Marquez has not yet indicated whether they offer telehealth services. Please contact the office to check for availability/eligibility.

How can I make an appointment with Dr. Raul Marquez, MD?

Find contact information here to make an appointment.


Mission Heritage Medical Group

Mission Heritage Medical Group26800 Crown Valley Pkwy Ste 315 Mission Viejo, CA 92691

Affiliated Hospitals

Dr. Marquez is affiliated with the following hospital. Select the hospital below to learn more.

Learn more about how Healthgrades measuresHospital Quality.

Providence Mission Hospital Mission Viejo

Mission Viejo, CA

79% Patients that would definitely recommend, 9% higher than the national average

12 Awards Received

Award Highlight: America's 250 Best Hospitals Award™ (2020)