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Dr. Michael Louthan, MD

Dr. Michael Louthan, MD

Emergency Medicine*

Dr. Michael Louthan, MD is an emergency medicine specialist in Upland, CA. He is affiliated with medical facilities Riverside Community Hospital and San Antonio Regional Hospital.

Practice

999 San Bernardino Rd Upland, CA 91786

Make an Appointment

(909) 920-4747

At a Glance

  • Area of Expertise
    Dr. Louthan specializes in the area of Emergency Medicine. • See board certifications
  • Practices at Top Hospital
    America’s 50 Best Hospitals for Surgical Excellence Award™ • See hospitals
  • Practices at Highly Recommended Hospital
    Patients recommend this hospital to family and friends. • See hospitals
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Dr. Louthan's Reviews

Know Before You Go

About Me

biography

Dr. Michael Louthan, MD is an emergency medicine specialist in Upland, CA. He is affiliated with medical facilities Riverside Community Hospital and San Antonio Regional Hospital.

  • Emergency Medicine

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

American Board of Medical Specialties®
American Board of Emergency Medicine®
- 
Emergency Medicine
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.

Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.

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Locations

Practice

San Antonio Regional Hospital999 San Bernardino Rd Upland, CA 91786
1
Riverside Community Hospital4445 Magnolia Ave Riverside, CA 92501
2
Sierra San Antonio Medical Corporation16465 Sierra Lakes Pkwy Ste 100 Fontana, CA 92336
3
Alliance Healthcare Services Inc7777 Milliken Ave Rancho Cucamonga, CA 91730
4

Affiliated Hospitals

  • San Antonio Regional Hospital

    999 San Bernardino Rd
    Upland, CA 91786

    How patients felt about the care they received at this hospital.

    85%
    Patients said they were given information about recovering at home

    1% higher than the national average

    75%
    Patients said that nurses always listened to them and explained things well
    View all patient feedback

  • Riverside Community Hospital

    4445 Magnolia Ave
    Riverside, CA 92501
    Recipient of 29
    hospital awards

    America’s 50 Best Hospitals for Surgical Excellence Award™ (2025)

    Top 5% in the nation for consistently delivering clinical quality

    America's 250 Best Hospitals Award™ (2025, 2024, 2023)

    Top 5% in the nation for consistently delivering clinical quality

    View all awards

    How patients felt about the care they received at this hospital.

    79%
    Patients said they were given information about recovering at home

    5% lower than the national average

    70%
    Patients said that doctors always listened to them and explained things well

    6% lower than the national average

    View all patient feedback
Learn more about how Healthgrades measures Hospital Quality