Cardiologists near you

Cardiologist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.

  1. Atlanta, GA
  2. Baltimore, MD
  3. Chicago, IL
  4. Dallas, TX
  5. Denver, CO
  6. Detroit, MI
  7. Houston, TX
  8. Los Angeles, CA
  9. Miami, FL
  10. New York, NY
  11. Orlando, FL
  12. Philadelphia, PA
  13. Phoenix, AZ
  14. Riverside, CA
  15. San Antonio, TX
  16. San Diego, CA
  17. San Francisco, CA
  18. Seattle, WA
  19. St. Louis, MO
  20. Tampa, FL
  21. Washington, DC

Chiropractors near you

Chiropractor providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.

  1. Atlanta, GA
  2. Baltimore, MD
  3. Boston, MA
  4. Charlotte, NC
  5. Chicago, IL
  6. Dallas, TX
  7. Denver, CO
  8. Detroit, MI
  9. Houston, TX
  10. Los Angeles, CA
  11. Miami, FL
  12. Minneapolis, MN
  13. New York, NY
  14. Orlando, FL
  15. Philadelphia, PA
  16. Phoenix, AZ
  17. Riverside, CA
  18. San Antonio, TX
  19. San Diego, CA
  20. San Francisco, CA
  21. Seattle, WA
  22. St. Louis, MO
  23. Tampa, FL
  24. Washington, DC

Dentists near you

Dentist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.

  1. Atlanta, GA
  2. Baltimore, MD
  3. Boston, MA
  4. Charlotte, NC
  5. Chicago, IL
  6. Dallas, TX
  7. Denver, CO
  8. Detroit, MI
  9. Houston, TX
  10. Los Angeles, CA
  11. Miami, FL
  12. Minneapolis, MN
  13. New York, NY
  14. Orlando, FL
  15. Philadelphia, PA
  16. Phoenix, AZ
  17. Riverside, CA
  18. San Antonio, TX
  19. San Diego, CA
  20. San Francisco, CA
  21. Seattle, WA
  22. St. Louis, MO
  23. Tampa, FL
  24. Washington, DC

Dermatologists near you

Dermatologist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.

  1. Atlanta, GA
  2. Baltimore, MD
  3. Boston, MA
  4. Charlotte, NC
  5. Chicago, IL
  6. Dallas, TX
  7. Denver, CO
  8. Detroit, MI
  9. Houston, TX
  10. Los Angeles, CA
  11. Miami, FL
  12. Minneapolis, MN
  13. New York, NY
  14. Orlando, FL
  15. Philadelphia, PA
  16. Phoenix, AZ
  17. Riverside, CA
  18. San Antonio, TX
  19. San Diego, CA
  20. San Francisco, CA
  21. St. Louis, MO
  22. Tampa, FL
  23. Washington, DC

Family Physicians near you

Family Physician providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.

  1. Atlanta, GA
  2. Baltimore, MD
  3. Boston, MA
  4. Charlotte, NC
  5. Chicago, IL
  6. Dallas, TX
  7. Denver, CO
  8. Detroit, MI
  9. Houston, TX
  10. Los Angeles, CA
  11. Miami, FL
  12. Minneapolis, MN
  13. New York, NY
  14. Orlando, FL
  15. Philadelphia, PA
  16. Phoenix, AZ
  17. Riverside, CA
  18. San Antonio, TX
  19. San Diego, CA
  20. San Francisco, CA
  21. Seattle, WA
  22. St. Louis, MO
  23. Tampa, FL
  24. Washington, DC

OB-GYNs near you

OB-GYN providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.

  1. Atlanta, GA
  2. Baltimore, MD
  3. Boston, MA
  4. Charlotte, NC
  5. Chicago, IL
  6. Dallas, TX
  7. Denver, CO
  8. Detroit, MI
  9. Houston, TX
  10. Los Angeles, CA
  11. Miami, FL
  12. New York, NY
  13. Orlando, FL
  14. Philadelphia, PA
  15. Phoenix, AZ
  16. Riverside, CA
  17. San Antonio, TX
  18. San Diego, CA
  19. San Francisco, CA
  20. Seattle, WA
  21. St. Louis, MO
  22. Tampa, FL
  23. Washington, DC

Ophthalmologists near you

Ophthalmologist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.

  1. Atlanta, GA
  2. Baltimore, MD
  3. Charlotte, NC
  4. Chicago, IL
  5. Dallas, TX
  6. Denver, CO
  7. Detroit, MI
  8. Houston, TX
  9. Los Angeles, CA
  10. Miami, FL
  11. Minneapolis, MN
  12. New York, NY
  13. Orlando, FL
  14. Philadelphia, PA
  15. Phoenix, AZ
  16. Riverside, CA
  17. San Diego, CA
  18. San Francisco, CA
  19. St. Louis, MO
  20. Tampa, FL
  21. Washington, DC

Orthopedic Surgeons near you

Orthopedic Surgeon providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.

  1. Atlanta, GA
  2. Baltimore, MD
  3. Boston, MA
  4. Charlotte, NC
  5. Chicago, IL
  6. Dallas, TX
  7. Denver, CO
  8. Detroit, MI
  9. Houston, TX
  10. Los Angeles, CA
  11. Miami, FL
  12. New York, NY
  13. Orlando, FL
  14. Philadelphia, PA
  15. Phoenix, AZ
  16. Riverside, CA
  17. San Antonio, TX
  18. San Diego, CA
  19. San Francisco, CA
  20. Seattle, WA
  21. St. Louis, MO
  22. Tampa, FL
  23. Washington, DC

Pediatricians near you

Pediatrician providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.

  1. Atlanta, GA
  2. Baltimore, MD
  3. Boston, MA
  4. Charlotte, NC
  5. Chicago, IL
  6. Dallas, TX
  7. Denver, CO
  8. Detroit, MI
  9. Houston, TX
  10. Los Angeles, CA
  11. Miami, FL
  12. Minneapolis, MN
  13. New York, NY
  14. Orlando, FL
  15. Philadelphia, PA
  16. Phoenix, AZ
  17. Riverside, CA
  18. San Antonio, TX
  19. San Diego, CA
  20. San Francisco, CA
  21. Seattle, WA
  22. St. Louis, MO
  23. Tampa, FL
  24. Washington, DC

Physical Therapists near you

Physical Therapist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.

  1. Atlanta, GA
  2. Baltimore, MD
  3. Boston, MA
  4. Charlotte, NC
  5. Chicago, IL
  6. Dallas, TX
  7. Denver, CO
  8. Detroit, MI
  9. Houston, TX
  10. Los Angeles, CA
  11. Miami, FL
  12. Minneapolis, MN
  13. New York, NY
  14. Orlando, FL
  15. Philadelphia, PA
  16. Phoenix, AZ
  17. Riverside, CA
  18. San Antonio, TX
  19. San Diego, CA
  20. San Francisco, CA
  21. Seattle, WA
  22. St. Louis, MO
  23. Tampa, FL
  24. Washington, DC

Podiatrists near you

Podiatrist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.

  1. Atlanta, GA
  2. Baltimore, MD
  3. Boston, MA
  4. Charlotte, NC
  5. Chicago, IL
  6. Dallas, TX
  7. Denver, CO
  8. Detroit, MI
  9. Houston, TX
  10. Los Angeles, CA
  11. Miami, FL
  12. New York, NY
  13. Orlando, FL
  14. Philadelphia, PA
  15. Phoenix, AZ
  16. Riverside, CA
  17. San Antonio, TX
  18. San Diego, CA
  19. San Francisco, CA
  20. Seattle, WA
  21. St. Louis, MO
  22. Tampa, FL
  23. Washington, DC

Psychiatrists near you

Psychiatrist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.

  1. Atlanta, GA
  2. Baltimore, MD
  3. Boston, MA
  4. Charlotte, NC
  5. Chicago, IL
  6. Dallas, TX
  7. Denver, CO
  8. Detroit, MI
  9. Houston, TX
  10. Los Angeles, CA
  11. Miami, FL
  12. Minneapolis, MN
  13. New York, NY
  14. Orlando, FL
  15. Philadelphia, PA
  16. Phoenix, AZ
  17. Riverside, CA
  18. San Antonio, TX
  19. San Diego, CA
  20. San Francisco, CA
  21. Seattle, WA
  22. St. Louis, MO
  23. Tampa, FL
  24. Washington, DC
Dr. Matthew Ostrom, MD, Clinical Cardiac Electrophysiologist

Dr. Matthew Ostrom, MD

Clinical Cardiac Electrophysiologist

2841 Lomita Blvd
100
Torrance, CA 90505

+3 more locations

Overall rating

Top reviews

Dr. Kwan, Is a proactive and caring physician who puts his patients first and makes you feel like you’re his only patient. He will spend any amount of time addressing the patient’s needs and concerns in a friendly and supportive mShow moreanner. I’d recommend him at the highest level.

William S. • February 03, 2026

Everyone, from check-in, to the techs, and of course, Dr. Ostrum- all of you deserve 5 gold stars each. Thank you for making this visit a positive one for both my Dad (the patient) and I.

Robert B. • February 21, 2026

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Dr. Matthew Ostrom, MD?


About Dr. Matthew Ostrom, MD

A triple diplomate of the American Board of Internal Medicine, Matthew Ostrom, MD, is board-certified in clinical cardiac electrophysiology, cardiovascular disease, nuclear cardiology, and internal medicine. Dr. Ostrom, who has more than 15 years of experience, serves the Los Angeles communities of Torrance and Redondo Beach, California, at COR Healthcare Medical Associates.

Born and raised in Seattle, Dr. Ostrom received his Bachelor of Science in microbiology from the University of Washington in 1999. Throughout his undergraduate studies, Dr. Ostrom was actively involved in cardiovascular research at the university and at the local biotechnology company ZymoGenetics, Inc.

Shortly after graduating, Dr. Ostrom began his medical studies at Loyola University Chicago Stritch School of Medicine. He completed an internal medicine internship and residency through the University of California, Los Angeles (UCLA) system. In addition, Dr. Ostrom pursued cardiology and electrophysiology fellowships at Harbor-UCLA Medical Center in West Carson, California, and at Kaiser Permanente Los Angeles Medical Center in Los Angeles. He is a fellow of the American College of Cardiology and the Heart Rhythm Society. 

Today, Dr. Ostrom is a practicing electrophysiologist, specializing in catheter and device-based therapies in the treatment of complex arrhythmias, syncope, sudden cardiac death, and heart failure.

His research interests include the ablation of complex arrhythmias and device-based treatments for sudden cardiac death and congestive heart failure. Dr. Ostrom has authored or co-authored numerous articles in peer-reviewed cardiology and electrophysiology journals.

In addition to his work at COR Healthcare Medical Associates, Dr. Ostrom is on staff at Providence Little Company of Mary Medical Center and Torrance Memorial Medical Center.

Away from work, Dr. Ostrom loves spending time outdoors with his wife and children.


Services, Conditions and Procedures

Ablation

Anticoagulation Management

Cardiac Preoperative Clearance

Cardiac Risk Testing

Cardiac Stent

Cardio-Oncology

Cardiology Diagnostic Testing

Carotid Ultrasound

Chest Pain

Chronic Total Occlusion (CTO)

Congestive Heart Failure (CHF)

Echocardiography

Electrophysiology

Heart Attack

Heart Disease Treatment

High Cholesterol

Hypertension

Imaging

Peripheral Artery Disease

Research Studies

Stress Test

Structural & Valvular Heart Disease

Supraventricular Tachycardia

Vascular Ultrasound

Wellness Exams


Locations (4)

COR Healthcare Medical Associates

855 Manhattan Beach Blvd
101
Manhattan Beach, CA, 90266

520 N. Prospect Ave.
Ste. 300
Redondo Beach, CA, 90277

2841 Lomita Blvd
100
Torrance, CA, 90505

1360 W. 6th St.
Ste. 315 North Building
San Pedro, CA, 90732


More About Dr. Matthew Ostrom, MD


Reviews

4.88
426 Reviews

Dr. Ostrum is a serious top-notch cardiologist. As A physician myself, I would trust him With my heart care completely!

Paul W. • March 28, 2026

Very nice, smart, efficient, confident ! Wonderful heart doctor !

Maura F. • February 26, 2026

Everyone, from check-in, to the techs, and of course, Dr. Ostrum- all of you deserve 5 gold stars each. Thank you for making this visit a positive one for both my Dad (the patient) and I.

Robert B. • February 21, 2026

Good visit ! Excellent care

Carl S. • February 13, 2026

Dr. Kwan answered all my questions, made excellent suggestions and was generous with his time.

Daniel L. • February 04, 2026

Dr. Kwan, Is a proactive and caring physician who puts his patients first and makes you feel like you’re his only patient. He will spend any amount of time addressing the patient’s needs and concerns in a friendly and supportive manner. I’d recommend him at the highest level.

William S. • February 03, 2026

Friendly bedside manner and cares about my well being.

Jonathon A. • January 07, 2026

Dr. Is very good at what he does, I have always had good results under his care. He is very professional, and nice too!

David T. • December 10, 2025

Dr. Ostrum was thorough, asked pertinent questions, listened well, and provided clear information while being personable and thoughtful.

Rodger Y. • December 04, 2025

excellent

Leonard G. • November 25, 2025

It was efficient and very thorough

Fredric H. • November 21, 2025

great

Bertil W. • November 06, 2025

On time. Good helpful feedback.

John M. • October 31, 2025

Listens and answers concerns.

Kurt S. • October 29, 2025

The COR healthcare is efficiently run and the staff pleasant. The doctor is on top of his game.

John G. • August 08, 2025

Wonderful, caring Dr. who answers your questions and concerns.

Audrey K. • July 26, 2025

Dr. Ostrom is an incredible doctor and wonderful person. So blessed to be under his care.

Guy G. • July 17, 2025

Dr. Ostrom is the best. He did my ablation my afib has been under control since. Appointments on time and very professional.

Robert S. • July 17, 2025

Doctor Kwan was very patient and understanding of my needs. He was very knowledgeable in medication and in treating me. I would highly recommend Doctor Kwan as your cardiologist.

David K. • July 01, 2025

On time, friendly, professional, great listener, helpful, not rushing me out of there, answered all questions.

James D. • June 24, 2025

Fine

Richard G. • May 31, 2025

in and out of the appt. Dr. Ostrom answered all my questions and filled me in on all the details. Dude is super knowledgeable and understanding.

Richard R. • April 17, 2025

Dr Ostrom is great. Very personable. Explains every thing in detail. Listens to patient comments. Answers questions clearly. Shows a very caring attitude.

John S. • April 12, 2025

Dr. Ostrom always gets back to me right away.

Melinda E. • April 10, 2025

Dr Ostrom listens and gives good advice. We are fortunate to have him as our cardiologist.

Marilyn N. • April 06, 2025

As usual, Dr. Ostrom was professional, respectful and receptive to my concerns. As I've been his patient for three years, I've always regarded Dr. Ostrom in high regard and would definitely refer family / friends if given the opportunity.

Scott C. • April 05, 2025

Dr. Ostrom always takes the time to listen to my concerns. We discuss the options for my medical care, and he and I make our decisions together. He is very encouraging and caring.

Connie C. • March 27, 2025

The doctor was very direct and to the point like always. Asking common sense questions about my health and activities. The office staff is always friendly and helpful when asking questions.

Thomas K. • March 26, 2025

Dr. Patron was very professional and clear in his assessments. We talked about possible procedures that might be considered.

Jane G. • March 20, 2025

Having Dr Orstrom as my doctor all these years has, in my opinion, helped prolong my life and for that I am greatful. It is always a great experience when I visit the COR Group in Torrance.

Dennis S. • March 14, 2025

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