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Dr. Denis Mahar, MD
Cardiology*
Age 62
Dr. Denis Mahar, MD is a Cardiologist in Martinez, CA.
Dr. Denis Mahar, MD
Martinez, CA
Accepting new patients
34 years of experience
Dr. Denis Mahar, MD is a Cardiologist in Martinez, CA.
About Dr. Denis Mahar, MD
Dr. Mahar graduated from
Explains Conditions Well
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Trustworthy
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Low Wait Times
Patients are usually seen in 10 minutes or less.
Friendly Staff
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Easy Scheduling
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Where Dr. Denis Mahar, MD Sees Patients
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Contra Costa Regional Medical Center2500 Alhambra Ave, Martinez, CA 94553
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Contra Costa County2311 Loveridge Rd, Pittsburg, CA 94565
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Office50 Douglas Dr Ste 391, Martinez, CA 94553
What Patients Say
Likelihood to recommend Dr. Mahar
5.0
Based on 1 Reviews
5 Stars (1)
4 Stars (0)
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2 Stars (0)
1 Star (0)
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Patient Reviews
Jul 16, 2025
Dr. Mahar is an excellent cardiologist. I have been under his care for over a year now and have never felt uneasy or a lack of confidence in him. He is professional, an expert at what he does, and is a kind man. I would recommend him to my own mother.
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Meet Dr. Denis Mahar, MD
Specialties*
Cardiology
- *Sharecare does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
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FAQs About Dr. Mahar's Practice
A list of accepted insurance providers is available on the Sharecare insurance check. It is always a good idea to verify your insurance when making an appointment.
New patients are generally accepted by Dr. Denis Mahar, MD. To arrange an appointment, call the number on Dr. Mahar's profile.
Dr. Mahar in specializes in Cardiology. See more on Sharecare.
Dr. Mahar frequently treats the following conditions: Cardiomyopathy, Dilated. See more on Sharecare.
Dr. Mahar's office is located at 2500 Alhambra Ave Martinez, CA 94553. You can find other locations and directions on Sharecare.
Dr. Mahar provides telehealth services. Please contact the office to determine whether you are eligible.
Dr. Denis Mahar, MD is affiliated with Contra Costa Regional Medical Center.
Yes, Dr. Denis Mahar, MD holds board certification in Cardiovascular Disease.
Dr. Denis Mahar, MD has a star rating of 5.0/5. See more patient feedback on Sharecare.
Training & Medical Education
Medical Education
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Loyola University Chicago Stritch School of Medicine
1992
Board Certifications
- Cardiovascular Disease
Hospitals Where Dr. Denis Mahar, MD Practices
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Contra Costa Regional Medical Center
2500 Alhambra Ave, Martinez, CA
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