Summary

Dr. Mark Byrne is a cardiovascular disease specialist with additional expertise in internal medicine and interventional cardiology. He earned his medical degree from the University of Illinois at Chicago College of Medicine and completed his residency at Stanford University School of Medicine. With 37 years of experience in cardiovascular care, Dr. Byrne brings extensive knowledge to treating complex heart conditions. He is fluent in both English and Spanish.

Dr. Byrne practices at Watsonville Community Hospital and sees patients in Watsonville, California. His clinical focus includes managing high blood pressure and treating hypertensive emergencies in both adult and pediatric patients. He performs diagnostic blood work including complete blood counts and creatinine tests to monitor heart and kidney function. Patients have given Dr. Byrne an average rating of 4.2 out of 5 on Vitals.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.2
  • 37 years of experience
  • speaks English, Spanish
  • Stanford University School Of Medicine
  • 14 written reviews
  • 3 specialties
  • 9 areas of expertise
  • 3 board certifications
  • 1 hospital affiliation
  • 2 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Mark Gerard Byrne has 2 locations

Brennan Medical Clinic

30 Brennan StWatsonville, CA 95076
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
Sat8:00 am - 12:00 pm
SunClosed

Watsonville Community Hospital

75 Nielson StWatsonville, CA 95076

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Dr. Mark Gerard Byrne, MDDr. Hannah Valantine, MDAlan Yeung, MDFrancois Haddad, MD
Cardiovascular DiseaseCardiovascular DiseaseCardiovascular DiseaseCardiovascular Disease
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.2 
4.4 
37 Years of Experience 48 Years of Experience 42 Years of Experience 28 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish Speaks Spanish, Russian Speaks English
Watsonville , CAStanford , CAStanford , CAStanford , CA
Med School: University Of Illinois At Chicago College Of Medicine Med School: St Georges University Of London Med School: Harvard Medical School Med School: Univ De Montreal Fac De Med
Current Profile
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Insurance Plans Accepted by Dr. Mark Gerard Byrne

  • Accepts Medicare
  • Accepts Medicaid

Medical Specialties

Dr. Mark Gerard Byrne has the following 3 specialties

Specialty Expertise

Dr. Mark Gerard Byrne has the following 9 areas of expertise

  • Acute Coronary Syndrome (ACS)
  • Echocardiography
  • Heart Block
  • High Blood Pressure (Hypertension)
  • High Cholesterol (Hypercholesterolemia)
  • Internal Medicine
  • Interventional Cardiology
  • Nuclear Medicine
  • Unstable Angina

Certifications, License, & Education

37 Years Experience

Dr. Mark Gerard Byrne holds an active medical license in the state of California.

Medical License

Medical Doctor with an active medical license in the state of California that expires in 2027.

Education & Training

Residency

Completed their residency at Stanford University School Of Medicine.

Medical School

Graduated from University Of Illinois At Chicago College Of Medicine in 1989.

NPI Number

Dr. Byrne's NPI number is 1962411272.

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Frequently Asked Questions

Where is Dr. Mark Byrne's office located?
Dr. Mark Byrne's office is located at 30 Brennan St, Watsonville, CA, 95076.
Which hospitals is Dr. Mark Byrne affiliated with?
Dr. Mark Byrne is affiliated with Watsonville Community Hospital.
Does Dr. Mark Byrne accept my insurance?
You can see the insurance plans that Dr. Mark Byrne accepts on their Vitals profile.
What languages does Dr. Mark Byrne speak?
Dr. Mark Byrne speaks English and Spanish.
Is Dr. Mark Byrne accepting new patients?
Dr. Mark Byrne is accepting new patients on Vitals. View Dr. Mark Byrne's profile on Vitals to make an appointment.

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