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Dr. Robert Lock, MD

Dr. Robert Lock, MD

Age 66 Interventional Cardiology M
(19) 19 reviews


Dr. Robert Lock, MD is a interventional cardiology specialist in Eureka, CA. Dr. Lock completed a residency at Stanford University. He currently practices at ROBERT JOSEPH LOCK MD and is affiliated with Saint Joseph Hospital. He accepts multiple insurance plans. Dr. Lock is board certified in Cardiovascular Disease.


  • University of California Davis Medical Center, Fellowship Hospital — 1988
  • Stanford University, Residency Hospital — 1984
  • Stanford University, Internship Hospital — 1983
  • University of California School of Medicine - Irvine, Medical School — 1982

Insurance Accepted

  • Anthem
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of California
  • CareFirst Blue Cross Blue Shield
  • Cigna
  • First Health (Coventry Health Care)

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  1. Robert Joseph Lock MD

    1. 1
      Robert Joseph Lock MD
      2535 Harrison Ave, Eureka, CA 95501 Existing Patients: (707) 268-8718

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Dr. Lock saved my life and I am eternally grateful. I think I got the best Dr. for Heart issues here in this area and consider myself very fortunate. I recommend him all the time, any time I know of someone looking for a Heart Doctor here in this area, because he knows how, and does the work that needs to be done. He is cautious and caring.
— May 28, 2019
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Dr. Robert Lock, MD
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Frequently Asked Questions

Dr. Lock frequently treats Cardiac Electrical System Procedures.  

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Hospital Affiliations

  • Saint Joseph Hospital