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License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Patient Reviews

Patient comments (2)

The overall average patient rating of Dr. Mark Nathan is Excellent. Dr. Nathan has been reviewed by 8 patients who have provided 2 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.0
Promptness 4.0
Courteous Staff 5.0
Accurate Diagnosis 5.0
Bedside Manner 5.0
Spends Time with Me 5.0
Follows Up After Visit 5.0

Specialties & Research

Dr. Mark Nathan, MD is board certified in Cardiovascular Disease.

  • He has special expertise in 9 areas:
  • Acute Coronary Syndrome (ACS)
  • Cholesterol Management
  • Electrocardiography (EKG)
  • Heart Block
  • Heart Catheterization
  • High Blood Pressure (Hypertension)
  • High Cholesterol (Hypercholesterolemia)
  • Stress Testing
  • Unstable Angina

Education & Awards

Dr. Nathan graduated from Brown University, Providence. He has 1 awards.

Castle Connolly's Top Doctors™ (2012 - 2013)


Dr. Nathan has 14 hospital affiliations:

  • John Muir Medical Center, Walnut Creek Campus 
  • Alta Bates Summit Medical Center- Summit Campus 

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Additional Information
Dr. Mark D Nathan MD is a male Internist, has 36 years of experience and practices in Cardiovascular Disease.
Where does Dr. Mark D. Nathan practice?
Dr. Mark Nathan has 1 office location.
Dr. Mark Nathan practices Cardiovascular Disease near Walnut Creek, CA.
See Walnut Creek Cardiologists.