> > > > Dr. Martha Hierro, MD
Dr. Martha Elva Hierro MD is a female Internist, has 23 years of experience and practices in Internal Medicine, Gastroenterology, Surgery, Thoracic Surgery, and Cardiothoracic Vascular Surgery.
Dr. Martha Hierro has 2 office locations.
Southern California Medical Gastroenterology Group Inc.
1301 20th St
Ste 280
Mid-City, Santa Monica, CA 90404

Phone Number
Locations and availability (2)
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

  • Currently 2 of 4 stars
Patient comments (6)

The overall average patient rating of Dr. Martha Hierro is Satisfactory. Dr. Hierro has been reviewed by 10 patients who have provided 6 comments. The rating is 2 out of 4 stars.

Patient Ratings
Ease of Appointment 2.0
  • Currently 2 of 4 stars
Promptness 1.8
  • Currently 1.8 of 4 stars
Courteous Staff 2.0
  • Currently 2 of 4 stars
Accurate Diagnosis 2.4
  • Currently 2.375 of 4 stars
Bedside Manner 2.5
  • Currently 2.5 of 4 stars
Spends Time with Me 2.6
  • Currently 2.5555555555556 of 4 stars
Follows Up After Visit 2.0
  • Currently 2 of 4 stars

Specialties & Research

  • She has special expertise in 1 area:
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)

Education & Awards

Dr. Hierro graduated from University of California at Los Angeles.


Dr. Hierro has 8 hospital affiliations:

  • Santa Monica - UCLA Medical Center 
  • St. John's Hospital & Health Center 

Accepted Insurance Plans

Dr. Hierro accepts these health insurances in at least one office:

  • United Healthcare - 2 plans
  • Blue Shield of California - 93 plans
  • Unicare - 2 plans
  • Anthem Blue Cross - 2 plans
  • Humana - 9 plans
  • Cigna - 3 plans
  • USA H & W Network - 1 plan
  • Aetna - 3 plans


  • French

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Additional Information
Where does Dr. Martha E. Hierro practice?
Dr. Martha Hierro practices Internal Medicine, Gastroenterology, Surgery, Thoracic Surgery, and Cardiothoracic Vascular Surgery near Santa Monica, CA.
See Santa Monica Internists, Santa Monica Gastroenterologists, Santa Monica Surgeons, and Santa Monica Cardiothoracic Surgeons.