Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Martha E. Hierro, MD

Individual provider Gastroenterology Physician · NPI 1770562431

Dr. Martha E. Hierro, MD is a Gastroenterology in Santa Monica, California. Graduated from University of California, Geffen School of Medicine in 1987, 39 years ago. Accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
39
Trained at
University of California, Geffen School of Medicine
Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

2021 Santa Monica Blvd Ste 335E
Santa Monica, CA 90404-2146
Phone: (310) 471-9917
Fax: (310) 319-2468
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence G65495 (CA)

Record details

NPI number1770562431
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 11, 2006
Last updated in NPPESAugust 25, 2020
Certification dateAugust 25, 2020

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGASTROENTEROLOGY
Medical schoolUNIVERSITY OF CALIFORNIA, GEFFEN SCHOOL OF MEDICINE
Graduated 1987 (39 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Santa Monica