Marla Onishi MD

Physician Urgent Care Harvard University Health Services

75 Mount Auburn StHarvard University Health ServicesCambridge, MA 02138
Phone+1 617-495-2001
Fax+1 617-496-0530

Dr. Onishi is on Doximity

As a Doximity member, you’ll join more than three million U.S. healthcare professionals—including 85+% of physicians, and 2/3 of all NPs and PAs—in a private, secure network.

Gain access to free telehealth tools, such as our “call shielding” and one-way patient texting.
Connect with colleagues in the same hospital or clinic.
Read the latest clinical news, personalized to your specialty.

See Dr. Onishi's full profile Already have an account?

Summary

Dr. Marla Onishi is a Family Medicine specialist based in Cambridge, MA. She completed her medical degree at Weill Cornell Medicine in 1982, followed by a transitional year internship and a residency in Pathology at New York Presbyterian Hospital. She later pursued a residency in Family Medicine at Mayo Clinic College of Medicine and Science, finishing in 2003. Dr. Onishi has been recognized with the CMS Meaningful Use Stage 1 Certification from OpenChart, Point and Click Solutions, Inc. in 2012 and 2014-2015.

Education & Training

Mayo Clinic College of Medicine and Science (Rochester)Residency, Family Medicine, 2000 - 2003
New York Presbyterian Hospital (Cornell Campus)Residency, Pathology-Anatomic and Clinical, 1983 - 1988
New York Presbyterian Hospital (Columbia Campus)Internship, Transitional Year, 1982 - 1983
Weill Cornell MedicineClass of 1982

The following disclaimer is related to board certifications obtained from ABMS®, denoted by the ABMS® logo.

This information is proprietary data maintained in a copyrighted database owned by the American Board of Medical Specialties®. The display and presence of ABMS Data in no way constitutes any affiliation, association with, or endorsement of any advertising, promotion, or sponsorship by ABMS and its affiliates and subsidiaries, the ABMS Member Boards, or ABMS board certified physicians and medical specialists. Copyright 2026 American Board of Medical Specialties®. All rights reserved.

The user is responsible for ensuring that the profile obtained in this directory is the profile of the physician or medical specialist being sought.

A self-designated specialty, subspecialty, or practice area neither implies nor is equivalent to ABMS board certification or the existence of specialized training by or competence of a physician or medical specialist.