John Duncan Marshall MD

Physician

3811 E Bell RdSte 107Phoenix, AZ 85032
Phone+1 602-482-6100
Fax+1 602-992-6424

Join 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.
You already have 25 invites waiting!
Read the latest clinical news, personalized to your specialty.

Join Doximity Already have an account?

Summary

Dr. John Marshall, MD is a family physician in Phoenix, Arizona. He is currently licensed to practice medicine in Arizona, Maryland, and Pennsylvania. He is affiliated with Abrazo Scottsdale Campus and HonorHealth John C. Lincoln Medical Center.

Education & Training

University of Toronto Faculty of MedicineClass of 1977

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.