Merrill Marshall Ahrens MD

Physician

1600 NE Broadway StPortland, OR 97232
Phone+1 503-397-0471
Fax+1 503-413-4470

Dr. Ahrens 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. Ahrens' full profile Already have an account?

Education & Training

MaineHealthResidency, Internal Medicine, 1989 - 1992
Northwestern University The Feinberg School of MedicineClass of 1989

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.

Certifications & Licensure

OR State Medical License 1992 - 2027
WA State Medical License 1992 - 2000
ME State Medical License Active through 1992
American Board of Internal Medicine Internal Medicine

Awards, Honors, & Recognition

CMS Meaningful Use Stage 2 Certification HealthSentry, Cerner Corporation, 2017
CMS Meaningful Use Stage 2 Certification EpicCare Ambulatory 2014 Certified EHR Suite, Epic Systems Corporation, 2017
Physician Practice Connections Recognition Program National Committee for Quality Assurance, 2012-2015

Viewing the full profile is available to verified healthcare professionals only.

Find your profile and take control of your online presence:

Similar Physicians & HCPs

Paul Donnan, MD
IMPortland, OR
Leslie Root, MD
IMPortland, OR
Sheila Jhansale, MD
IMPortland, OR
Homer Chin, MD
IMPortland, OR
Andrew Harbison, MD
IMPortland, OR
Andrew Lum, MD
IMPortland, OR
Wiley Chan, MD
IMPortland, OR
Barbara Caffaratti, MD
IMPortland, OR
Katherine Dahlke, MD
IMPortland, OR
Zarya Rubin, MD
IMPortland, OR

Doximity / States / Oregon / Portland / Merrill Ahrens, MD

Dr. Merrill Ahrens, Dr. Merrill Ahrens, MD, Dr. M Ahrens, Dr. Merrill Marshall Ahrens