Browse Health
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).

Learn more about Dr. Merrill Ahrens:

View the full profile to get information on:

  1. Qualifications
  2. What's important to you

View full profile

Patient Reviews

Patient comments (3)

The overall average patient rating of Dr. Merrill Ahrens is Excellent. Dr. Ahrens has been reviewed by 6 patients who have provided 3 comments. The rating is 5 out of 5 stars.

Patient Ratings
Ease of Appointment 5.0
Promptness 5.0
Courteous Staff 4.3
Accurate Diagnosis 5.0
Bedside Manner 5.0
Spends Time with Me 5.0
Follows Up After Visit 5.0

Specialties & Research

Dr. Merrill Ahrens, MD is board certified in Internal Medicine.

Education & Awards

Dr. Ahrens graduated from Northwestern University, Chicago. He has 4 awards.

Patients' Choice Award (2008 - 2009)
Compassionate Doctor Recognition (2014)
Bridges to Excellence Recognition
Bridges to Excellence Medical Home Recognition (2012 - 2015)
Level III
NCQA Physician Practice Connections - Patient Centered Medical Home (2012 - 2015)


Dr. Ahrens has 1 hospital affiliations:

  • Kaiser Sunnyside Medical Center 


  • English

> > > > Dr. Merrill Ahrens, MD

Similar doctors nearby

Dr. Wijan Prapong

Internal Medicine
5 years experience
Portland, OR

Dr. Gregory Rubin

Internal Medicine
7 years experience
Portland, OR

Dr. Brian Gould

Internal Medicine
8 years experience
Portland, OR

Dr. Thomas Beaver

Internal Medicine
29 years experience
Portland, OR

Dr. Joel Simasko

Internal Medicine
31 years experience
Portland, OR

Dr. Benjamin Brody

Internal Medicine
12 years experience
Portland, OR
Search All Similar Doctors
Additional Information
Dr. Merrill Marshall Ahrens MD is a male Internist, has 22 years of experience and practices in Internal Medicine.
Where does Dr. Merrill M. Ahrens practice?
Dr. Merrill Ahrens has 1 office location.
Dr. Merrill Ahrens practices Internal Medicine near Portland, OR.
See Portland Internists.