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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).

Patient Reviews

Patient comments (0)

The overall average patient rating of Dr. David Maslen is Excellent. Dr. Maslen has been reviewed by 5 patients who have provided 0 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.7
Promptness 4.7
Courteous Staff 4.7
Accurate Diagnosis 4.0
Bedside Manner 4.3
Spends Time with Me 5.0
Follows Up After Visit 5.0

Specialties & Research

Dr. David Maslen, MD is board certified in Internal Medicine.

  • He has special expertise in 2 areas:
  • Adolescent Medicine
  • Gynecology

Education & Awards

Dr. Maslen graduated from Universitaet Hamburg. He has 2 awards.

Patients' Choice Award (2012)
Compassionate Doctor Recognition (2012, 2014)


Dr. Maslen has 5 hospital affiliations:

  • Providence Portland Medical Center 
  • Adventist Medical Center 


  • English

> > > > Dr. David Maslen, MD

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Additional Information
Dr. David Robert Maslen MD is a male Internist, has 20 years of experience and practices in Internal Medicine.
Where does Dr. David R. Maslen practice?
Dr. David Maslen has 4 office locations.
Dr. David Maslen practices Internal Medicine near Portland, OR.
Additional practice locations include: Clackamas, OR.
See Portland Internists.