Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Michael Duncan Kiefer, MD

Individual provider Internal Medicine Physician · NPI 1447690102

Dr. Michael Duncan Kiefer, MD is a Hospitalist in Portland, Oregon. Graduated from Oregon Health Sciences University School of Medicine in 2015, 11 years ago. Practices with Mid-Columbia Medical Center, a 94-clinician group and accepts Medicare assignment. Licensed in Oregon.

Years since qualifying
11
Trained at
Oregon Health Sciences University School of Medicine
Licensed in
OR
In the registry since
2013
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

3181 SW Sam Jackson Park Rd
Portland, OR 97239-3011
Phone: (503) 494-6101
Fax: (503) 494-1159
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence MD199880 (OR)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD199880 (OR)

Record details

NPI number1447690102
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 26, 2013
Last updated in NPPESAugust 20, 2020
Certification dateAugust 20, 2020

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHOSPITALIST
Medical schoolOREGON HEALTH SCIENCES UNIVERSITY SCHOOL OF MEDICINE
Graduated 2015 (11 years in practice)
Group practice Mid-Columbia Medical Center — 94 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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