Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Gregory C Ruttan, MD

Individual provider Internal Medicine Physician · NPI 1295702306

Dr. Gregory C Ruttan, MD is an Internal Medicine in Clackamas, Oregon. Graduated from University of Miami, Lm Miller School of Medicine in 2002, 24 years ago. Practices with Kaiser Foundation Health Plan of the Northwest, a 1,811-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Oregon.

Years since qualifying
24
Trained at
University of Miami, Lm Miller School of Medicine
Licensed in
OR
In the registry since
2006
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

10180 SE Sunnyside Rd
Clackamas, OR 97015-8970
Phone: (800) 813-2000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 3377 Riverbend Dr, Springfield, OR 97477-8803 — (541) 242-5245

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD24600 (OR)

Record details

NPI number1295702306
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 7, 2006
Last updated in NPPESMay 5, 2025
Certification dateMay 5, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF MIAMI, LM MILLER SCHOOL OF MEDICINE
Graduated 2002 (24 years in practice)
Group practice Kaiser Foundation Health Plan Of The Northwest — 1811 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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