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

Dr. Diego John Muilenburg, MD

Individual provider Surgical Oncology Physician · NPI 1295716926

Dr. Diego John Muilenburg, MD is a General Surgery in Springfield, Oregon. Graduated from Georgetown University School of Medicine in 2005, 21 years ago. Practices with Peacehealth Medical Group, a 254-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Arizona and Oregon.

Years since qualifying
21
Trained at
Georgetown University School of Medicine
Licensed in
AZ, OR
In the registry since
2005
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Partly verified

Some contact details are missing from the federal record.

Peacehealth Surgical Specialities 3355 Riverbend Dr Ste 300
Springfield, OR 97477-8800
Phone: (541) 222-8333
Fax: (541) 222-8320
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 3377 Riverbend Dr Ste 230, Springfield, OR 97477-8806 — (541) 222-2700

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence MD166758 (OR)
Surgical Oncology Physician Taxonomy 2086X0206X · Licence 53543 (AZ)
Surgical Oncology Physician Taxonomy 2086X0206X · Licence MD166758 (OR)

Record details

NPI number1295716926
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedNovember 9, 2005
Last updated in NPPESFebruary 28, 2024
Certification dateNovember 29, 2022

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Medical schoolGEORGETOWN UNIVERSITY SCHOOL OF MEDICINE
Graduated 2005 (21 years in practice)
Group practice Peacehealth Medical Group — 254 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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