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

Dr. Melissa S Defreest, MD

Individual provider Emergency Medicine Physician · NPI 1407960388

Dr. Melissa S Defreest, MD is an Emergency Medicine in Eugene, Oregon. Graduated from Oregon Health Sciences University School of Medicine in 2003, 23 years ago. Practices with Peacehealth Medical Group, a 254-clinician group, works from 8 locations and accepts Medicare assignment. Licensed in Oregon.

Years since qualifying
23
Trained at
Oregon Health Sciences University 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

600 Country Club Rd Ste 100
Eugene, OR 97401-2240
Phone: (541) 463-2390
Fax: (541) 463-2889
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (7)

  • 1515 Village Dr Ste 120, Cottage Grove, OR 97424-9700 — (541) 767-5200
  • 1200 Hilyard St Ste 110, Eugene, OR 97401-8112 — (458) 205-6011
  • 2846 Willamette St, Eugene, OR 97405-8200 — (541) 222-8700
  • 1255 Hilyard St, Eugene, OR 97401-3718 — (503) 686-7300
  • 2830 Crescent Ave, Eugene, OR 97408-7397 — (541) 686-9000
  • 3299 Hilyard St, Eugene, OR 97405-3721 — (541) 222-8620
  • 35859 Highway 58, Pleasant Hill, OR 97455-9651 — (541) 767-5200

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence MD41141 (OR)

Record details

NPI number1407960388
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 18, 2006
Last updated in NPPESMay 7, 2026
Certification dateMay 7, 2026

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOREGON HEALTH SCIENCES UNIVERSITY SCHOOL OF MEDICINE
Graduated 2003 (23 years in practice)
Group practice Peacehealth Medical Group — 254 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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