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

John Michael Malleis, MD

Individual provider Internal Medicine Physician · NPI 1144511643

John Michael Malleis, MD is an Internal Medicine in Medford, Oregon. Graduated from Wayne State University School of Medicine in 2011, 15 years ago. Practices with Peacehealth, a 29-clinician group and accepts Medicare assignment. Licensed in Oregon.

Years since qualifying
15
Trained at
Wayne State University School of Medicine
Licensed in
OR
In the registry since
2011
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

2859 State St Ste 102
Medford, OR 97504-8495
Phone: (248) 459-5290
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD174285 (OR)
Pediatrics Physician Taxonomy 208000000X · Licence MD174285 (OR)

Record details

NPI number1144511643
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 2, 2011
Last updated in NPPESDecember 3, 2015
Mailing address2464 Argonne Ave, Medford, OR 97504-8552

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesPEDIATRIC MEDICINE
Medical schoolWAYNE STATE UNIVERSITY SCHOOL OF MEDICINE
Graduated 2011 (15 years in practice)
Group practice Peacehealth — 29 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Medford