JOHN DENKER, M.D.
Concierge Medicine
Male provider·Accepting new patients
Portland, Oregon
Providing personalized, whole-person care for the long term health of adults in Portland.
Credentials & Training
Federally verified- Credential
- MD
- Medical school
- Oregon Health Sciences University School of Medicine
- Graduated
- 1980
- Medicare specialty
- General Practice
- Group practice
- Marquis Clinical Services LLC · 24 clinicians
- Medicare assignment
- Accepted — bills the Medicare-approved amount as payment in full
Sourced from the CMS Doctors & Clinicians national file, last checked September 2026.
About
Dr. John Denker is an Adult Medicine Physician in Portland, Oregon, focusing on providing comprehensive care to adults of all ages. He takes a holistic approach to address the unique needs of each patient.
The practice operates on a direct-pay model, allowing Dr. Denker to devote more time to patients and tailor care plans based on individual needs, without the influence of third-party insurance.
Areas of Focus
Adult MedicineComprehensive CarePreventive Medicine
Specialties
Patients Served
AdultsAll Ages
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