Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Mark Gardner Bates, MD

Individual provider Internal Medicine Physician · NPI 1558453696

Mark Gardner Bates, MD practises Internal Medicine in Beaverton, Oregon. Graduated from University of Kentucky College of Medicine in 1992, 34 years ago. Practices with Portland Clinic, a 93-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Oregon.

Years since qualifying
34
Trained at
University of Kentucky College 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

15950 SW Millikan Way
Beaverton, OR 97006
Phone: (503) 646-0161
Fax: (503) 643-7459
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD24179 (OR)

Record details

NPI number1558453696
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 28, 2006
Last updated in NPPESOctober 19, 2020
Certification dateOctober 19, 2020

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF KENTUCKY COLLEGE OF MEDICINE
Graduated 1992 (34 years in practice)
Group practice Portland Clinic — 93 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations4 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients133
Services billed 2,265 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Portland Clinic

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 93 clinicians in the practice; 12 are shown here.

Other providers in Beaverton