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

Mark Patrick Cahill, MD

Individual provider Gastroenterology Physician · NPI 1598957888

Mark Patrick Cahill, MD is an Internal Medicine in Tualatin, Oregon. Graduated from University of Washington School of Medicine in 2006, 20 years ago. Practices with The Oregon Clinic, PC, a 352-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Oregon.

Years since qualifying
20
Trained at
University of Washington School of Medicine
Licensed in
OR
In the registry since
2007
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 Address checks out

19250 SW 90th Ave
Tualatin, OR 97062-7585
Phone: (503) 692-3750
Fax: (503) 691-2324
Show map & directions

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

Additional practice locations (1)

  • 1508 Division St Ste 10, Oregon City, OR 97045-1582 — (503) 692-3750

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence MD29414 (OR)

Record details

NPI number1598957888
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 10, 2007
Last updated in NPPESNovember 28, 2023
Certification dateNovember 28, 2023
Mailing address541 Ne 20th Ave Ste 225, Portland, OR 97232-2895

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesGASTROENTEROLOGY
Medical schoolUNIVERSITY OF WASHINGTON SCHOOL OF MEDICINE
Graduated 2006 (20 years in practice)
Group practice The Oregon Clinic, Pc — 352 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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