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

Mary Thomason, MD

Individual provider Internal Medicine Physician · NPI 1427019322

Mary Thomason, MD is an Internal Medicine in Tigard, Oregon. Graduated from Oregon Health Sciences University School of Medicine in 1999, 27 years ago. Practices with Providence Health and Services Oregon, a 1,426-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Oregon and Wisconsin.

Years since qualifying
27
Trained at
Oregon Health Sciences University School of Medicine
Licensed in
OR, WI
In the registry since
2006
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 →

Practice location Address checks out

12442 SW Scholls Ferry Rd Ste 106
Tigard, OR 97223-3396
Phone: (503) 216-9200
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD27320 (OR)
Internal Medicine Physician Taxonomy 207R00000X · Licence 42607 (WI)

Record details

NPI number1427019322
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 30, 2006
Last updated in NPPESMarch 25, 2021
Certification dateMarch 25, 2021
Mailing addressPo Box 3158, Portland, OR 97208-3158

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOREGON HEALTH SCIENCES UNIVERSITY SCHOOL OF MEDICINE
Graduated 1999 (27 years in practice)
Group practice Providence Health And Services Oregon — 1426 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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