Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Angela Trissandra Marshall-Olson, DO

Individual provider Internal Medicine Physician · NPI 1841493988

Dr. Angela Trissandra Marshall-Olson, DO is an Internal Medicine in Portland, Oregon. Qualified in 2006, 20 years ago. Practices with Legacy Clinics LLC, a 718-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Oregon.

Years since qualifying
20
Licensed in
OR
In the registry since
2007
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

1200 NW 23rd Ave
Portland, OR 97210-2906
Phone: (503) 413-7074
Fax: (503) 413-6769
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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 DO29017 (OR)

Record details

NPI number1841493988
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorYes
NPI enumeratedJune 7, 2007
Last updated in NPPESJuly 19, 2010

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2006 (20 years in practice)
Group practice Legacy Clinics Llc — 718 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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