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

Alexandra Armstrong, MD

Individual provider Internal Medicine Physician · NPI 1629242730

Alexandra Armstrong, MD is an Internal Medicine in Warrenton, Oregon. Graduated from Louisiana State University School of Medicine in New Orleans in 2008, 18 years ago. Practices with Columbia Lutheran Charities, a 110-clinician group and accepts Medicare assignment. Licensed in Illinois and Oregon.

Years since qualifying
18
Trained at
Louisiana State University School of Medicine in New Orleans
Licensed in
IL, OR
In the registry since
2008
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

1639 SE Ensign Ln Ste B102
Warrenton, OR 97146-7308
Phone: (503) 338-4500
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 MD182545 (OR)
Internal Medicine Physician Taxonomy 207R00000X · Licence 036128943 (IL)

Record details

NPI number1629242730
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 18, 2008
Last updated in NPPESJuly 21, 2022
Mailing address1639 Se Ensign Ln Ste B102, Warrenton, OR 97146-7308

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolLOUISIANA STATE UNIVERSITY SCHOOL OF MEDICINE IN NEW ORLEANS
Graduated 2008 (18 years in practice)
Group practice Columbia Lutheran Charities — 110 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare