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

Jason R Leong, DO

Individual provider Critical Care Medicine (Internal Medicine) Physician · NPI 1982623674

Jason R Leong, DO is a Critical Care (Intensivists) in Portland, Oregon. Graduated from Chicago College of Osteopathy in 2001, 25 years ago. Practices with Legacy Clinics LLC, a 718-clinician group and accepts Medicare assignment. Licensed in Oregon.

Years since qualifying
25
Trained at
Chicago College of Osteopathy
Licensed in
OR
In the registry since
2006
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.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

2801 N Gantenbein Ave
Portland, OR 97227-1623
Phone: (503) 413-2200
Fax: (503) 413-7361
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Critical Care Medicine (Internal Medicine) Physician (primary) Taxonomy 207RC0200X · Licence DO26699 (OR)

Record details

NPI number1982623674
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJuly 19, 2006
Last updated in NPPESFebruary 4, 2022
Mailing address1015 Nw 22nd Ave, R 200, Portland, OR 97210-3025

Medicare enrollment

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

Medicare specialtyCRITICAL CARE (INTENSIVISTS)
Medical schoolCHICAGO COLLEGE OF OSTEOPATHY
Graduated 2001 (25 years in practice)
Group practice Legacy Clinics Llc — 718 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 on file with Medicare

Other providers in Portland