Quick answers
- Where does Sienna C. Wickramasekera see patients?
- Medicare's clinician data lists 7 practice locations, including Portland, OR, Gresham, OR and Beaverton, OR. Call before your visit to confirm the address.
- What is Sienna C. Wickramasekera's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Sienna C. Wickramasekera accept Medicare assignment?
- Yes. Medicare's clinician data says Sienna C. Wickramasekera accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Sienna C. Wickramasekera?
- (503) 413-8988, as listed in official Medicare / NPI Registry data.
- What is Sienna C. Wickramasekera's NPI number?
- 1962096636. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Sienna C. Wickramasekera is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 7; the Medicare profile lists all.
- 1130 NW 22nd Ave, Suite 220Portland, OR 97210 (503) 413‑8988
- 2850 SE Powell Valley RdGresham, OR 97080 (503) 666‑5050
- 2870 SW Cedar Hills BlvdBeaverton, OR 97005 (503) 646‑9222
- 3 Monroe Pkwy, Suite XLake Oswego, OR 97035 (503) 679‑3748
- 305 SE Chkalov Dr, Suite 170Vancouver, WA 98683 (360) 799‑3912
Group practices
Medicare enrollment lists Sienna C. Wickramasekera as a member of this group (CMS data updated 2026-10-02).
- Legacy Clinics LLC713 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Portland
Clinicians with the same Medicare primary specialty in Portland, OR — not a recommendation.
Clinician information
| Medical school | Touro Un Col Of Osteopathic Medicine, Henderson |
|---|---|
| Graduation year | 2020 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1962096636 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians