Quick answers
- Which hospitals does Evan Ong work at?
- Medicare's official clinician data lists Evan Ong at 1 hospital: Swedish Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Evan Ong see patients?
- Medicare's clinician data lists 2 practice locations, including Seattle, WA and Edmonds, WA. Call before your visit to confirm the address.
- What is Evan Ong's specialty?
- Medicare lists Surgical Oncology as the primary specialty.
- Does Evan Ong accept Medicare assignment?
- Yes. Medicare's clinician data says Evan Ong 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.
- Does Evan Ong offer telehealth?
- Medicare's clinician data says Evan Ong offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Evan Ong?
- (206) 386-6700, as listed in official Medicare / NPI Registry data.
- What is Evan Ong's NPI number?
- 1073541959. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Evan Ong works
Medicare's Facility Affiliation Data lists Evan Ong at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Swedish Medical CenterSeattle, WA · Acute Care Hospital · CCN 500027
Practice locations
Addresses where Evan Ong is enrolled with Medicare (CMS data updated 2026-10-02).
- 1221 Madison St, Suite 1411Seattle, WA 98104 (206) 386‑6700
- 21616 76th Ave W, Suite 201aEdmonds, WA 98026 (425) 673‑3400
Group practices
Medicare enrollment lists Evan Ong as a member of this group (CMS data updated 2026-10-02).
- Swedish Health Services1,037 clinicians in the group
Specialties
- Surgical Oncologyprimary
Other surgical oncologists in Seattle
Clinicians with the same Medicare primary specialty in Seattle, WA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Albert Einstein College Of Medicine Of Yeshiva University |
| Graduation year | 1999 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1073541959 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- 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