Quick answers
- Which hospitals does William S. Helton work at?
- Medicare's official clinician data lists William S. Helton at 1 hospital: Virginia Mason Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William S. Helton see patients?
- Medicare's clinician data lists 5 practice locations, including Seattle, WA, Lynnwood, WA and Federal Way, WA. Call before your visit to confirm the address.
- What is William S. Helton's specialty?
- Medicare lists General Surgery as the primary specialty, and also Surgical Oncology.
- Does William S. Helton accept Medicare assignment?
- Yes. Medicare's clinician data says William S. Helton 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 William S. Helton offer telehealth?
- Medicare's clinician data says William S. Helton offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for William S. Helton?
- (425) 712-7900, as listed in official Medicare / NPI Registry data.
- What is William S. Helton's NPI number?
- 1649282922. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where William S. Helton works
Medicare's Facility Affiliation Data lists William S. Helton at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Virginia Mason Medical CenterSeattle, WA · Acute Care Hospital · CCN 500005
Practice locations
Addresses where William S. Helton is enrolled with Medicare (CMS data updated 2026-10-02).
- 1100 9th AveSeattle, WA 98101
- 19116 33rd Ave WLynnwood, WA 98036 (425) 712‑7900
- 33501 1st Way SFederal Way, WA 98003 (253) 838‑2400
- 7315 212th St SWEdmonds, WA 98026 (425) 775‑9474
- 925 Seneca StSeattle, WA 98101 (206) 223‑6600
Group practices
Medicare enrollment lists William S. Helton as a member of this group (CMS data updated 2026-10-02).
- Virginia Mason Medical Center867 clinicians in the group
Specialties
- General Surgeryprimary
- Surgical Oncologyalso
Other general surgeons in Seattle
Clinicians with the same Medicare primary specialty in Seattle, WA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, Irvine, California College Of Medicine |
| Graduation year | 1981 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1649282922 |
| 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