Quick answers
- Which hospitals does Isabelle S. Sinaga work at?
- Medicare's official clinician data lists Isabelle S. Sinaga at 3 hospitals: Jefferson Healthcare, St Michael Medical Center and Virginia Mason Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Isabelle S. Sinaga see patients?
- Medicare's clinician data lists 3 practice locations, including Bainbridge Island, WA, Kingston, WA and Bremerton, WA. Call before your visit to confirm the address.
- What is Isabelle S. Sinaga's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Isabelle S. Sinaga accept Medicare assignment?
- Yes. Medicare's clinician data says Isabelle S. Sinaga 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 Isabelle S. Sinaga offer telehealth?
- Medicare's clinician data says Isabelle S. Sinaga offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Isabelle S. Sinaga?
- (206) 842-5632, as listed in official Medicare / NPI Registry data.
- What is Isabelle S. Sinaga's NPI number?
- 1396412433. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Isabelle S. Sinaga works
Medicare's Facility Affiliation Data lists Isabelle S. Sinaga at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Jefferson HealthcarePort Townsend, WA · Critical Access Hospital · CCN 501323
- St Michael Medical CenterSilverdale, WA · Acute Care Hospital · CCN 500039
- Virginia Mason Medical CenterSeattle, WA · Acute Care Hospital · CCN 500005
Practice locations
Addresses where Isabelle S. Sinaga is enrolled with Medicare (CMS data updated 2026-10-02).
- 1344 Wintergreen Ln NEBainbridge Island, WA 98110 (206) 842‑5632
- 25989 Barber Cut Off Rd NEKingston, WA 98346 (360) 377‑3776
- 616 6th StBremerton, WA 98337 (360) 377‑3776
Group practices
Medicare enrollment lists Isabelle S. Sinaga as a member of these groups (CMS data updated 2026-10-02).
- Virginia Mason Medical Center867 clinicians in the group
- Peninsula Community Health Services46 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Bainbridge Island
Clinicians with the same Medicare primary specialty in Bainbridge Island, WA — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2021 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1396412433 |
| 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