Quick answers
- Which hospitals does Mark R. Tonelli work at?
- Medicare's official clinician data lists Mark R. Tonelli at 1 hospital: University of Washington Medical Ctr. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark R. Tonelli see patients?
- Medicare's clinician data lists 3 practice locations, including Seattle, WA. Call before your visit to confirm the address.
- What is Mark R. Tonelli's specialty?
- Medicare lists Pulmonary Disease as the primary specialty, and also Critical Care (Intensivists) and Internal Medicine.
- Does Mark R. Tonelli accept Medicare assignment?
- Yes. Medicare's clinician data says Mark R. Tonelli 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 Mark R. Tonelli offer telehealth?
- Medicare's clinician data says Mark R. Tonelli offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Mark R. Tonelli?
- (206) 368-1626, as listed in official Medicare / NPI Registry data.
- What is Mark R. Tonelli's NPI number?
- 1649360504. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark R. Tonelli works
Medicare's Facility Affiliation Data lists Mark R. Tonelli at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- University of Washington Medical CtrSeattle, WA · Acute Care Hospital · CCN 500008
Practice locations
Addresses where Mark R. Tonelli is enrolled with Medicare (CMS data updated 2026-10-02).
- 1560 N 115th St, Suite G5Seattle, WA 98133 (206) 368‑1626
- 1701 Columbia RdSeattle, WA 98195 (206) 598‑3100
- 1959 NE Pacific StSeattle, WA 98195 (206) 598‑4333
Group practices
Medicare enrollment lists Mark R. Tonelli as a member of this group (CMS data updated 2026-10-02).
- The Association of University Physicians3,535 clinicians in the group
Specialties
Other pulmonologists in Seattle
Clinicians with the same Medicare primary specialty in Seattle, WA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Colorado School Of Medicine, Denver |
| Graduation year | 1989 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1649360504 |
| 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