Quick answers
- Which hospitals does Roy M. Bak work at?
- Medicare's official clinician data lists Roy M. Bak at 5 hospitals: Advocate Christ Hospital & Medical Center, Legacy Emanuel Medical Center, Legacy Meridian Park Medical Center, Prov Sacred HRT Med Ctr & Childs Hosp. and Spectrum Health. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Roy M. Bak see patients?
- Medicare's clinician data lists 6 practice locations, including Spokane, WA, Park Ridge, IL and Portland, OR. Call before your visit to confirm the address.
- What is Roy M. Bak's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does Roy M. Bak accept Medicare assignment?
- Yes. Medicare's clinician data says Roy M. Bak 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 Roy M. Bak?
- (509) 474-3131, as listed in official Medicare / NPI Registry data.
- What is Roy M. Bak's NPI number?
- 1225046352. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Roy M. Bak works
Medicare's Facility Affiliation Data lists Roy M. Bak at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Advocate Christ Hospital & Medical CenterOak Lawn, IL · Acute Care Hospital · CCN 140208
- Legacy Emanuel Medical CenterPortland, OR · Acute Care Hospital · CCN 380007
- Legacy Meridian Park Medical CenterTualatin, OR · Acute Care Hospital · CCN 380089
- Prov Sacred HRT Med Ctr & Childs Hosp.Spokane, WA · Acute Care Hospital · CCN 500054
- Spectrum HealthGrand Rapids, MI · Acute Care Hospital · CCN 230038
Practice locations
Addresses where Roy M. Bak is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 101 W 8th AveSpokane, WA 99204 (509) 474‑3131
- 1775 Dempster StPark Ridge, IL 60068 (847) 723‑9454
- 2801 N Gantenbein AvePortland, OR 97227 (503) 299‑9906
- 5633 N Lidgerwood StSpokane, WA 99208 (509) 482‑0111
- 9555 76th StPleasant Prairie, WI 53158 (262) 577‑8000
Group practices
Medicare enrollment lists Roy M. Bak as a member of these groups (CMS data updated 2026-10-02).
- Advocate Health and Hospitals Corporation3,118 clinicians in the group
- Oregon Anesthesiology Group PC232 clinicians in the group
- Providence Health and Service- Washington173 clinicians in the group
- Vituity-Wisconsin Anesthesia SC139 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Spokane
Clinicians with the same Medicare primary specialty in Spokane, WA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Washington School Of Medicine |
| Graduation year | 1997 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1225046352 |
| 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