Quick answers
- Which hospitals does Mark W. Williams work at?
- Medicare's official clinician data lists Mark W. Williams at 3 hospitals: St Charles Madras, St Charles Medical Center - Bend and St Charles Medical Center Prineville. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark W. Williams see patients?
- Medicare's clinician data lists 2 practice locations, including Redmond, OR. Call before your visit to confirm the address.
- What is Mark W. Williams's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Mark W. Williams accept Medicare assignment?
- Yes. Medicare's clinician data says Mark W. Williams 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 W. Williams offer telehealth?
- Medicare's clinician data says Mark W. Williams offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Mark W. Williams?
- (541) 548-7761, as listed in official Medicare / NPI Registry data.
- What is Mark W. Williams's NPI number?
- 1942564281. 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 W. Williams works
Medicare's Facility Affiliation Data lists Mark W. Williams at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- St Charles MadrasMadras, OR · Critical Access Hospital · CCN 381324
- St Charles Medical Center - BendBend, OR · Acute Care Hospital · CCN 380047
- St Charles Medical Center PrinevillePrineville, OR · Critical Access Hospital · CCN 381313
Practice locations
Addresses where Mark W. Williams is enrolled with Medicare (CMS data updated 2026-10-02).
- 1245 NW 4th St, 101 Surg SpeciRedmond, OR 97756 (541) 548‑7761
- 211 NW Larch Ave, Family CareRedmond, OR 97756 (541) 548‑2164
Group practices
Medicare enrollment lists Mark W. Williams as a member of this group (CMS data updated 2026-10-02).
- St Charles Health System Inc377 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Redmond
Clinicians with the same Medicare primary specialty in Redmond, OR — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Nevada School Of Medicine |
| Graduation year | 2012 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1942564281 |
| 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