Quick answers
- Which hospitals does Mark D. Williams work at?
- Medicare's official clinician data lists Mark D. Williams at 3 hospitals: Samaritan Albany General Hospital, Samaritan Lebanon Community Hospital and Samaritan Pacific Community Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark D. Williams see patients?
- Medicare's clinician data lists 2 practice locations, including Albany, OR and Corvallis, OR. Call before your visit to confirm the address.
- What is Mark D. Williams's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Mark D. Williams accept Medicare assignment?
- Yes. Medicare's clinician data says Mark D. 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.
- What is the phone number for Mark D. Williams?
- (503) 362-8385, as listed in official Medicare / NPI Registry data.
- What is Mark D. Williams's NPI number?
- 1255369765. 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 D. Williams works
Medicare's Facility Affiliation Data lists Mark D. Williams at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Samaritan Albany General HospitalAlbany, OR · Acute Care Hospital · CCN 380022
- Samaritan Lebanon Community HospitalLebanon, OR · Critical Access Hospital · CCN 381323
- Samaritan Pacific Community HospitalNewport, OR · Critical Access Hospital · CCN 381314
Practice locations
Addresses where Mark D. Williams is enrolled with Medicare (CMS data updated 2026-10-02).
- 1390 Waverly Dr SEAlbany, OR 97322 (503) 362‑8385
- 2358 NW Kings Blvd, Suite 100Corvallis, OR 97330 (503) 362‑8385
Group practices
Medicare enrollment lists Mark D. Williams as a member of this group (CMS data updated 2026-10-02).
- Silver Falls Dermatology LLC101 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Albany
Clinicians with the same Medicare primary specialty in Albany, OR — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 1998 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1255369765 |
| 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