Quick answers
- Which hospitals does Daniel J. Sitkowski work at?
- Medicare's official clinician data lists Daniel J. Sitkowski at 4 hospitals: Columbia Memorial Hospital, Ocean Beach Hospital, Providence Seaside Hospital and Providence St Vincent Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Daniel J. Sitkowski see patients?
- Medicare's clinician data lists 3 practice locations, including Warrenton, OR and Seaside, OR. Call before your visit to confirm the address.
- What is Daniel J. Sitkowski's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Daniel J. Sitkowski accept Medicare assignment?
- Yes. Medicare's clinician data says Daniel J. Sitkowski 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 Daniel J. Sitkowski?
- (503) 861-6500, as listed in official Medicare / NPI Registry data.
- What is Daniel J. Sitkowski's NPI number?
- 1639156854. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Daniel J. Sitkowski works
Medicare's Facility Affiliation Data lists Daniel J. Sitkowski at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Columbia Memorial HospitalAstoria, OR · Critical Access Hospital · CCN 381320
- Ocean Beach HospitalIlwaco, WA · Critical Access Hospital · CCN 501314
- Providence Seaside HospitalSeaside, OR · Critical Access Hospital · CCN 381303
- Providence St Vincent Medical CenterPortland, OR · Acute Care Hospital · CCN 380004
Practice locations
Addresses where Daniel J. Sitkowski is enrolled with Medicare (CMS data updated 2026-10-02).
- 113 S Hwy 101Warrenton, OR 97146 (503) 861‑6500
- 725 S Wahanna RdSeaside, OR 97138 (503) 717‑7000
- 727 S Wahanna RdSeaside, OR 97138 (503) 717‑7000
Group practices
Medicare enrollment lists Daniel J. Sitkowski as a member of this group (CMS data updated 2026-10-02).
- Providence Health and Services Oregon97 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Warrenton
Clinicians with the same Medicare primary specialty in Warrenton, OR — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 1980 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1639156854 |
| 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