Quick answers
- Which hospitals does Frederick A. Tibayan work at?
- Medicare's official clinician data lists Frederick A. Tibayan at 1 hospital: OHSU Hospital and Clinics. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Frederick A. Tibayan see patients?
- Medicare's clinician data lists 3 practice locations, including Warrenton, OR and Portland, OR. Call before your visit to confirm the address.
- What is Frederick A. Tibayan's specialty?
- Medicare lists Cardiac Surgery as the primary specialty.
- Does Frederick A. Tibayan accept Medicare assignment?
- Yes. Medicare's clinician data says Frederick A. Tibayan 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 Frederick A. Tibayan?
- (503) 338-4500, as listed in official Medicare / NPI Registry data.
- What is Frederick A. Tibayan's NPI number?
- 1174719686. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Frederick A. Tibayan works
Medicare's Facility Affiliation Data lists Frederick A. Tibayan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- OHSU Hospital and ClinicsPortland, OR · Acute Care Hospital · CCN 380009
Practice locations
Addresses where Frederick A. Tibayan is enrolled with Medicare (CMS data updated 2026-10-02).
- 1639 SE Ensign LnWarrenton, OR 97146 (503) 338‑4500
- 1639 SE Ensign Ln, Suite B103Warrenton, OR 97146 (503) 338‑4500
- 3181 SW Sam Jackson Park RdPortland, OR 97239 (503) 494‑8311
Group practices
Medicare enrollment lists Frederick A. Tibayan as a member of these groups (CMS data updated 2026-10-02).
- University Professional Services1,724 clinicians in the group
- Columbia Lutheran Charities106 clinicians in the group
Specialties
- Cardiac Surgeryprimary
Other cardiac surgeons in Oregon
Clinicians with the same Medicare primary specialty in Oregon — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Harvard Medical School |
| Graduation year | 1998 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1174719686 |
| 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