Quick answers
- Which hospitals does Robert G. Trapp work at?
- Medicare's official clinician data lists Robert G. Trapp at 3 hospitals: Kadlec Regional Medical Center, Providence Centralia Hospital and Summit Pacific Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Robert G. Trapp see patients?
- Medicare's clinician data lists 2 practice locations, including Lacey, WA and Kennewick, WA. Call before your visit to confirm the address.
- What is Robert G. Trapp's specialty?
- Medicare lists Rheumatology as the primary specialty.
- Does Robert G. Trapp accept Medicare assignment?
- Yes. Medicare's clinician data says Robert G. Trapp 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 Robert G. Trapp?
- (360) 486-2900, as listed in official Medicare / NPI Registry data.
- What is Robert G. Trapp's NPI number?
- 1841363751. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Robert G. Trapp works
Medicare's Facility Affiliation Data lists Robert G. Trapp at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Kadlec Regional Medical CenterRichland, WA · Acute Care Hospital · CCN 500058
- Providence Centralia HospitalCentralia, WA · Acute Care Hospital · CCN 500019
- Summit Pacific Medical CenterElma, WA · Critical Access Hospital · CCN 501304
Practice locations
Addresses where Robert G. Trapp is enrolled with Medicare (CMS data updated 2026-10-02).
- 4800 College St SELacey, WA 98503 (360) 486‑2900
- 6710 W Okanogan PlKennewick, WA 99336 (509) 942‑2528
Group practices
Medicare enrollment lists Robert G. Trapp as a member of these groups (CMS data updated 2026-10-02).
- Providence Health and Services Washington475 clinicians in the group
- Kadlec Regional Medical Center414 clinicians in the group
Specialties
- Rheumatologyprimary
Other rheumatologists in Lacey
Clinicians with the same Medicare primary specialty in Lacey, WA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Northwestern University Feinberg Medical School |
| Graduation year | 1974 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1841363751 |
| 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