Quick answers
- Which hospitals does Clayton M. Smiley work at?
- Medicare's official clinician data lists Clayton M. Smiley at 5 hospitals: Columbia Memorial Hospital, Legacy Emanuel Medical Center, Legacy Good Samaritan Medical Center, OHSU Hospital and Clinics and Salem Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Clayton M. Smiley see patients?
- Medicare's clinician data lists 3 practice locations, including Wailuku, HI, Portland, OR and Tualatin, OR. Call before your visit to confirm the address.
- What is Clayton M. Smiley's specialty?
- Medicare lists Nephrology as the primary specialty.
- Does Clayton M. Smiley accept Medicare assignment?
- Yes. Medicare's clinician data says Clayton M. Smiley 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 Clayton M. Smiley offer telehealth?
- Medicare's clinician data says Clayton M. Smiley offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Clayton M. Smiley?
- (808) 442-7777, as listed in official Medicare / NPI Registry data.
- What is Clayton M. Smiley's NPI number?
- 1679544431. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Clayton M. Smiley works
Medicare's Facility Affiliation Data lists Clayton M. Smiley 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
- Legacy Emanuel Medical CenterPortland, OR · Acute Care Hospital · CCN 380007
- Legacy Good Samaritan Medical CenterPortland, OR · Acute Care Hospital · CCN 380017
- OHSU Hospital and ClinicsPortland, OR · Acute Care Hospital · CCN 380009
- Salem HospitalSalem, OR · Acute Care Hospital · CCN 380051
Practice locations
Addresses where Clayton M. Smiley is enrolled with Medicare (CMS data updated 2026-10-02).
- 105 Maui Lani Pkwy, Suite 100Wailuku, HI 96793 (808) 442‑7777
- 1130 NW 22nd Ave, Suite 640Portland, OR 97210 (503) 229‑7976
- 8050 SW Warm Springs St, Suite 150Tualatin, OR 97062 (503) 692‑7971
Group practices
Medicare enrollment lists Clayton M. Smiley as a member of this group (CMS data updated 2026-10-02).
- Northwest Renal Clinic Inc40 clinicians in the group
Specialties
- Nephrologyprimary
Other nephrologists in Wailuku
Clinicians with the same Medicare primary specialty in Wailuku, HI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1998 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1679544431 |
| 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