Quick answers
- Which hospitals does Stephen Viltrakis work at?
- Medicare's official clinician data lists Stephen Viltrakis at 3 hospitals: Mad River Community Hospital, Providence Redwood Memorial Hospital and Providence St Joseph Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Stephen Viltrakis see patients?
- Medicare's clinician data lists 2 practice locations, including Eureka, CA and Fortuna, CA. Call before your visit to confirm the address.
- What is Stephen Viltrakis's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does Stephen Viltrakis accept Medicare assignment?
- Yes. Medicare's clinician data says Stephen Viltrakis 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 Stephen Viltrakis?
- (707) 445-5431, as listed in official Medicare / NPI Registry data.
- What is Stephen Viltrakis's NPI number?
- 1992891295. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Stephen Viltrakis works
Medicare's Facility Affiliation Data lists Stephen Viltrakis at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mad River Community HospitalArcata, CA · Acute Care Hospital · CCN 050028
- Providence Redwood Memorial HospitalFortuna, CA · Critical Access Hospital · CCN 051318
- Providence St Joseph HospitalEureka, CA · Acute Care Hospital · CCN 050006
Practice locations
Addresses where Stephen Viltrakis is enrolled with Medicare (CMS data updated 2026-10-02).
- 2700 Dolbeer StEureka, CA 95501 (707) 445‑5431
- 3300 Renner DrFortuna, CA 95540 (707) 445‑5431
Group practices
Medicare enrollment lists Stephen Viltrakis as a member of this group (CMS data updated 2026-10-02).
- Humboldt Radiology Medical Group, Inc13 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Eureka
Clinicians with the same Medicare primary specialty in Eureka, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Wisconsin School Of Medicine |
| Graduation year | 1990 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1992891295 |
| 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