Quick answers
- Which hospitals does Janja Viltuznik work at?
- Medicare's official clinician data lists Janja Viltuznik at 1 hospital: Hoag Memorial Hospital Presbyterian. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Janja Viltuznik see patients?
- Medicare's clinician data lists 1 practice location in Orange, CA. Call before your visit to confirm the address.
- What is Janja Viltuznik's specialty?
- Medicare lists Family Practice as the primary specialty, and also General Practice.
- Does Janja Viltuznik accept Medicare assignment?
- Yes. Medicare's clinician data says Janja Viltuznik 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 Janja Viltuznik?
- (714) 538-6822, as listed in official Medicare / NPI Registry data.
- What is Janja Viltuznik's NPI number?
- 1639182702. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Janja Viltuznik works
Medicare's Facility Affiliation Data lists Janja Viltuznik at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Hoag Memorial Hospital PresbyterianNewport Beach, CA · Acute Care Hospital · CCN 050224
Practice locations
Addresses where Janja Viltuznik is enrolled with Medicare (CMS data updated 2026-10-02).
- 2617 E Chapman Ave, Suite 205Orange, CA 92869 (714) 538‑6822
Group practices
Medicare enrollment lists Janja Viltuznik as a member of this group (CMS data updated 2026-10-02).
- Astra Medical Group2 clinicians in the group
Specialties
- Family Practiceprimary
- General Practicealso
Other family doctors in Orange
Clinicians with the same Medicare primary specialty in Orange, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1981 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1639182702 |
| 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