Quick answers
- Which hospitals does Christos Karalis work at?
- Medicare's official clinician data lists Christos Karalis at 4 hospitals: Hilo Benioff Medical Center, Penn Highlands Brookville, Penn Highlands Dubois and Penn Highlands Elk. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Christos Karalis see patients?
- Medicare's clinician data lists 2 practice locations, including Hilo, HI and Du Bois, PA. Call before your visit to confirm the address.
- What is Christos Karalis's specialty?
- Medicare lists Gastroenterology as the primary specialty.
- Does Christos Karalis accept Medicare assignment?
- Yes. Medicare's clinician data says Christos Karalis 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 Christos Karalis?
- (808) 932-3730, as listed in official Medicare / NPI Registry data.
- What is Christos Karalis's NPI number?
- 1215487509. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Christos Karalis works
Medicare's Facility Affiliation Data lists Christos Karalis at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Hilo Benioff Medical CenterHilo, HI · Acute Care Hospital · CCN 120005
- Penn Highlands BrookvilleBrookville, PA · Critical Access Hospital · CCN 391312
- Penn Highlands DuboisDubois, PA · Acute Care Hospital · CCN 390086
- Penn Highlands ElkSaint Marys, PA · Critical Access Hospital · CCN 391315
Practice locations
Addresses where Christos Karalis is enrolled with Medicare (CMS data updated 2026-10-02).
- 1190 Waianuenue AveHilo, HI 96720 (808) 932‑3730
- 621 S Main St, Penn Highlands GastroenterologyDu Bois, PA 15801 (814) 371‑0600
Group practices
Medicare enrollment lists Christos Karalis as a member of these groups (CMS data updated 2026-10-02).
- Dubois Regional Medical Center416 clinicians in the group
- Kau Hospital140 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Hilo
Clinicians with the same Medicare primary specialty in Hilo, HI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Rush Medical College Of Rush University |
| Graduation year | 1995 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1215487509 |
| 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