Quick answers
- Which hospitals does Catherine Koper work at?
- Medicare's official clinician data lists Catherine Koper at 1 hospital: Hoag Memorial Hospital Presbyterian. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Catherine Koper see patients?
- Medicare's clinician data lists 2 practice locations, including Newport Beach, CA. Call before your visit to confirm the address.
- What is Catherine Koper's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Infectious Disease.
- Does Catherine Koper accept Medicare assignment?
- Medicare's clinician data says Catherine Koper may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- Does Catherine Koper offer telehealth?
- Medicare's clinician data says Catherine Koper offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Catherine Koper?
- (949) 645-8600, as listed in official Medicare / NPI Registry data.
- What is Catherine Koper's NPI number?
- 1245466929. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Catherine Koper works
Medicare's Facility Affiliation Data lists Catherine Koper 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 Catherine Koper is enrolled with Medicare (CMS data updated 2026-10-02).
- 1 Hoag DrNewport Beach, CA 92663 (949) 645‑8600
- 361 Hospital Rd, Suite 527Newport Beach, CA 92663 (201) 888‑3433
Specialties
- Internal Medicineprimary
- Infectious Diseasealso
Other internal medicine doctors in Newport Beach
Clinicians with the same Medicare primary specialty in Newport Beach, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2012 |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1245466929 |
| 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