Quick answers
- Which hospitals does Mark D. Girgis work at?
- Medicare's official clinician data lists Mark D. Girgis at 1 hospital: Ronald Reagan UCLA Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark D. Girgis see patients?
- Medicare's clinician data lists 4 practice locations, including Los Angeles, CA and Santa Monica, CA. Call before your visit to confirm the address.
- What is Mark D. Girgis's specialty?
- Medicare lists Surgical Oncology as the primary specialty, and also Colorectal Surgery (Proctology) and General Surgery.
- Does Mark D. Girgis accept Medicare assignment?
- Yes. Medicare's clinician data says Mark D. Girgis 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 Mark D. Girgis offer telehealth?
- Medicare's clinician data says Mark D. Girgis offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Mark D. Girgis?
- (310) 825-7922, as listed in official Medicare / NPI Registry data.
- What is Mark D. Girgis's NPI number?
- 1588826382. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark D. Girgis works
Medicare's Facility Affiliation Data lists Mark D. Girgis at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ronald Reagan UCLA Medical CenterLos Angeles, CA · Acute Care Hospital · CCN 050262
Practice locations
Addresses where Mark D. Girgis is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 Medical Plaza, Suite 310Los Angeles, CA 90095 (310) 825‑7922
- 1260 15th St, Suite 1200Santa Monica, CA 90404 (310) 451‑8751
- 200 Medical Plaza, Suite 120Los Angeles, CA 90024 (310) 390‑4099
- 757 Westwood Plz, Fl 7Los Angeles, CA 90095 (310) 825‑9111
Group practices
Medicare enrollment lists Mark D. Girgis as a member of these groups (CMS data updated 2026-10-02).
- UCLA Associated General Surgeons46 clinicians in the group
- The Regents of the University of California14 clinicians in the group
Specialties
Other surgical oncologists in Los Angeles
Clinicians with the same Medicare primary specialty in Los Angeles, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Loyola University Of Chicago, Stritch School Of Medicine |
| Graduation year | 2007 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1588826382 |
| 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