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Surgical Oncology

Mark Faries, MD

Works at hospitals in Los Angeles, CA · Santa Monica, CA · California

Summary

Mark Faries, MD (Surgical Oncology) is listed by Medicare at 2 hospitals in Los Angeles, CA and Santa Monica, CA. NPI 1659428969. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Mark Faries, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Surgical OncologyPrimary specialty
YesAccepts Medicare assignment
31Years since medical school (graduated 1995)
Js Weill Medical College, Cornell UniversityMedical school
MaleGender (as listed)
Cedars-Sinai Medical Care FoundationGroup practice

Quick answers

Which hospitals does Mark Faries work at?
Medicare's official clinician data lists Mark Faries at 2 hospitals: Cedars-Sinai Medical Center and Saint John's Health Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Mark Faries see patients?
Medicare's clinician data lists 1 practice location in Santa Monica, CA. Call before your visit to confirm the address.
What is Mark Faries's specialty?
Medicare lists Surgical Oncology as the primary specialty, and also General Surgery.
Does Mark Faries accept Medicare assignment?
Yes. Medicare's clinician data says Mark Faries 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 Mark Faries?
(310) 582-7900, as listed in official Medicare / NPI Registry data.
What is Mark Faries's NPI number?
1659428969. 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 Faries works

Medicare's Facility Affiliation Data lists Mark Faries at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Mark Faries is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Mark Faries as a member of this group (CMS data updated 2026-10-02).

  • Cedars-Sinai Medical Care Foundation1,692 clinicians in the group

Specialties

Find other Surgical Oncology doctors in California →

Other surgical oncologists in Santa Monica

Clinicians with the same Medicare primary specialty in Santa Monica, CA — not a recommendation.

All surgical oncologists in Santa Monica →

Clinician information

CredentialMD
Medical schoolJs Weill Medical College, Cornell University
Graduation year1995
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1659428969
CorrectionsReport 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

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians