Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Hematology/Oncology

Antoni Ribas, MD

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

Summary

Antoni Ribas, MD (Hematology/Oncology) is listed by Medicare at 2 hospitals in Los Angeles, CA and Santa Monica, CA. NPI 1730109331. 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 Antoni Ribas, 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

Hematology/OncologyPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
36Years since medical school (graduated 1990)
MaleGender (as listed)
The Regents of the University of CaliforniaGroup practice

Quick answers

Which hospitals does Antoni Ribas work at?
Medicare's official clinician data lists Antoni Ribas at 2 hospitals: Ronald Reagan UCLA Medical Center and Santa Monica - UCLA Med Ctr & Orthopaedic Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Antoni Ribas see patients?
Medicare's clinician data lists 7 practice locations, including Los Angeles, CA and Santa Monica, CA. Call before your visit to confirm the address.
What is Antoni Ribas's specialty?
Medicare lists Hematology/Oncology as the primary specialty, and also Internal Medicine.
Does Antoni Ribas accept Medicare assignment?
Yes. Medicare's clinician data says Antoni Ribas 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 Antoni Ribas offer telehealth?
Medicare's clinician data says Antoni Ribas offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Antoni Ribas?
(310) 825-7922, as listed in official Medicare / NPI Registry data.
What is Antoni Ribas's NPI number?
1730109331. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Antoni Ribas works

Medicare's Facility Affiliation Data lists Antoni Ribas 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 Antoni Ribas is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 7; the Medicare profile lists all.

Group practices

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

  • The Regents of the University of California1,462 clinicians in the group

Specialties

Find other Hematology/Oncology doctors in California →

Other hematologist-oncologists in Los Angeles

Clinicians with the same Medicare primary specialty in Los Angeles, CA — not a recommendation.

All hematologist-oncologists in Los Angeles →

Clinician information

CredentialMD
Graduation year1990
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1730109331
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