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Cardiovascular Disease (Cardiology)

Arnold Baas, MD

Works at hospitals in San Luis Obispo, CA · Los Angeles, CA · Santa Monica, CA … · California

Summary

Arnold Baas, MD (Cardiovascular Disease (Cardiology)) is listed by Medicare at 4 hospitals in San Luis Obispo, CA, Los Angeles, CA and Santa Monica, CA and other places. NPI 1720013717. 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 Arnold Baas, 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

Cardiovascular Disease (Cardiology)Primary specialty
YesAccepts Medicare assignment
YesOffers telehealth
37Years since medical school (graduated 1989)
University Of Texas Southwestern Medical School At DallasMedical school
MaleGender (as listed)
The Regents of the University of CaliforniaGroup practice

Quick answers

Which hospitals does Arnold Baas work at?
Medicare's official clinician data lists Arnold Baas at 4 hospitals: French Hospital Medical Center, Ronald Reagan UCLA Medical Center, Santa Monica - UCLA Med Ctr & Orthopaedic Hospital and UCLA West Valley Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Arnold Baas see patients?
Medicare's clinician data lists 10 practice locations, including Los Angeles, CA, Encino, CA and Santa Monica, CA. Call before your visit to confirm the address.
What is Arnold Baas's specialty?
Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty, and also Internal Medicine.
Does Arnold Baas accept Medicare assignment?
Yes. Medicare's clinician data says Arnold Baas 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 Arnold Baas offer telehealth?
Medicare's clinician data says Arnold Baas offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Arnold Baas?
(310) 825-7922, as listed in official Medicare / NPI Registry data.
What is Arnold Baas's NPI number?
1720013717. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Arnold Baas works

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

Group practices

Medicare enrollment lists Arnold Baas 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 Cardiovascular Disease (Cardiology) doctors in California →

Other cardiologists in Los Angeles

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

All cardiologists in Los Angeles →

Clinician information

CredentialMD
Medical schoolUniversity Of Texas Southwestern Medical School At Dallas
Graduation year1989
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1720013717
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