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Family Practitioner, Primary Care Doctor, General Practitioner
32 years of experience
Accepting new patients
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Patient Reviews

Patient comments (4)

The overall average patient rating of Dr. Ruben Casabar is Good. Dr. Casabar has been reviewed by 17 patients who have provided 4 comments. The rating is 3.5 out of 5 stars.

Patient Ratings
Ease of Appointment 3.5
Promptness 3.3
Courteous Staff 3.4
Accurate Diagnosis 4.3
Bedside Manner 4.3
Spends Time with Me 4.3
Follows Up After Visit 3.9

Specialties & Research

  • He has special expertise in 1 area:
  • Flu (Human Influenza)

Education & Awards

Dr. Casabar graduated from University Of Santo Tomas, Manila. He has 4 awards.

Patients' Choice Award (2008 - 2011)
Bridges to Excellence Recognition
Physician Office Systems Recognition (2014 - 2016)
Level II
NCQA Physician Practice Connections - Patient Centered Medical Home (2014 - 2017)
On-Time Doctor Award (2014)


Dr. Casabar has 20 hospital affiliations:

  • St. Francis Medical Center 
  • Presbyterian Intercommunity Hospital 


  • Filipino
  • Tagalog
  • Spanish

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Additional Information
Dr. Ruben Sangalang Casabar MD is a male Family Practitioner, has 32 years of experience and practices in Family Medicine and General Practice.
Where does Dr. Ruben S. Casabar practice?
Dr. Ruben Casabar has 2 office locations.
Dr. Ruben Casabar practices Family Medicine and General Practice near Los Angeles, CA.
Additional practice locations include: Wilmington, CA.
See Los Angeles Family Physicians and Los Angeles General Practitioners.