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12 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

  • Currently 4 of 4 stars
Patient comments (3)

The overall average patient rating of Dr. Sean To is Excellent. Dr. To has been reviewed by 696 patients who have provided 3 comments. The rating is 4 out of 4 stars.

Patient Ratings
Ease of Appointment 2.8
  • Currently 2.75 of 4 stars
Promptness 3.3
  • Currently 3.25 of 4 stars
Courteous Staff 3.3
  • Currently 3.25 of 4 stars
Accurate Diagnosis 3.5
  • Currently 3.5 of 4 stars
Bedside Manner 3.8
  • Currently 3.75 of 4 stars
Spends Time with Me 3.8
  • Currently 3.75 of 4 stars
Follows Up After Visit 3.0
  • Currently 3 of 4 stars

Specialties & Research

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

Education & Awards

Dr. To graduated from Rosalind Franklin University, North Chicago. He has 2 awards.

Patients' Choice Award (2008, 2013 - 2014)
Compassionate Doctor Recognition (2013)


Dr. To has 7 hospital affiliations:

  • Southwest Healthcare Sys-Murrietta 
  • San Antonio Community Hospital 


  • Chinese
  • Mandarin
  • Vietnamese

> > > > Dr. Sean To, MD

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Additional Information
Dr. Sean Sang-Van To MD is a male Internist, has 12 years of experience and practices in Internal Medicine.
Where does Dr. Sean S. To practice?
Dr. Sean To has 4 office locations.
Dr. Sean To practices Internal Medicine near Murrieta, CA.
Additional practice locations include: Rancho Cucamonga, CA and Ontario, CA.
See Murrieta Internists.