Browse Health
14 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. Sean To is Good. Dr. To has been reviewed by 14 patients who have provided 4 comments. The rating is 4 out of 5 stars.

Patient Ratings
Ease of Appointment 3.7
Promptness 4.3
Courteous Staff 4.3
Accurate Diagnosis 4.2
Bedside Manner 4.4
Spends Time with Me 4.6
Follows Up After Visit 4.1

Education & Awards

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

Patients' Choice Award (2008, 2013 - 2015)
Compassionate Doctor Recognition (2013, 2015)


Dr. To has 7 hospital affiliations:

  • Southwest Healthcare Sys-Murrietta 
  • San Antonio Community Hospital 


  • Chinese
  • Mandarin
  • Vietnamese

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Additional Information
Dr. Sean S To MD is a male Internist, has 14 years of experience and practices in Internal Medicine.
Where does Dr. Sean S. To practice?
Dr. Sean To has 1 office location.
Dr. Sean To practices Internal Medicine near Rancho Cucamonga, CA.
See Rancho Cucamonga Internists.