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Dr. Sean To, MD

Dr. Sean To, MD

Internal Medicine*
25+ years of experience

Dr. Sean To, MD is an internist in Rancho Cucamonga, CA and has over 25 years of experience in the medical field. He graduated from Rosalind Franklin University Chicago Medical School in 1998. He is affiliated with San Antonio Regional Hospital. He is accepting new patients and telehealth appointments.

3.4 Star Rating
Based on 20 reviews 3.4 Star Rating (20 reviews)

Practice

8283 Grove Ave Ste 201 Rancho Cucamonga, CA 91730
Telehealth available
(909) 981-6644

At a Glance

  • Offers Telehealth
    This doctor offers telehealth appointments. Call the office to schedule an appointment.
  • Practices at Highly Recommended Hospital
    Patients recommend this hospital to family and friends. • See hospitals
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Dr. To's Reviews

Likelihood to recommend Dr. To

3.5

20 ratings, 7 with a written review
5 Star
50%
50%
4 Star
5%
5%
3 Star
10%
10%
2 Star
10%
10%
1 Star
25%
25%

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RecentHighestLowestMost Helpful
What went well
No results
What could be improved
No results
Helpful
Feb 05, 2025
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What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 person found this helpful
Helpful
Diana – May 08, 2024
×Post a ResponseAre you Dr. Sean To, MD?
What went well
No results
What could be improved
  • Difficult to schedule appointment
2 people found this helpful
Helpful
Oct 17, 2022
×Post a ResponseAre you Dr. Sean To, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
2 people found this helpful
Helpful
Pam – Jan 31, 2020
×Post a ResponseAre you Dr. Sean To, MD?
What went well
  • Listened & answered questions
  • Explained conditions well
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
  • Difficult to schedule appointment
2 people found this helpful
Helpful
Rita Bishop – Sep 25, 2019
×Post a ResponseAre you Dr. Sean To, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
1 person found this helpful
Helpful
Juliann Marks – Sep 04, 2019
×Post a ResponseAre you Dr. Sean To, MD?
What went well
No results
What could be improved
No results
1 person found this helpful
Helpful
May 03, 2019
×Post a ResponseAre you Dr. Sean To, MD?

Leave a review

How was your experience with Dr. To?

Know Before You Go

About Me

care philosophy

I am proud to be part of the Optum family of primary care doctors, specialists, and care teams focused on providing care for people ages 65+. At Optum, my team and I help you reach your personal health goals. We focus on your total well-being while...read more

  • Internal Medicine

  • Geriatric Medicine

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

  • Rosalind Franklin University Chicago Medical School

    Medical School, 1998
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.

Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.

Learn more about medical license public record check

  • English

  • Cantonese

  • Chinese

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Locations

Practice

Grove Internal Medicine Inc.8283 Grove Ave Ste 201 Rancho Cucamonga, CA 91730
1

Practice

Office1317 S Diamond Bar Blvd Unit 4462 Diamond Bar, CA 91765
2

Practice

Sean S. To. M.D. Inc.5562 Philadelphia St Ste 201 Chino, CA 91710
3

Affiliated Hospitals

  • San Antonio Regional Hospital

    999 San Bernardino Rd
    Upland, CA 91786

    How patients felt about the care they received at this hospital.

    85%
    Patients said they were given information about recovering at home

    1% higher than the national average

    75%
    Patients said that nurses always listened to them and explained things well
    View all patient feedback
Learn more about how Healthgrades measures Hospital Quality