Health care
We provide affordable and personalized care
How can we help?
Find careFind doctors, specialists, locations, urgent care and other services near you
Patient portal sign-inMake appointments, get medical records, message your care team and more
Get the right kind of careFrom primary to virtual to urgent care, learn where to go and when
Helpful links
Pay a billManage your medical bills the fast, easy way
Patient supportFind contact information and frequently asked questions
11 things to keep in mind for a more healthy lifestyle More articles
Financial
Accounts to help you save and pay for health care expenses
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Sign in to your accountManage your HSA, check your balance, transfer a balance and more
Explore account typesCompare health benefit accounts and learn how each option can work for you
Pay a billThe fast, easy way to pay your medical bills online
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ResourcesFind contribution limits, savings tools, calculators and eligible expenses
Account supportFind contact information and frequently asked questions
Mobile app
Manage your account on the go
Get the new mobile app and manage your health accounts anywhere
Pharmacy
We make it easy to get medications you need, when and where you need them
How can we help?
Home Delivery PharmacyRegister or sign in, fill your prescription and have it delivered right to your door
Specialty PharmacyRegister or sign in and fill your specialty prescriptions for complex therapies
Infusion PharmacyRegister or sign in and manage your infusion therapies
Genoa HealthcareManage your medications for mental health and complex conditions
Helpful links
Optum RxFor people with pharmacy insurance benefits through Optum Rx
Track ordersTrack your home delivery and specialty order
Pharmacy supportFind contact information and answers to frequently asked questions
Mobile app
Optum Rx on the go
Request refills, track order status, manage billing information and much more.

Customer support

Sean To, MD

Sean S. To, M.D., Inc.

Optum Care Network California

Address

:

5562 Philadelphia St,

Chino, CA, 91710

Languages Spoken

:

Chinese

,

Mandarin

,

Vietnamese

Clinic Phone

:

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Accepts most Medicare plans

Medical School

Chicago Medical School - Finch University

Fellowship

Akron General Medical Center

Care Designed Around You

We personalize care around your unique health goals, lifestyle and medical conditions. Your doctor works with the latest data, science and technology to help you get the care and treatments you need to prevent illness. Your doctor and care team will help you get better care because keeping you healthy is our greatest reward.

Our Location

Sean S. To, M.D., Inc.

5562 Philadelphia St, Chino CA 91710