Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Sean S to, MD, Inc

Organization Internal Medicine Physician · NPI 1730393661

Sean S to, MD, Inc is an Internal Medicine Physician in Chino, California. Licensed in California. Registered with an NPI since 2007.

Licensed in
CA
In the registry since
2007
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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Practice location Address checks out

13768 Roswell Ave 109
Chino, CA 91710-1401
Phone: (909) 628-2062
Fax: (909) 628-2053
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X (CA)

Record details

NPI number1730393661
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Sean To — President · (909) 628-2062
NPI enumeratedMay 10, 2007
Last updated in NPPESAugust 22, 2020
Mailing address13768 Roswell Ave, 109, Chino, CA 91710-1401

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