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SEAN S. TO., M.D., INC
NPI 1841809597
Internal Medicine in Chino, CA

Active since July 29, 2020
5562 PHILADELPHIA ST STE 201, CHINO, CA 91710(909) 988-1000(909) 988-1001 Get Directions Write a Review

NPPES record last updated: July 29, 2020. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Sean S. To., M.d., Inc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SEAN S. TO., M.D., INC (NPI 1841809597) is a healthcare organization registered as an internal medicine in Chino, California and active in the NPI registry since July 2020. The organization lists Sean Sang Van To, President/ Owner, as its authorized official.

NPPES Registry Identity

NPI1841809597
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameSEAN S. TO., M.D., INC
Location Address5562 PHILADELPHIA ST STE 201Chino, CA 91710
Mailing Address1317 S. Diamond Bar Blvd Ste. 4462Diamond Bar, CA 91765 · (626) 652-8871 · Fax (909) 988-1001
Phone(909) 988-1000
Fax(909) 988-1001
Organization SubpartNo
Authorized OfficialSean Sang Van ToPresident/ Owner · (951) 834-8515
Enumeration DateJuly 29, 2020
NPPES CertifiedJuly 29, 2020
✔ NPI 1841809597 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
5562 PHILADELPHIA ST STE 201, Chino, CA 91710
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SEAN S. TO, MD INC
Internal Medicine
5562 PHILADELPHIA ST STE 201
CHINO, CA 91710
San Bernardino County (909) 988-1000
DR. SEAN S TO M.D.
Internal Medicine
5562 PHILADELPHIA ST STE 201
CHINO, CA 91710
San Bernardino County (909) 988-1000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Sean S. To., M.D., Inc's NPI number?

The NPI number for Sean S. To., M.D., Inc is 1841809597. It was assigned to this organization in the NPPES registry on July 29, 2020.

Where is Sean S. To., M.D., Inc located?

Sean S. To., M.D., Inc is located at 5562 Philadelphia St Ste 201, Chino, CA 91710. The listed phone number is (909) 988-1000.

What is Sean S. To., M.D., Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for Sean S. To., M.D., Inc was last updated on July 29, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.