# Sean S To, MD

Source: https://ourhealthnetwork.com/doctor/sean-to-md-1922163310
NPI: 1922163310
Data source: CMS NPI Registry (DAC), refreshed monthly

## Quick facts

Sean S To, MD is a internal medicine based in Rancho Cucamonga, CA with NPI 1922163310 and offers telehealth visits.

## Profile

- Primary specialty: Internal Medicine
- Credential: MD
- Gender: Male
- Medical school: R FRANKLIN UNIVERSITY OF MED & SCI/CHICAGO MEDICAL SCHOOL
- Graduation year: 1998
- Telehealth: Yes
- NPI: 1922163310 ([NPPES record](https://npiregistry.cms.hhs.gov/provider-view/1922163310))

## Practice and contact

- Address: 8283 Grove Ave, Suite 201, Rancho Cucamonga, CA, 917303140
- Phone: (909) 981-6644

## CMS quality measures (MIPS)

- Overall MIPS final score: 83.68/100
- Quality category score: 77.89/100
- Improvement Activities score: 40.00/100
- Cost category score: 75.0655/100

Source: CMS Quality Payment Program. MIPS scores reflect Medicare provider performance on quality, cost, and care improvement measures.

## Insurance accepted (8 networks)

This provider is in network with the following insurance carriers, based on federal Transparency in Coverage filings and FHIR provider directories:

- [Cigna](https://ourhealthnetwork.com/insurance/cigna) — 17 plans
- [UnitedHealthcare](https://ourhealthnetwork.com/insurance/unitedhealthcare) — 12 plans
- [Aetna](https://ourhealthnetwork.com/insurance/aetna) — 10 plans
- [Blue Shield of California](https://ourhealthnetwork.com/insurance/blue-shield-of-california) — 3 plans
- [Molina Healthcare](https://ourhealthnetwork.com/insurance/molina-healthcare) — 2 plans
- [Oxford Health Plans (UHC)](https://ourhealthnetwork.com/insurance/oxford-health-plans-uhc) — 2 plans
- [UMR](https://ourhealthnetwork.com/insurance/umr) — 2 plans
- [Medicare](https://ourhealthnetwork.com/insurance/medicare) — 1 plan

To verify a specific plan covers Sean S To, use the [OurHealthNetwork Insurance Matcher](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1922163310).

## Industry payments disclosure (CMS Open Payments)

Per CMS Open Payments data (most recent year 2024), this provider has received 47 disclosed payments from medical industry sources totaling approximately $1,239.

Largest disclosed payer: GlaxoSmithKline, LLC. ($365 cumulative).

Source: CMS Open Payments program (federal financial-transparency dataset). Industry payment disclosures do not imply any wrongdoing; many are legitimate consulting fees, research support, or speaker honoraria.

## Related on OurHealthNetwork

- [More Internal Medicine doctors in RANCHO CUCAMONGA, CA](https://ourhealthnetwork.com/internal-medicine/ca/rancho-cucamonga)
- [Find insurance plans that cover this doctor](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1922163310)
- [Browse all 5.5M US healthcare providers](https://ourhealthnetwork.com/find-doctors)
- [About our data and methodology](https://ourhealthnetwork.com/methodology)