# Stephen In Sun Ryu, MD

Source: https://ourhealthnetwork.com/doctor/stephen-ryu-md-1134153505
NPI: 1134153505
Data source: CMS NPI Registry (DAC), refreshed monthly

## Quick facts

Stephen In Sun Ryu, MD is a neurosurgery based in Palo Alto, CA practicing at Sutter Bay Medical Foundation with NPI 1134153505 and offers telehealth visits.

## Profile

- Primary specialty: Neurosurgery
- Credential: MD
- Gender: Male
- Medical school: UNIVERSITY OF CALIFORNIA, SAN DIEGO SCHOOL OF MEDICINE
- Graduation year: 1999
- Telehealth: Yes
- NPI: 1134153505 ([NPPES record](https://npiregistry.cms.hhs.gov/provider-view/1134153505))

## Practice and contact

- Practice name: Sutter Bay Medical Foundation
- Address: 795 El Camino Real, Palo Alto, CA, 943012302
- Phone: (415) 600-1020
- Group practice size: 3727 members

## Insurance accepted (6 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) — 10 plans
- [Aetna](https://ourhealthnetwork.com/insurance/aetna) — 7 plans
- [Blue Shield of California](https://ourhealthnetwork.com/insurance/blue-shield-of-california) — 2 plans
- [UnitedHealthcare](https://ourhealthnetwork.com/insurance/unitedhealthcare) — 2 plans
- [Medicare](https://ourhealthnetwork.com/insurance/medicare) — 1 plan
- [UMR](https://ourhealthnetwork.com/insurance/umr) — 1 plan

To verify a specific plan covers Stephen In Sun Ryu, use the [OurHealthNetwork Insurance Matcher](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1134153505).

## Industry payments disclosure (CMS Open Payments)

Per CMS Open Payments data (most recent year 2024), this provider has received 74 disclosed payments from medical industry sources totaling approximately $57,301.

Largest disclosed payer: Stryker Corporation ($23,180 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 Neurosurgery doctors in PALO ALTO, CA](https://ourhealthnetwork.com/neurosurgery/ca/palo-alto)
- [Find insurance plans that cover this doctor](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1134153505)
- [Browse all 5.5M US healthcare providers](https://ourhealthnetwork.com/find-doctors)
- [About our data and methodology](https://ourhealthnetwork.com/methodology)