# Ronald S Greenwald, MD

Source: https://ourhealthnetwork.com/doctor/ronald-greenwald-md-1316954191
NPI: 1316954191
Data source: CMS NPI Registry (DAC), refreshed monthly

## Quick facts

Ronald S Greenwald, MD is a neurosurgery based in San Mateo, CA practicing at County Of San Mateo with NPI 1316954191.

## Profile

- Primary specialty: Neurosurgery
- Credential: MD
- Gender: Male
- Medical school: CHICAGO COLLEGE OF MEDICINE AND SURGERY
- Graduation year: 1979
- NPI: 1316954191 ([NPPES record](https://npiregistry.cms.hhs.gov/provider-view/1316954191))

## Practice and contact

- Practice name: County Of San Mateo
- Address: 22 W 39th Ave, Hos316ms, San Mateo, CA, 944034364
- Group practice size: 312 members

## Insurance accepted (7 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) — 8 plans
- [Blue Shield of California](https://ourhealthnetwork.com/insurance/blue-shield-of-california) — 3 plans
- [UMR](https://ourhealthnetwork.com/insurance/umr) — 3 plans
- [Oxford Health Plans (UHC)](https://ourhealthnetwork.com/insurance/oxford-health-plans-uhc) — 2 plans
- [Medicare](https://ourhealthnetwork.com/insurance/medicare) — 1 plan

To verify a specific plan covers Ronald S Greenwald, use the [OurHealthNetwork Insurance Matcher](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1316954191).

## Related on OurHealthNetwork

- [More Neurosurgery doctors in SAN MATEO, CA](https://ourhealthnetwork.com/neurosurgery/ca/san-mateo)
- [Find insurance plans that cover this doctor](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1316954191)
- [Browse all 5.5M US healthcare providers](https://ourhealthnetwork.com/find-doctors)
- [About our data and methodology](https://ourhealthnetwork.com/methodology)