# Alejandra Valentina Diaz Sierra, MD

Source: https://ourhealthnetwork.com/doctor/alejandra-diazsierra-md-1457978512
NPI: 1457978512
Data source: CMS NPI Registry (NPPES), refreshed monthly

## Quick facts

Alejandra Valentina Diaz Sierra, MD is a internal medicine based in Chicago, IL with NPI 1457978512.

## Profile

- Primary specialty: Internal Medicine
- Credential: MD
- Gender: Female
- NPI: 1457978512 ([NPPES record](https://npiregistry.cms.hhs.gov/provider-view/1457978512))

## Practice and contact

- Address: 3134 N Clark St, Chicago, IL, 606574414
- Phone: (773) 880-9722

## Insurance accepted (1 networks)

This provider is listed in the following insurance carriers’ published networks and plan directories:

- [Aetna](https://ourhealthnetwork.com/insurance/aetna) — 14 plans

To verify a specific plan covers Alejandra Valentina Diaz Sierra, use the [OurHealthNetwork Insurance Matcher](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1457978512).

## Industry payments disclosure (CMS Open Payments)

Per CMS Open Payments data (most recent year 2024), this provider has received 14 disclosed payments from medical industry sources totaling approximately $652.

Largest disclosed payer: Abbott Laboratories ($204 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 CHICAGO, IL](https://ourhealthnetwork.com/internal-medicine/il/chicago)
- [Find insurance plans that cover this doctor](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1457978512)
- [Browse all 5.5M US healthcare providers](https://ourhealthnetwork.com/find-doctors)
- [About our data and methodology](https://ourhealthnetwork.com/methodology)