About Us

About us

Founded in 2016, Cornerstone's mission is to provide value

to community-based oncology practices in order to help maximize the quality of patient care. The mission is focused on four corporate imperatives: 


Supporting independence for Community-based Oncology practices.


Aggregating group purchasing power to bring significant, bottom-line growth to network members


Providing services that help diversify income sources and increase practice efficiency


Delivering best practices, benchmarking metrics, market data and peer consulting services

Leadership Team

A focus on delivering value to community oncology requires a full-time team of experts with combined extensive experience in practice support, value program development, pharma and private business operations.

Joel Schaedler

Chief Executive Officer

Niki Lasky

Chief Operating Officer

Bryan Martinez

Chief Commercial Officer

Anthony Gucciardo

Vice President

Leah Warner

Director of Business Operations

Chelsea Brondeau

Director of Operation

Angela Brakhop Phd

Director of Scientific Communications

Cornerstone Speakers

Cornerstone Specialty Network, LLC leadership works alongside its Partner Advisory Group consisting of Community Oncologists and their Practice Managers

Tarek Mekhail, MD

AdventHealth Medical Group
Medical Director (Thoracic Cancer), Medical Oncologist

Sujith R. Kalmadi, MD

Ironwood Cancer and Research Centers, Phoenix, AZ
Board certified in Internal Medicine, Hematology and Medical Oncology

Eric S. Schaefer, MD

Highlands Oncology Group Fayetteville, AR Board certified in Internal Medicine, Hematology and Medical Oncology

Dr. Pankit Vachhani

University of Alabama at Birmingham (UAB)
Board certified in Internal Medicine, Hematology and Medical Oncology

DONNA Foundation

Cornerstone Specialty Network is proud to announce a multi-year sponsorship of the DONNA Foundation. The DONNA Foundation’s mission is to provide financial assistance and support to those living with breast cancer and fund ground breaking breast cancer research.

We are excited about this long-term commitment as it aligns with our mission as well – to help maximize the quality of patient care, which also includes clinical research initiatives. Cornerstone’s leadership attended the National Marathon on February 7th– 9th and it was inspiring to see the positivity and dedication from all of those who were involved with the event.

Since its founding in 2006, The Donna Foundation has helped over 13,000 families, provided $3.5 million in financial support and has donated $3.3 million supporting breast cancer research. In addition to supporting breast cancer research, the Donna Foundation provides much-needed case management services to patients, caregivers and their providers. The foundation provides free access to a team of professional case managers who have an insurance background with coding and billing expertise. Using their knowledge of reimbursement issues, this dedicated team helps patients diagnosed with breast cancer navigate the economic issues associated with their diagnosis.

To learn more about the Donna Foundation please visit their website at thedonnafoundation.org.