Staff + Governance

Executive Team

photo of Fred Rachman, MD Chief Executive Officer | AllianceChicago
Fred D. Rachman, MD
Chief Executive Officer
photo of Andrew Hamilton, RN, BSN, MS | AllianceChicago
Andrew Hamilton, RN, BSN, MS
Chief Informatics Officer/Deputy Director
image of Margaret Castrovillari, CPA | AllianceChicago

Margaret S. Castrovillari, CPA, MBA
Chief Financial Officer

image of Nivedita Mohanty, MD | AllianceChicago
Nivedita Mohanty, MD
Chief Research Officer and Director of Evidence Based Practice
image of Timothy Long, MD | AllianceChicago
Timothy Long, MD
Chief Clinical Officer
Elizabeth (Liz) Adetoro, MPH
Research Coordinator
Janet C. Baxter, MBA, RHIA, CHTS-PW
Manager of Health Policy Implementation
Jaimie Bubb, RN, BSN, MS
HIT Operations Specialist
Jeremy Carr
Senior Application Analyst
Sebastian Clavijo
Clinical Programmer

Jacob Doubenmier
Systems Analyst

Maricela Espinoza,

HIT Analyst Lead
Nancy Gifford, RHIA
Director of HIT Services
Amro Hassan
Senior SQL Data Analyst
Claudria S. Hurt
HR/Business Operations Manager
Karen Iversen, MPH, PCMH CCE
Practice Transformation Coach

Ryan Jaeger
Senior SQL Data Analyst and Data Warehouse Product Manager

Christina Kim, MPH, PCMH CCE
Practice Optimization Coach

Jenya Lazarova
Administrative Coordinator

Courtney Leonard, MPH, MHA
HIT Coordinator

Todd Locey
Application Analyst II
Elizabeth McKnight, MMI
Health Informatics Specialist
Ekem Merchant-Bleiberg
Director of EHRS Operations
Jin Nam, RN, MS
Director of Practice Transformation
Vonda Norman
Administrative Coordinator

Michael Nudo, MNA, CNP
Grants & Resource Development Manager

Roxane Padilla
Research Coordinator

Jeff Panzer, MD, MS
Director of Innovation

Jessica Park, MPH
Informatics Coordinator
Christopher Pauwels, MBA
Director of Business/ Program Development
Quenton Richardson
Technical Support Specialist
Sarah Rittner, MA
Assistant Research Director
Carlos Salgado
HIT Implementation Specialist
Star A. Sandifer
Accounting Manager
Mark Steinberg
Data Architect
Matthew Sterling
Director of Information Technology

Cori Stewart
SQL Data Analyst

Natalie Swiencki, MNA
Financial Analyst
Azin Tanni, RN, MSN, INS
Clinical Systems Analyst
Sandra Tilmon, MPH
Data Warehouse Business Analyst
Latoya Tyler, RHIT
HIT Analyst
Shane S. Walters, MHS
HIT Analyst

Andrea Wilson, MS
Tech Consultant/ Scrum Master

Amy Yarrington, MA
HIT Coordinator

AllianceChicago Governance


AllianceChicago operates under the ownership and guidance of our four non-profit 501 (c) (3) founding members, and is governed by a Board of Managers that includes the Chief Executive Officers of each of the founding member Centers, as well as the AllianceChicago Chief Executive Officer and the Near North Health Service Corporation Director of Finance and Accounting.


AllianceChicago Board of Managers


Berneice Mills-Thomas, RN, MSM, MPH, MBA, Chair
Chief Executive Officer,
Near North Health Service Corporation

Ed Stellon, MS, MA, CADC, Vice-Chair
Vice President and Executive Director,
Heartland Health Outreach

Lee Francis, MD, MPH, Treasurer
President and Chief Executive Officer,
Erie Family Health Centers

David Munar, Secretary
President and Chief Executive Officer,
Howard Brown Health Center


Ex-Officio Members


Mary Kay Gilbert, MBA
Chief Growth Officer,
Heartland Health Outreach

Nicole Kazee, PhD
Vice President of Strategy and Business Development,
Erie Family Health Center

Kristin Keglovitz Baker, PA-C, AAHIVS
Chief Operating Officer and Certified Physican Assistant,
Howard Brown Health

Fred D. Rachman, MD
Chief Executive Officer,

Wahabi Tijani, MBA
Director of Finance and Accounting,
Near North Health Service Corporation