Sopida Andronaco, MSN, RN, CPHQ
Director of Performance Improvement and
Clinical Outcomes
Steven L. Barnett, MD
Chief Medical Officer
Alan H. Beyer, MD
Community Education and Outreach Services Liaison
Robert Cho, MD
Department of Medicine Chair
Medical Director – Hospitalist Program
Kim Dinh, PharmD
Director of Pharmacy
David Gazzaniga, MD
Division Chief of Sports Medicine
Robert S. Gorab, MD
Immediate Past Chief Medical Officer
Tom & Mayumi Adams Endowed Chair in
Orthopedic Surgery
William Gray, RN
Executive Director of ASC MSO Operations Officer
Jennifer Greenlief
Director, Business Development and Strategic Partnerships
Sean Guerrero, MHA
Senior Principal of Business Intelligence, Strategic Analytics and Reporting
Klane Hales, MD
Co-Medical Director of Anesthesiology
Maggie Harris, EJD
Senior Principal Compliance and Contracts
Tze Ip, MD
Department of Surgery Chair
Bianca Irizarry, MHA, CPCS
Director of Medical Staff Services
Hafiz Kassam, MD
Program Director of Shoulder Reconstruction
Ewa Kontny, MD
Chief of Staff
Kim Mikes, MBA, RN
Chief Executive Officer
Alina Miller, MHI, BSN, RN
Vice President, Chief Nursing Officer
Nader Nassif, MD
Immediate Past Chief of Staff
Division Chief of Joint Replacement
Tina Nguyen, MHA
Director, ASC Business Office Operations
Susanne Porter, FNP-BC
Medical Director of Allied Health
Philip Robinson, MD, FIDSA
Medical Director of Infection Prevention and
Hospital Epidemiology
Terry Roth, MSN, RN, CNOR
Executive Director, Perioperative Services
Travis Scudday, MD
Chief of Staff-Elect
Jeremy Smith, MD
Chair, Department of Surgery Division Chief of Surgical Spine
Leighton Smith, MD
Co-Medical Director of Anesthesiology
Ann Marie Svolos, PhD, RN
Principal, Risk, Accreditation, Regulatory and Corporate Compliance
Christine Wages, Esq.
Vice President, Chief Legal Officer
HOI Leadership Team as of November 2025