Corporate Leaders

Dr Nick Zenarosa
Nick Zenarosa, MD, FACEP
Founder and Chief Executive Officer

Founder and chief executive officer of Integrative Emergency Services, LLC (IES), Dr. Nick Zenarosa currently serves as the chair of emergency medicine at John Peter Smith Hospital in Fort Worth, where he oversees the Emergency Department, the Clinical Decision Unit, Urgent Care Emergency Department and the Emergency Medicine Residency Program.  Additionally, Zenarosa is the system medical director of emergency services for Baylor Scott & White Health.  Zenarosa has overseen more than 20 regional and system-level initiatives for more than one million patient visits.

Zenarosa’s career in emergency medicine began in 1995. Since then he has served as both faculty and attending staff at multiple teaching and trauma centers throughout Texas and is currently practicing at Baylor University Medical Center, John Peter Smith Hospital, and Baylor Scott & White Medical Center – McKinney.

A fellow of the American College of Emergency Physicians, Zenarosa received his medical degree from the University of Illinois at Chicago College of Medicine. He completed an internal medicine residency at Parkland Memorial Hospital in Dallas and an emergency medicine residency at Carolinas Medical Center in Charlotte, where he was also the chief resident. Board certified by the American Board of Emergency Medicine and the American Board of Internal medicine, Zenarosa also holds a master’s degree in molecular biology and a bachelor’s degree in human physiology, both from the University of Illinois.

Bob Timmermann

An entrepreneur with more than 25 years of experience in the health care industry, Bob Timmermann is the president of Integrative Emergency Services (IES). Before joining IES, he served as president and chief executive officer of Global Pharmaceutical Solutions, a healthcare IT company that he founded in 2007, which specialized in comprehensive end-to-end Medicare Part D enrollment services and solutions.

Timmermann’s expertise encompasses physician practice management, healthcare IT/consulting, revenue cycle management, specialty pharmacy distribution, and pharmaceutical sales. During his career, he has built several successful health care companies, and has served on numerous boards including First Financial Healthcare, Bio Partners in Care, Partners in Care Pharmacy, and Global Pharmaceutical Solutions. Timmermann was instrumental in the sales of Bio Partners in Care, Partners in Care Pharmacy and Global Pharmaceutical Solutions.

Timmermann received his degree in business administration, finance and marketing from Southern Illinois University Edwardsville.

Gregg Kirkland
Chief Financial Officer

Gregg Kirkland is chief financial officer of Integrative Emergency Services (IES) and joined the company after holding multiple executive positions in banking and law. Prior to IES, Kirkland served as chief executive officer of Simmons Hanly Conroy LLC, one of the nation’s leading mesothelioma law firms. During his tenure with Simmons Hanly Conroy, the firm grew significantly, increasing the number of attorneys sixfold and expanding into three additional markets.

Kirkland began his career as an accountant at Farmers and Merchants Bank before his promotion to chief financial officer. He also held chief financial officer positions with Bank One and Chase Bank affiliates, and was chief operating officer for the start-up Partners Bank, which was purchased by First Clover Leaf Bank.

A graduate of Eastern Illinois University, Kirkland received the 2011 Distinguished Alumni Award from his alma mater.

Victoria Feather
Victoria Feather
Chief Operating Officer

With more than 20 years of experience in emergency department support management, Victoria Feather serves as chief operating officer and has been with Integrative Emergency Services (IES) since its inception in 2011. She works with emergency departments across the United States, where she is responsible for overseeing departmental operations and implementation of best practices. Feather manages all aspects of operations to support hospitals and providers, including recruiting, credentialing, scheduling, enrollment, human resources, benefits and site administration. Feather has worked in every facet of emergency department operations and has worked with several of the industry’s largest contract management groups.  She started her career in scheduling and moved quickly through the ranks including roles as a recruiter, regional manager, director of operations and director of management services.

Victoria earned a bachelor’s degree in political science from the University of North Texas and has been an active community volunteer with organizations including Court Appointed Special Advocates (CASA) and Big Brothers Big Sisters of America.

Clare Elizabeth Graca
Chief Business Development Officer

As chief business development officer, Clare Graca brings her successful record of operations, change management and revenue enhancement to Integrative Emergency Services (IES). Most recently, Graca was managing director of development for Harvard Business School (HBS), where she was responsible for both frontline fundraising and operational support during HBS’s billion dollar campaign, a part of Harvard’s overarching $6.5 billion campaign.  Believed to be the largest campaign by any business school, the five year $1 billion goal was achieved in just over three years.

Recognized as an industry leader by the Association for Healthcare Philanthropy, Graca spent eight years at the Baylor Health Care System Foundation, serving in multiple roles from operations to development. During her tenure, she managed campaigns of varying types and sizes, including a $250 million comprehensive campaign – the first of its kind in Baylor Health Care’s 110-year history.  Graca also held executive positions with J.A. Majors, a division of Baker & Taylor Inc., as well as Omni Hotels and Bank of America.

A certified treasury professional, Graca has served on the boards of the Dallas Lighthouse for the Blind, Dallas Services, and Dallas Day School.  A graduate of the Dallas Regional Chamber’s Leadership Dallas program, Clare also has been a mentor for the Young Professionals program.

Judith A. Keller
Judith A. Keller, RN, DNP, CEN
Chief Nursing Officer

As the chief nursing officer for Integrative Emergency Services (IES), Judith Keller is responsible for clinical programs, including the implementation of ReMEDI, the proprietary resource-matching program and process for Emergency Departments.  Keller’s 35 years of nursing and leadership experience brings efficiency and clarity to her work at IES.

Keller’s experience prior to joining IES includes several leadership roles, from serving as an assistant vice president to a consultant in a wide range of clinical areas. In these positions, she analyzed hospital patient flow process, consulted in emergency departments, oversaw hospital case management and implemented training and development for process improvement and project management.

Recently inducted in to the International Nurses Association, Keller earned a Bachelor of Science in nursing from the Medical College of Georgia in Augusta, a Master of Science in nursing from Georgia State University in Atlanta, and her Doctor of Nursing Practice from Walden University in Minneapolis.

Matt C. Innes
General Counsel

Matt Innes is general counsel for Integrative Emergency Services (IES). He is responsible for leading strategic legal initiatives and is involved in reviewing, negotiating and drafting contracts with physician groups. Prior to IES, Innes worked as corporate counsel for Questcare Medical Services, PLLC, and as an attorney with Modjarrad & Abusaad Law Firm, where he was in charge of a caseload of approximately 105 civil litigation cases.

Innes served in the United States Airforce as crew commander and lead officer for the testing and evaluation of the Air Force’s $480 million upgrade of the first dual mission missile defense and space surveillance radar. He earned a Bachelor of Arts in international studies from American University and a Juris Doctor degree from Texas Tech School of Law.