The ER-One Executive Team

Ernest Sorini, MD, JD


Dr. Sorini served as Chairman of ER-One. With over 30 years of healthcare leadership experience, Dr. Sorini guided the company since 1990 when he founded ER-One. Dr. Sorini earned his medical degree at the Medical College of Wisconsin in 1974. He also held a master’s degree from the University of Michigan, Ann Arbor and a law degree from the University of Honolulu, School of Law. Dr. Sorini was board certified in emergency medicine. He devoted his career to raising standards of healthcare, responsible for innovations such as the healthcare sector changing 30 Minute Guarantee. Throughout his career, he had numerous teaching and administrative positions serving as Chief of Emergency Services at Oakwood Annapolis Hospital, Regional Medical Director in Traverse City, Michigan, and Clinical Instructor, Emergency Medicine at the University of Michigan Medical Center. He served as the Executive Emergency Department Medical Director at Oakwood Health Center, Annapolis Center, Heritage Center and Southshore Medical Center. Dr. Sorini also served as Chairman of Emergency Service at Oakwood Hospital, Inc. In addition, he was appointed by Governor Jennifer Granholm to the Michigan Board of Medicine and Disciplinary Subcommittee of MBOM.

John Bauer, MD, FACEP

Chief Medical Officer

Dr. Bauer serves as Chief Medical Officer of ER-One. In this role, he is responsible for developing and promoting best clinical practices throughout the organization. Board certified in emergency medicine, his experience includes 16 years at St. John Macomb Hospital, including 12 as Medical Director of Emergency Services, working clinically during his entire employment. Dr. Bauer was a member of the St. John Health System Steering Committee, charged with adopting a complete electronic medical record system. He also served as Director of Quality for Macomb Hospital for two years and Assistant Director of the Macomb County EMS. Dr. Bauer spent two years on the Board of Directors of the Macomb County Health Plan, providing healthcare for low income families. He completed his residency through the Michigan State University Affiliated Program in Lansing, Michigan and received both his undergraduate and medical degrees from Wayne State University in Detroit, Michigan.

Kelly Sorini

Chief Executive Officer

Ms. Sorini serves as Chief Executive Officer of Professional Emergency Care Inc. She is responsible for all financial, business and administrative functions in this role. Since founding the company in 1990 (with Dr. Ernest Sorini), Kelly has held various senior management positions and has been closely involved in all aspects of the company since then. Kelly also serves as CEO of NetMD Business, a billing, and ED management group. At NetMD business Kelly manages a staff that includes scheduling, credentialing, billing, coding, collections, human resources, and accounting. With a hands-on approach and a deep understanding of the industry, Kelly efficiently and effectively manages all day-to-day operations. Kelly also owns Oaklawn Inc. – a real estate investment company.

Martin Cobb

Chief Financial Officer

Martin Cobb provides CFO and advisory services to the company. Martin is responsible for accounting, financing, reporting, performance measurement, and analysis. With over 20 years of financial management experience in healthcare, he is also the founder of Financial Management Consulting LLC, a consulting firm focused on providing senior-level financial expertise to mid-sized organizations. Martin has completed over seventy consulting engagements as interim and fractional CFO and has acted as a key business advisor to the Board. Before his consulting career, Martin served as CFO and Controller with several groups. Martin started his financial career and was educated in London, England. Martin is a Certified Management Accountant (CMA) and a Certified Financial Manager (CFM) and holds the designation of Certified Internal Auditor from the Institute of Internal Auditors.

Emergency Department Staffing

It's the 'front door' to your hospital. ER-One has been delivering an outstanding patient experience for more than 30+ years.

Physicians Careers

5 out of 5 doctors recommend a career with ER-One.

NP/PA Careers

If you are a Mid-level Provider who seeks a dynamic and rewarding career, ER-One is the prescription for your success.


Email Us


7954 North Lilley Road
Canton MI 48187


© 2021 ER-One. All Rights Reserved.