Casey Drennan
Assistant Chief Operating Officer at Parallon | San Antonio, Texas, United States
Casey Drennan’s Email & Phone Number
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Assistant Chief Operating Officer at Parallon in September 2023 - Present
Regional Patient Access Director at Parallon in January 2022 - September 2023
Patient Access Director of Virtual Registration at Parallon in September 2019 - January 2022
Insurance Verification Assistant Director at Parallon in December 2018 - September 2019
Insurance Verification Manager at Parallon in July 2017 - December 2018
Patient Access Manager at Parallon in February 2017 - July 2017
Manager in Training at Parallon in August 2016 - February 2017
General Administration Intern at CHRISTUS Health in June 2015 - August 2015
Western Governors University, August 2026
Texas A&M University, Bachelor of Business Administration (B.B.A.), August 2026
Parallon leverages extensive expertise across a broad portfolio of revenue cycle, contact center, and clinical and administrative shared services. As the administrative support platform for HCA Healthcare, Parallon helps enable providers to care for and improve human life in their communities. At Parallon, we continue to build upon our long track record of operational excellence by optimizing financial performance, leveraging the latest technology, navigating regulatory challenges and delivering solutions to support a positive patient experience. Parallon is proud to be part of HCA Healthcare, a leading healthcare organization that has been named one of the 2026 World’s Most Admired Companies™ by Fortune, one of 2026 World’s Most Ethical Companies® by Ethisphere, and a 2026 Military Friendly® Employer by Viqtory, Inc. Parallon has approximately 16,500 colleagues and serves roughly 340 hospitals and 1,900 physician practices. For more information about Parallon, visit Parallon.com.
Discover more about Parallon
AVP at Parallon
Corporate Automation Center of Excellence (ACoE) AVP, Automation Labor Management at Parallon
(November 2025 – Present)
Billing Manager at Parallon | Healthcare | Managed Projects for Revenue Cycle, Hospitals Systems, and Patients
Appeals Manager at Parallon
(December 2022 – Present)
Patient Access Director
Patient Access Director at Parallon
(March 2025 – Present)
Manager In Training | Parallon
Manager In Training at Parallon
(March 2024 – Present)
LEAD Associate at Parallon HCA Healthcare | University of Alabama Alum
Lead Associate at Parallon
(June 2025 – Present)
Assistant Director, Payment Compliance Operations & Automation
Assistant Director, Payment Compliance at Parallon
(June 2025 – Present)
What is Casey Drennan email address?
Email Casey Drennan at [email protected] and [email protected]. This email is the most updated Casey Drennan's email found in 2026.
What is Casey Drennan phone number?
Casey Drennan phone number is 2105316787.
How to contact Casey Drennan?
To contact Casey Drennan send an email to [email protected] or [email protected]. If you want to call Casey Drennan try calling on 2105316787. (updated on July 2026)
What company does Casey Drennan work for?
Casey Drennan works for Parallon.
What is Casey Drennan's role at Parallon?
Casey Drennan is Assistant Chief Operating Officer
What industry does Casey Drennan work in?
Casey Drennan works in the Hospital & Health Care industry.
