D & CO - Key Persons


Aaron Milligan

Job Titles:
  • Partner

Amanda Pyle


Andrew Castillo

Job Titles:
  • Partner

Ashley Sonnen

Job Titles:
  • Auditor

Austin Dean

Job Titles:
  • Consultant

Bryan Williams

Job Titles:
  • Auditor

Carolyn Wood

Job Titles:
  • Consultant

Chris Dockal

Job Titles:
  • Consultant

Cole Abrahamson

Job Titles:
  • Auditor

Crystal Roach

Job Titles:
  • Consultant

D. Mark Havins

Job Titles:
  • Partner

Emma Merriott


Florence Ng

Job Titles:
  • Principal

Gage Reynolds

Job Titles:
  • Consultant

Greg Callaham

Job Titles:
  • Consultant

Hannah Emery

Job Titles:
  • Consultant

J. Brandon Durbin

Job Titles:
  • Partner
Brandon has over 30 years of accounting and consulting experience, primarily in healthcare. The consulting services have included non-reimbursement areas such as physician contracting and joint venture structures, physician group formation, hospital development, acquisitions and sales of hospitals, foundation structures, and many other services for community hospitals, investor-owned facilities, and health systems. Brandon leads our consulting practice, which includes development and strategic projects, joint ventures, reimbursement projects and Medicaid disproportionate share and supplemental payment programs. Brandon has consulted with the Medicare Payment Advisory Commission (MedPAC), served as a technical advisor for the Rural Hospitals Issues Group, a Federal Advisory Committee member for HRSA, a technical advisor to the Flex Program and to the University of North Carolina Health Policy Research Center. He has also served as an expert witness and provided court-admitted evidence in several trials and court proceedings. Additionally, he is involved with various health advocacy organizations as a speaker, board member and committee member.

J. Brent Fuller

Job Titles:
  • Partner
Brent has in excess of 20 years of experience in the Medicare reimbursement for acute care hospitals, cancer hospitals, academic medical centers, and many other specialty healthcare providers. Prior to joining our firm, Brent was the Regional Director of Audit Field Offices for Trailblazer Health Enterprises. This included all offices in Texas, New Mexico and Colorado. While with Trailblazer, Brent also was assigned to the Office of Inspector General for various healthcare audits. Brent led many audits dealing with highly complex and technical issues, including issues of graduate medical education, organ transplants and disproportionate share. He also worked closely on several occasions in his position at Trailblazer in assisting the Office of Inspector General with investigative manners related to Organ Transplant Cost, Diagnosis Related Group Payment Analysis, and various other reimbursement issues. Brent manages most of our larger hospitals cost reports, cost report strategies, major reopenings and appeals, as well as special reimbursement projects and projections. In addition to this, Brent is a member of several accounting and healthcare financial advocacy groups, including HFMA, TAHFA and TORCH, and has also participated in many speaking engagements.

Jaiden Nesbit

Job Titles:
  • Auditor

James Altendorf - CIO

Job Titles:
  • Chief Information Officer

Jared Stricklin


JJ Webb


Joan Copeland

Job Titles:
  • Principal, Organ Transplant Specialist

Joni Beaulieu


Jonni McKelvey

Job Titles:
  • Auditor

Judy Marrow


Kim Watts


Larry Jordan

Job Titles:
  • Principal

Lauren Dudley

Job Titles:
  • Consultant

Melissa Haigood

Job Titles:
  • Audit Manager

Mike Yost

Job Titles:
  • Consultant

Molly Donahoe

Job Titles:
  • Consultant

Natalie Patterson

Job Titles:
  • Audit Manager

Olivia Garza

Job Titles:
  • Auditor

Patty Stewart

Job Titles:
  • Consultant

Pete Garza

Job Titles:
  • Consultant

Priscilla Ribeiro

Job Titles:
  • Auditor

Sandra Castanon

Job Titles:
  • Auditor

Sherri Powell

Job Titles:
  • Consultant

Shonna Cannaday

Job Titles:
  • Partner

Somer Thetford

Job Titles:
  • Auditor

Steven Thummel

Job Titles:
  • Partner

Thomas Klement

Job Titles:
  • Senior Lead Auditor

Timothy LeJeune

Job Titles:
  • Consultant

Tom Johansen

Job Titles:
  • Principal, Organ Transplant Specialist

Tommy L. Davis

Job Titles:
  • Partner
Tommy has over 20 years of accounting and consulting experience, primarily in healthcare. Tommy has been involved in public accounting and has been involved with hundreds of financial statement audits for proprietary, not for profit and public hospitals. He was a shareholder and Audit Director for Parrish Moody & Fikes, PC, based in Waco, Texas. Tommy's experience allows him to provide various financial accounting and consulting services. Tommy is a member of HFMA. and a graduate of New Mexico State University with a BBA in Accounting.

Tracy Smith

Job Titles:
  • Consultant

Traudi Bandura

Job Titles:
  • Principal