Cyber Leadership Index
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Cyber leadership profile

OU Health

OU Health is an academic health system integrated with the University of Oklahoma Health Sciences Center, serving as the state's flagship provider for specialized clinical care and research. The system includes Oklahoma Children's Hospital, the OU Health Stephenson Cancer Center, and multiple adult specialty hospitals. For a security leader, this environment involves managing complex clinical workflows, academic research data, and a large-scale regional patient network.

Industry
Healthcare
Headcount
10,000+ employees
Headquarters
Oklahoma City, Oklahoma
Ownership
Nonprofit
Revenue
$1B – $10B
Funding
Not applicable
Founded
1910
Company website

Cyber hiring activity

Open leadership roles

1

1 at Director level or above

Opened, last 12 months

1

1 Director+

Prior 12 months

0

Hiring velocity

Low

Median Opportunity Score 82

1 leadership role observed in the last 12 months. CLI has no coverage of the prior year for this employer. Counts reflect roles OU Health posted that CLI has observed and published; they are not a complete record of the employer's hiring.

Security leadership

Stewart Chaffee

Chief Information Security OfficerHiring influence: HighStated publiclyHigh confidence

As the Chief Information Security Officer, he holds primary authority over security strategy and hiring within the department.

Public profileSource

Darrell Messinger

Chief Information OfficerHiring influence: HighStated publiclyHigh confidence

Oversees the broader IT organization, including the CISO and cybersecurity budget.

Public profileSource

People are recorded only from public sources. Where a role in the hierarchy is inferred rather than stated, CLI labels it so you can weigh it yourself.

Approach

Open any live role below for its full approach path: the likely hiring owner, the decision circle around them, and the strongest route in.

Security organization

Estimated team size15–40 peopleModerate confidence

The CISO reports to the Chief Information Officer (CIO). The security team is segmented into operational security, compliance, and clinical risk management.

Major functions

Identity and Access Management (IAM)Clinical Security OperationsRegulatory Compliance (HIPAA/HITECH)Incident ResponseThird-party Risk Management

Maturity indicators

  • Dedicated CISO role established at the executive level
  • Publicly disclosed formal security incident response procedures
  • Healthcare-specific compliance alignment (HIPAA)

OU Health maintains a formalized security posture with dedicated leadership established following the organization's merger and restructuring into a unified health system.

Organization figures are CLI estimates, not disclosures. High confidence

Security events

  1. May 2024

    OU Health Data Breach Affecting Patients Reported

    Security incidentHigh confidence

    OU Health announced a data breach affecting approximately 3,000 patients due to unauthorized access to an employee's email account.

    Source

Technologies observed

AWSCloud1 posting

Extracted verbatim from this employer's security postings. Absence from this list does not mean the tool is not in use.

Open cyber leadership roles

Cyber Leadership Index compiles these dossiers from public sources and the employer's own postings. Inferred figures are labelled with a confidence level; anything CLI cannot establish is shown as unknown rather than estimated. Last refreshed September 3, 2026.