About
Catherine J. Graddy is an attorney at Joyce & Graddy, PLLC in Tulsa, Oklahoma. Her practice includes health care law, corporate and business law, contract drafting and disputes, real estate transactions and leasing, Indian and tribal law, civil litigation, cannabis law, and probate and estate matters. Graddy works within a firm that advises medical professionals and health care organizations on business and regulatory issues affecting their practices and operations.
Graddy earned her J.D. from the University of Tulsa College of Law in 2004. She received an M.A. in Clinical Psychology, with an emphasis in Marriage and Family Therapy, from Pepperdine University in 2000 and a B.A. in Psychology from the University of Colorado Boulder in 1998. Her multidisciplinary education provides a foundation for analyzing legal, business, and organizational issues involving health care providers, companies, and individual clients.
Her health care practice addresses matters connected to organizational structure, contracts, regulatory compliance, and the business requirements affecting medical providers. Joyce & Graddy represents doctors, hospitals, clinics, medical laboratories, medical device manufacturers, and other health care service providers on matters involving CMS regulations, the Anti-Kickback Statute, Stark Law, and communications or audits involving the U.S. Office of Inspector General. Graddy’s broader practice also allows her to address related corporate, real estate, litigation, and contractual issues.
Catherine J. Graddy is admitted to practice in Oklahoma and is a member of the Oklahoma Bar Association. Her professional and community involvement includes the American Indian Chamber of Commerce Oklahoma, where she serves as state vice president and a member of the state board of directors, as well as the Minority Business Council of Oklahoma. Her broad practice helps clients address regulatory, transactional, litigation, and organizational matters through practical legal guidance.
Law Office Affiliations
- Attorney, Joyce & Graddy, PLLC
- Member, Oklahoma Bar Association
Licensed State
- Oklahoma
Education
- University of Tulsa College of Law
Juris Doctor (JD) - Pepperdine University
MA in Clinical Psychology - University of Colorado
BA in Psychology
Awards & Badges

- Cannabis Law
- Contracts & Agreements
- Corporate & Incorporation
- Equipment Finance & Leasing
- Alternative Dispute Resolution
- Litigation
- Brain Injury
- Spinal Cord Injury
- Probate
- Trusts
- Wills & Living Wills




