| Topic | Program | Contact | Phone |
|---|
| Obesity | Obesity Prevention Program | Brett Spencer
| 512-776-6161 |
| Occupational Diseases: Asbestos, Silicosis, Pesticide, Occupational Lead Poisoning | Environmental and Injury Epidemiology and Toxicology Unit | Emily Hall Jose Velez Ketki Patel | 512-776-7269 512-776-7269 |
| Occupational Health | Environmental and Injury Epidemiology and Toxicology Unit | Jose Velez Ketki Patel
| 512-776-6216 |
| Offender Education | Professional Licensing and Certification Unit - Offender Education Group | Offender Education Group-Course Referrals Offender Education Group-Certification
| 1-800-832-9623 ext 2910 512-834-6628 ext 2129 |
| Office of General Counsel | Office of General Counsel | Lisa Hernandez
| 512-776-7236 |
| Open Records - Public Information Requests | Office of General Counsel | Open Records
| 512-776-6966 |
| Optician Registration | Opticians' Registry Program Professional Licensing and Certification Unit | Opticians’ Registry Program | 512-834-6661 |
| Oral/Dental Health/Texas Health Steps Dental | Oral Health Branch | Oral Health Program
| 512-776-3001 |
| Orthotist/Prosthetist Licensing | Texas Board of Orthotics and Prosthetics Professional Licensing and Certification Unit | Yvonne Feinleib
| 512-834-6628, ext. 4521 |
| Out of Hospital - Do Not Resuscitate | Office of EMS/Trauma Systems Coordination – Stakeholder Info Group | Adrienne Kitchen Chelsea Jones
| 512-834-6700, ext. 2380 512-834-6700, ext. 2363 |
| Outpatient Physical Therapy or Speech Pathology Services – Medicare Certification | Patient Quality Care Unit - Health Facility Compliance | Patrick Waldron
| 512-834-6650, ext. 2625 |
| Oxygen | Drug Manufacturers and Distributors | Drugs and Medical Devices Group
| 512-834-6755 |
| Oysters | PSQA Unit – Seafood and Aquatic Life Group | Kirk Wiles
| 512-834-6757, ext. 2500 |