


Dr. Oscar Chastain III, MD
Dr. Oscar Chastain III, MD is a cardiothoracic surgeon in Longview, TX and has over 40 years of experience in the medical field. He graduated from Baylor College of Medicine in 1980. He is affiliated with medical facilities CHRISTUS Good Shepherd Medical Center-Marshall and CHRISTUS Good Shepherd Medical Center-Longview. He is accepting new patients and telehealth appointments.
CHRISTUS Trinity Clinic
705 E Marshall Ave Ste 5001 Longview, TX 75601Make an Appointment
At a Glance
- Area of ExpertiseDr. Chastain III specializes in the area of Thoracic Cardiovascular Surgery. • See board certifications
- Explains Conditions Well
- Offers TelehealthThis doctor offers telehealth appointments. Call the office to schedule an appointment.
- Practices at Top Hospital

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Dr. Chastain III's Reviews
Likelihood to recommend Dr. Chastain III
4.7
5 Star | 67% | 67% |
4 Star | 33% | 33% |
3 Star | 0% | 0% |
2 Star | 0% | 0% |
1 Star | 0% | 0% |
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How was your experience with Dr. Chastain III?Overall Patient Satisfaction
Likelihood of recommending Dr. Chastain III to family and friends is 4.6666665 out of 5
About Me
biography
Oscar Chastain, MD is a cardiothoracic surgeon at CHRISTUS Trinity Clinic in Longview, TX.Cardiothoracic Surgery
*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Baylor Affil Hosps|st Lukes Episcopal Hospital
Residency Hospital, 1985Baylor College Of Medicine
Medical School, 1980
Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.
Learn more about medical license public record checkLocations
CHRISTUS Trinity Clinic
Affiliated Hospitals
- Recipient of 3
hospital awardsView all awardsPatient Safety Excellence Award™ (2025)
Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications
View all patient feedbackHow patients felt about the care they received at this hospital.
82%Patients said they were given information about recovering at home2% lower than the national average
78%Patients said that nurses always listened to them and explained things well3% higher than the national average
- Recipient of 5
hospital awardsView all awardsPatient Safety Excellence Award™ (2025)
Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications
Compare Providers
Providers shown based on Dr. Chastain III's location and specialty. Show more Cardiothoracic Surgery.
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