Summary

Dr. Barnett graduated from the University of Texas Medical Branch At Galveston in 1975. He works in Tyler, TX and 1 other location and specializes in Radiation Oncology and Emergency Medicine. Dr. Barnett is affiliated with Christus Mother Frances Hospital Tyler.

Quick Facts

  • accepting new patients
  • 4
  • 51 years of experience
  • 8 insurance plans accepted
  • speaks English, Spanish
  • University Of Alabama Hospital
  • 2 specialties
  • 4 areas of expertise
  • 2 board certifications
  • 1 hospital affiliation
  • 2 office locations
  • Male

Office Locations

Dr. John Mathis Barnett has 2 locations

Tyler Prostate Cancer Treatment Center

911 S Beckham AveTyler, TX 75701
Mon8:30 am - 5:00 pm
Tue8:30 am - 5:00 pm
Wed8:30 am - 5:00 pm
Thu8:30 am - 5:00 pm
Fri8:30 am - 12:00 pm
SatClosed
SunClosed

Peterson Regional Medical Center

551 Hill Country DrKerrville, TX 78028

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Dr. John Mathis Barnett, MDDr. Clinton Charles Smithson, MDDr. Sean Richard Nelson, MDDr. Shaun Michael York, MD
Radiation OncologyEmergency MedicineEmergency MedicineEmergency Medicine
Accepts New Patients Accepts New Patients
51 Years of Experience 12 Years of Experience 20 Years of Experience 17 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish
Tyler , TXTyler , TXTyler , TXTyler , TX
Med School: University Of Texas Medical Branch At Galveston Med School: University Of Texas Southwestern Medical School Med School: Tulane University School Of Medicine Med School: Texas Tech University Health Science Center School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. John Mathis Barnett

  • Accepts Medicare
  • Accepts Medicaid
  • Blue Cross Blue Shield of Texas
  • Cigna
  • Humana
  • Humana - HMO
  • Medicare
  • Medicare - Medicaid
  • Medicare - Medicare
  • UnitedHealthcare

Medical Specialties

Dr. John Mathis Barnett has the following 2 specialties

Specialty Expertise

Dr. John Mathis Barnett has the following 4 areas of expertise

  • Cancer
  • Emergency Medicine
  • Hodgkin's Lymphoma
  • Radiation Therapy

Certifications, License, & Education

51 Years Experience

MEDICAL LICENSE

Medical Doctor, Texas, 2026, Active

EDUCATION & TRAINING

Residency

University Of Alabama Hospital

Medical School

University Of Texas Medical Branch At GalvestonGraduated in 1975

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Frequently Asked Questions

Is Dr. John Barnett accepting new patients?
Dr. John Barnett is accepting new patients on Vitals. View Dr. John Barnett's profile on Vitals to make an appointment.
Which hospitals is Dr. John Barnett affiliated with?
Dr. John Barnett is affiliated with Christus Mother Frances Hospital Tyler.
How can I make an appointment with Dr. John Barnett?
You can find contact information for Dr. John Barnett here on Vitals.
Does Dr. John Barnett accept my insurance?
You can see the insurance plans that Dr. John Barnett accepts on their Vitals profile.
Does Dr. John Barnett accept virtual/telehealth appointments?
Dr. John Barnett has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.

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