Summary

Dr. Mark Johnston is an internal medicine physician who has dedicated over four decades to patient care. He earned his medical degree from the University of Texas Southwestern Medical School and completed his residency training at Good Samaritan Medical Center. With 42 years of medical experience, Dr. Johnston brings extensive knowledge to his practice. He is fluent in Vietnamese, Spanish, and English, allowing him to serve diverse patient communities.

Dr. Johnston practices at Texas Health Dallas and Texas Health Presbyterian Hospital Plano, providing care in Dallas and Plano, Texas. He specializes in treating common conditions such as toe deformities like hammer toe and claw toe, as well as allergic rhinitis and other forms of rhinitis. His practice includes physical therapy services and allergen immunotherapy for patients with allergies. Patients have given him an average rating of 3.9 on Vitals, reflecting their experiences with his care.

AI-generated from data on this provider profile.

Quick Facts

  • 3.9
  • 42 years of experience
  • 17 insurance plans accepted
  • speaks Vietnamese, Spanish, English
  • Good Samaritan Medical Center
  • 7 written reviews
  • 1 specialty
  • 9 areas of expertise
  • 1 board certification
  • 1 hospital affiliation
  • 2 office locations
  • Male

Office Locations

Dr. Mark Anthony Johnston has 2 locations

Texas Health Dallas

8200 Walnut Hill LnDallas, TX 75231

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Dr. Mark Anthony Johnston, MDDr. Arinola Odumusi, MDDr. Nabila Aslam, MDDr. Sarah Laibstain, MD
Internal MedicineInternal MedicineInternal MedicineInternal Medicine
Accepts New Patients Accepts New Patients Accepts New Patients
3.9 
3.8 
42 Years of Experience 21 Years of Experience 27 Years of Experience
No Virtual Visit Option No Virtual Visit Option Virtual Visit Available Virtual Visit Available
Speaks Vietnamese, Spanish, English Speaks English Speaks English Speaks English, Spanish
Dallas , TXPROSPER , TXIrving , TXDallas , TX
Med School: University Of Texas Southwestern Medical School Med School: Obafemi Awolowo College Of Health Sciences Olabisi Onabanjo University Med School: Ross University School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Mark Anthony Johnston

  • Aetna
  • Aetna - POS
  • Aetna - PPO
  • Baylor Scott & White Health Plan
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield - Medicare
  • Blue Cross Blue Shield - PPO
  • Blue Cross Blue Shield of Illinois
  • Blue Cross Blue Shield of Texas
  • Blue Cross Blue Shield of Texas - PPO
  • Cigna
  • FirstCare Health Plans
  • Humana
  • Medicare
  • Medicare - Medicaid (Managed)
  • Medicare - Medicare
  • UnitedHealthcare

Medical Specialties

Dr. Mark Anthony Johnston has the following specialty

Specialty Expertise

Dr. Mark Anthony Johnston has the following 9 areas of expertise

  • Check-up
  • Diabetes
  • Diabetes Complications
  • Heartburn
  • Immunization
  • Physical
  • Vaccination
  • Weight Loss
  • Weight Loss (non-surgical)

Certifications, License, & Education

42 Years Experience

MEDICAL LICENSE

Medical Doctor, Texas, 2026, Active

EDUCATION & TRAINING

Residency

Good Samaritan Medical Center

Medical School

University Of Texas Southwestern Medical SchoolGraduated in 1984

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Frequently Asked Questions

What languages does Dr. Mark Johnston speak?
Dr. Mark Johnston speaks Vietnamese, Spanish, and English.
Where is Dr. Mark Johnston's office located?
Dr. Mark Johnston's office is located at 8200 Walnut Hill Ln, Dallas, TX, 75231.
Which hospitals is Dr. Mark Johnston affiliated with?
Dr. Mark Johnston is affiliated with Texas Health Dallas.
How can I make an appointment with Dr. Mark Johnston?
You can find contact information for Dr. Mark Johnston here on Vitals.
Does Dr. Mark Johnston accept my insurance?
You can see the insurance plans that Dr. Mark Johnston accepts on their Vitals profile.

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