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  • Internal Medicine
  • 50 years of experience
  • Usmd Las Colinas Clinic 6750 N MacArthur Blvd Ste 350, Irving, TX 75039
  • (972) 556-1616

Brief Intro

Dr. Johnston graduated from the Texas Tech University Health Science Center School of Medicine in 1975. He works in Irving, TX and 1 other location and specializes in Internal Medicine. Dr. Johnston is affiliated with Usmd Hospital At Arlington.

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Education Background

RESIDENCY

Austin Medical Education Program

MEDICAL SCHOOL

Texas Tech University Health Science Center School Of Medicine - 1975

Languages Spoken

  • English
  • Spanish

Location & Hours

  • Medical Clinic Of North Texas
  • 6750 N MacArthur Blvd Ste 350, Irving, TX 75039
  • Mon:8:00 am - 5:00 pm
    Tue:8:00 am - 5:00 pm
    Wed:8:00 am - 5:00 pm
    Thu:8:00 am - 5:00 pm
    Fri:8:00 am - 5:00 pm
    Sat:Closed
    Sun:Closed

Specialties Treated

  • Internal Medicine

Conditions Addressed

  • Obstructive Sleep Apnea
  • Fractures, Dislocations, Derangement, and Sprains
  • Ischemic Heart Disease
  • Atrial Fibrillation and Atrial Flutter
  • Attention Deficit Disorder (ADD)
  • Gastroesophageal Reflux Disease (GERD)
  • Disorders of Lipoid Metabolism
  • Venous Embolism and Thrombosis
  • Rheumatoid Arthritis
  • Benign Polyps of the Colon
  • Anxiety Phobic Disorders
  • Diabetes Mellitus (DM)
  • Contact Dermatitis
  • Hypertension (HTN)
  • Gout
  • Hypothyroidism
  • Acute Sinusitis
  • Herpes Zoster
  • Acute Upper Respiratory Tract Infections
  • Herpes Simplex
  • Osteoporosis
  • Depressive Disorders
  • Constipation
  • Insomnia
  • Anemia
  • Osteoarthritis
  • Bronchial Asthma
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Procedures Performed

  • Blood transfusion
  • Physical Therapy
  • Venipuncture
  • Blood transfusion
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Insurance Accepted

* Insurance information may change frequently. Please verify directly with the provider (doctor/clinic).

  • Medicaid
  • UnitedHealthcare
  • Cigna
  • Care N' Care
  • Tufts Health Plan
  • Blue Cross Blue Shield of Texas
  • Medicare
  • Blue Cross Blue Shield
  • Humana
  • Tricare
  • Aetna
  • Triwest Healthcare Alliance
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  • Cancer 66
  • Cardiology, Heart & Vascular Surgery 67
  • Orthopedics 124
  • Neurology & Neurosurgery 104
  • Gastroenterology & GI Surgery 119
  • Pulmonology & Lung Surgery 125
  • Diabetes & Endocrinology 53
  • Children's Hospital 23
  • Urology 117
  • Psychiatry 96
  • Geriatrics 115
  • Rehabilitation 139
  • Obsterics & Gynecology 13
  • Ophthalmology 2
  • Ear, Nose & Throat 10
  • Rheumatology 2
  • Long Term Care 50
  • Maternity Care (Uncomplicated Pregnancy) 60