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Dr. Marc Demyun, MD

Dr. Marc Demyun, MD

Age 51 Internal Medicine M
(2) 2 reviews

Telehealth available


Dr. Marc Demyun, MD is a internal medicine specialist in Denison, TX. Dr. Demyun completed a residency at Mt Sinai School Of Med. He currently practices at Texoma Medical Center Hsptlsts and is affiliated with Forrest General Hospital. He accepts multiple insurance plans. Dr. Demyun is board certified in Internal Medicine.


  • Mt Sinai School Of Med, Residency Hospital
  • St Vincent Hospital Hlthcare Center, Residency Hospital
  • Ross University, Medical School — 1997

Insurance Accepted

  • Aetna
  • Blue Cross Blue Shield
  • Centene
  • Cigna
  • Coventry Health Care
  • First Health (Coventry Health Care)
  • Humana
  • Medicaid
  • MultiPlan
  • UnitedHealthCare
  • Worker's Compensation

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  1. Texoma Medical Center Hsptlsts

    1. 1
      Texoma Medical Center
      5016 S US Highway 75, Denison, TX 75020 Existing Patients: (903) 416-4378
  1. Practice

    1. 2
      Queens Medical Center
      1301 Punchbowl St, Honolulu, HI 96813 Existing Patients: (808) 691-4466

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Dr. Marc Demyun, MD
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Frequently Asked Questions

Dr. Demyun frequently treats Chest Pain, Tobacco Use Disorder, and Hypokalemia .  

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Hospital Affiliations

  • Forrest General Hospital
  • Merit Health Wesley
  • Texoma Medical Center