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Dr. Marc Demyun, MD

Greenville, TX

23 Years of Experience

Accepting patients
Online booking

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Demyun, Internist in Greenville, TX?

    Dr. Marc Demyun, MD is an Internist, who primarily practices in Greenville, TX with 2 additional practice locations. He has been practicing for over 23 years and is board certified. Dr. Demyun graduated from Ross University School Of Medicine and completed his residency at Mt Sinai Sch Of Med, Internal Medicine; St Vincent Hosp Hlthcare Ctr, Internal Medicine. Dr. Demyun is fluent in English, and is currently seeing new patients. Dr. Demyun’s practice accepts Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Demyun’s office at (903) 453-2850.

    Where did Dr. Demyun go to medical school and complete their residency?

    • Residency: Mt Sinai Sch Of Med, Internal Medicine; St Vincent Hosp Hlthcare Ctr, Internal Medicine | Icahn School of Medicine at Mount Sinai Program A

    • Medical School: Ross Univ- Sch Of Med & Vet Med- Roseau- Dominica | Ross University School Of Medicine

    Is Dr. Demyun board certified as an Internist?

    Yes, Dr. Marc Demyun, MD is board certified by the American Board of Internal Medicine

    What languages does Dr. Demyun speak?

    Dr. Demyun and their clinical team can communicate with patients in the following languages:

    • English

    What conditions does Dr. Demyun treat?

    As an Internist, Dr. Demyun diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Demyun. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.

    Also known as:

    • Fatigue
    • Chronic Fatigue Syndrome (CFS)
    • Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
    • Tiredness
    • Lack of energy
    • Exhaustion
    • Myalgic encephalomyelitis (ME)
    • Long-term tiredness
    • Persistent fatigue

    ICD-10 Codes:

    • R5383: Other fatigue
    • R5382: Chronic fatigue, unspecified

    Also known as:

    • Pinched Nerve in Lower Back
    • Pinched Nerve in Neck
    • Back Pain
    • Peripheral Nerve Disorder
    • Neck Injuries and Disorder
    • Lumbar Radiculopathy
    • Lower Back Nerve Compression
    • Compressed Nerve in Lower Back
    • Cervical Radiculopathy
    • Neck Nerve Compression
    • Compressed Nerve in Neck

    ICD-10 Codes:

    • M5416: Radiculopathy, lumbar region
    • M5412: Radiculopathy, cervical region

    Also known as:

    • High Blood Pressure
    • Hypertension
    • Primary Hypertension
    • Essential Hypertension

    ICD-10 Codes:

    • I10: Essential (primary) hypertension

    Also known as:

    • Back Muscle Spasm
    • Neuromuscular Disorder
    • Back Muscle Cramp
    • Spasms in Back
    • Lower Back Spasm

    ICD-10 Codes:

    • M62830: Muscle spasm of back

    Also known as:

    • Upper Back Pain
    • Low Back Pain
    • Back Pain
    • Thoracic Spine Pain
    • Mid-Back Pain
    • Thoracic Back Ache
    • Lumbago
    • Lower Back Ache
    • Backache

    ICD-10 Codes:

    • M546: Pain in thoracic spine
    • M5450: Low back pain, unspecified

    Also known as:

    • Allergic Rhinitis
    • Allergy
    • Nasal allergy
    • Chronic allergy symptoms
    • Allergic reactions

    ICD-10 Codes:

    • J3089: Other allergic rhinitis

    Also known as:

    • Muscle Cramps
    • Muscle Spasms
    • Charley Horse
    • Leg Cramps

    ICD-10 Codes:

    • R252: Cramp and spasm

    Also known as:

    • Type 2 Diabetes with Diabetic Foot Ulcer
    • Diabetes Type 2
    • Diabetic Foot
    • Type 2 diabetes
    • Diabetic Foot Wound
    • Foot Sore from Diabetes
    • Diabetic Ulcer

    ICD-10 Codes:

    • E11621: Type 2 diabetes mellitus with foot ulcer

    Also known as:

    • Neck Pain
    • Neck Injuries and Disorder
    • Cervical Pain
    • Sore Neck
    • Neck Ache

    ICD-10 Codes:

    • M542: Cervicalgia

    Also known as:

    • Other Heart and Lung Symptoms
    • Heart Disease
    • Lung Disease
    • Cardiopulmonary symptoms
    • Unusual heart and breathing signs
    • Circulatory-respiratory issues

    ICD-10 Codes:

    • R0989: Other specified symptoms and signs involving the circulatory and respiratory systems

    Also known as:

    • Progressive Nerve Damage of Unknown Cause
    • Peripheral Nerve Disorder
    • Idiopathic Neuropathy
    • Progressive Peripheral Neuropathy
    • Nerve Damage without Known Cause

    ICD-10 Codes:

    • G603: Idiopathic progressive neuropathy

    Also known as:

    • High Cholesterol
    • Cholesterol
    • Triglycerides
    • Hyperlipidemia
    • High lipids
    • Dyslipidemia

    ICD-10 Codes:

    • E785: Hyperlipidemia, unspecified

    Also known as:

    • Age-Related Brain Degeneration
    • Dementia
    • Senile Dementia
    • Brain Degeneration in Elderly

    ICD-10 Codes:

    • G311: Senile degeneration of brain, not elsewhere classified

    Also known as:

    • Wound Dressing Change or Removal
    • Wounds and Injuries
    • Non-surgical dressing care
    • Wound care visit
    • Dressing replacement

    ICD-10 Codes:

    • Z4800: Encounter for change or removal of nonsurgical wound dressing

    Also known as:

    • Pressure Sore
    • Pressure Sores
    • Bed Sore
    • Decubitus Ulcer
    • Pressure Ulcer

    ICD-10 Codes:

    • L89154: Pressure ulcer of sacral region, stage 4

    Also known as:

    • Cerebral Atherosclerosis
    • Brain Disease
    • Hardening of Brain Arteries
    • Brain Artery Plaque
    • Cerebral Artery Disease
    • Brain Blood Vessel Hardening

    ICD-10 Codes:

    • I672: Cerebral atherosclerosis

    Also known as:

    • Nutritional Deficiency
    • Malnutrition
    • Nutrient Shortage
    • Lack of Essential Nutrients

    ICD-10 Codes:

    • E639: Nutritional deficiency, unspecified

    What procedures does Dr. Demyun perform?

    As an Internist, Dr. Demyun performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Demyun. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.

    Also known as:

    • Wound Debridement
    • Skin and Tissue Debridement
    • Surgical Wound Cleaning
    • Tissue Removal from Wound
    • Dead Tissue Removal
    • Wound Cleaning
    • Surgical Debridement
    • Subcutaneous Tissue Debridement

    CPT Codes:

    • 11042: Debridement, subcutaneous tissue (includes epidermis and dermis, if performed); first 20 sq cm or less
    • 11045: Debridement, subcutaneous tissue (includes epidermis and dermis, if performed); each additional 20 sq cm, or part thereof (List separately in addition to code for primary procedure)

    Does Dr. Demyun accept my insurance?

    Dr. Demyun accepts most major insurance plans. Important: Please call our office at (903) 453-2850 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Demyun accept in Greenville, TX?

    Dr. Demyun in Greenville, TX accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • Centene

    • CVS Health (formerly Aetna)

    • Department of Defense / Tricare

    • Health Care Service Corporation (HCSC)

    • Humana

    • Medicaid

    • Medicare

    • MedImpact

    • Other Health Care Provider

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Demyun's office located?

    Dr. Marc Demyun's Primary Practice

    4001 Ridgecrest Rd Ste A

    Greenville, TX 75402

    (903) 453-2850

    Get Directions

    Dr. Marc Demyun's Practice 2

    9901 Valley Ranch Pkwy E Ste 1015

    Irving, TX 75063

    Get Directions

    Dr. Marc Demyun's Practice 3

    2810 E Trinity Mills Rd Ste 130

    Carrollton, TX 75006

    (972) 417-1936

    Get Directions

    Would you like to schedule an appointment with Dr. Marc Demyun?

    Dr. Demyun has appointments available at his Greenville, TX office, as well as 2 other locations. Please select a location, date, and time below.

    What is Dr. Demyun's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.

    Dr. Demyun's National Provider Identifier (NPI) number is 1952366684.

    What common questions do patients ask about Dr. Demyun?

    Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Demyun

    What is Dr. Marc Demyun's specialty?

    Dr. Demyun is a Internist near Greenville, TX.

    A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

    Contact Dr. Demyun to book an appointment today.

    Is this Dr. Marc Demyun affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Demyun is affiliated with Hunt Regional Medical Center at Greenville, Texas Health Presbyterian Hospital Dallas, Baylor Scott & White Surgical Hospital at Sherman, Baylor Scott & White Medical Center - McKinney which are a Castle Connolly Top Hospitals. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals

    Where can I learn more about Internist?

    Explore Internist with insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.

    Is Marc Demyun accepting new patients in Greenville, TX?

    Yes, Dr. Marc Demyun is accepting new patients at this time.

    Does Dr. Marc Demyun offer online booking?

    Yes, you can use online booking to schedule an appointment with Dr. Demyun, or call (903) 453-2850 for more information.

    How can I make an appointment with Marc Demyun?

    Please contact Dr. Demyun's office at (903) 453-2850 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Marc Demyun have?

    Dr. Marc Demyun is certified by the American Board of Internal Medicine.

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