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Dr. Mark Demus, MD

Emergency Medicine*
3.0 (4)
Map Pin Small Hoffman Estates, IL
Call for new patient details
43 years of experience

Overview of Dr. Mark Demus, MD

Dr. Mark Demus, MD is an Emergency Medicine Specialist in Hoffman Estates, IL. They specialize in Emergency Medicine, has 43 years of experience, and is board certified in Emergency Medicine. They graduated from Northwestern University and is affiliated with Ascension Saint Alexius and Northwest Community Hospital. Patients rated Dr. Demus an average 3.0 star rating.

Dr. Demus works at Practice in Hoffman Estates, IL with other offices in Schaumburg, IL, Mount Prospect, IL and Buffalo Grove, IL. Please call ahead to schedule an appointment and to confirm all accepted insurance plans.

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Dr. Demus' Office Locations

  1. 1
    Ascension St. Alexius
    1555 N Barrington Rd, Hoffman Estates, IL 60169 Icon Directions Right Arrow Directions Phone Icon (847) 490-6930
  2. 2
    NCH Schaumburg Outpatient Care Center
    519 S Roselle Rd, Schaumburg, IL 60193 Icon Directions Right Arrow Directions Phone Icon (847) 540-8088
  3. 3
    Northwest Community Health Services Inc
    199 W Rand Rd, Mount Prospect, IL 60056 Icon Directions Right Arrow Directions Phone Icon (847) 618-5401
  4. 4
    N S U H-Buffalo Grove
    15 S Mchenry Rd, Buffalo Grove, IL 60089 Icon Directions Right Arrow Directions Phone Icon (847) 459-6100

Hospital Affiliations
Admitting Hospitals

Admitting hospitals are where the provider is credentialed to see patients, perform procedures, and send patients for continuous care.

  • Ascension Saint Alexius
  • Northwest Community Hospital

Experience & Treatment Frequency

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May Perform

Specific procedures/conditions that don’t haveenough data are indicated with “May Perform”. We encourageyou to contact the provider with questions about theirexperience.

Search for conditions or procedures.
Chest Pain
Shortness of Breath
Dehydration
Chest Pain
Shortness of Breath
Dehydration

Treatment frequency



Many providers have expertise treating multiple conditions or procedures. FindCare uses a variety of data sources to determine which conditions or procedures a provider treats and their level of experience.
Chest Pain
Shortness of Breath
Dehydration
Burn Injuries
Facial Fracture
Abdominal Pain
Acidosis
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Acute Bronchitis
Acute Deep Vein Thrombosis (DVT)
Acute Laryngitis
Acute Lower Respiratory Infection
Acute Pharyngitis
Acute Sinusitis
Acute Tonsillitis
Acute Upper Respiratory Infection
Acute Venous Embolism Thrombosis
ADHD and-or ADD
Adhesive Capsulitis Shoulder
All Headaches (incl. Migraine)
Allergic Conjunctivitis
Allergic Rhinitis
Anal or Rectal Pain
Anemia
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Animal Allergies
Ankle Sprains and Strains
Anxiety
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Arthritis
Arthritis of the Elbow
Asthma
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Ataxia
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Atherosclerosis
Back Pain
Bedsores
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Bladder Infection
Blood in Urine (Hematuria)
Broken Nose
Bronchitis
Bronchospasm
Bursitis
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Calcium Metabolism Disorders
Carpal Tunnel Syndrome
Cellulitis
Cerebral Embolism
Chest Wall Pain Syndrome
Chronic Deep Vein Thrombosis (DVT)
Chronic Fatigue Syndrome
Chronic Neck Pain
Chronic Pain
Chronic Sinusitis
Coccygeal Pain
Collapsed Lung (Pneumothorax)
Constipation
Contact Dermatitis
COPD (Chronic Obstructive Pulmonary Disease)
Cough
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Deep Vein Thrombosis (DVT)
Diabetes Type 1
Diabetes Type 2
Diabetes With Renal Manifestations
Diabetic Polyneuropathy
Diarrhea
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Difficulty With Walking
Diverticulitis
Diverticulosis
Dizziness
Down Syndrome
Drug Withdrawal
Dyslipidemia
Dysphagia
Ear Ache
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Earwax Buildup
Eczema and Contact Dermatitis
Embolism
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Emphysema
Enlarged Prostate (BPH)
Enteritis
Esophagitis
Essential Tremor
Fever
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Fibromyalgia
Foot Sprain
Gait Abnormality
Ganglion Cyst
Gas-Bloat Syndrome
Gastritis
Gastroesophageal Reflux Disease (GERD)
Gastroparesis
Gout
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Headache
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Heart Attack (Acute Myocardial Infarction)
Heart Disease
Heart Palpitations
Heartburn
Hemorrhoids
Hernia
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Herpes Zoster Without Complication
Hip Pointer
Hip Sprain
Hives
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Human Immunodeficiency Virus (HIV)
Humerus Fracture
Hypercalcemia
Hyperkalemia
Hyperlipidemia
Hypertension
Hypoglycemia
Hypotension
Hypotension (Excluding Maternal)
Hypothyroidism
Indigestion
Influenza (Flu)
Insomnia
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Irritable Bowel Syndrome
Itchy Skin
Joint Pain
Kidney Infection
Kidney Stone Pain (Renal Colic)
Knee Sprain
Laryngitis
Leg and Foot Ulcers
Limb Pain
Limb Swelling
Limb Swelling Caused by Fluid Overload
Lipid Disorders
Liver Damage from Alcohol
Low Back Pain
Low Blood Oxygen Level
Magnesium Metabolism Disorders
Malaise and Fatigue
Malnutrition
Maxillary and Malar Fractures
Menstrual Disorders
Migraine
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Mineral Metabolism Disorders
Muscle Cramping
Muscle Spasm
Muscle Weakness
Nail and Nail Bed Infection
Nausea
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Neck Muscle Strain
Neurogenic Bladder
Noninfectious Gastroenteritis and Colitis
Nosebleed
Obesity
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Opioid Withdrawal
Osteoarthritis
Osteoarthritis of Foot
Osteoarthritis of Hand or Wrist
Osteoarthritis of Hip
Osteoarthritis of Hip and Thigh
Osteoarthritis of Knee
Osteoarthritis of Shoulder
Osteoarthritis of Spine
Osteopenia
Osteoporosis
Otitis Media
Outer Ear Infection
Overweight
Painful Urination (Dysuria)
Partial Lung Collapse
Patellofemoral Pain Syndrome (PFPS)
Pericardial Disease
Peripheral Nerve Disorders
Pharyngitis
Pinkeye (Conjunctivitis)
Pneumonia
Polyneuropathy
Polyuria
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Potassium Deficiency
Proteinuria
Radiculopathy
Rash
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Reflux Esophagitis
Respiratory Failure
Ringworm
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Sarcoidosis
Sciatica (Not Due to Disc Displacement)
Second-Degree Burns
Sexually Transmitted Diseases (STDs)
Shingles
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Shoulder Tendinitis and Tenosynovitis
Sickle Cell Disease
Sinus Bradycardia
Sinus Tachycardia
Sinusitis
Skin Ulcer
Sleep Apnea
Sprains and Strains (incl. Muscle Tear)
Strep Throat
Stroke
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Swine Flu
Thyroid Goiter
Tinnitus
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Tobacco Use Disorder
Tonsillitis
Torticollis
Toxic Effect of Venom
Tremor
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Trigeminal Neuralgia
Urinary Incontinence
Urinary Stones
Urinary Tract Infection (UTI)
Vaginitis or Vaginosis
Venous Insufficiency
Vertigo
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Viral Enteritis
Viral Hepatitis
Viral Infection
Vitamin B Deficiency
Vitamin D Deficiency
Wheezing
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Wrist Sprain or Strain
Yeast Infections
Abscess or Cyst Drainage or Aspiration
Abscess or Fluid Incision and Drainage
Arterial Blood Gas Test (ABG)
Detoxification Evaluation
Electrocardiogram (EKG)
Fecal Occult Blood Test for Colorectal Cancer
Immunization Administration
Incision and Removal of Foreign Object
Thrombolysis
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    Ratings & Reviews
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    3.0
    Average provider rating
    Based on 4 ratings
    Patient Ratings (4)
    5 Star
    (2)
    4 Star
    (0)
    3 Star
    (0)
    2 Star
    (0)
    1 Star
    (2)
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    Dr. Demus' Office & Staff

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    About Dr. Mark Demus, MD

    Specialties*
    • Emergency Medicine

    • *Healthline does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
    Specialties*
    Years of Experience
    • 43 years of experience
    Years of Experience
    Years of experience represents how long a provider has been practicing in their field since graduating from medical school. Not all providers will have this information available.
    Languages Spoken
    • English
    Languages Spoken
    NPI Number
    • 1477571479
    NPI Number
    A National Provider Identifier (NPI) is a unique 10-digit identifier issued by the government to healthcare providers.

    Education & Certifications

    Medical Education
    • Northwestern University
    Medical Education
    Board Certifications
    • Emergency Medicine and Internal Medicine
    Board Certifications
    What’s a board certification and why is it important that my provider has one?

    A board certification represents a provider’s dedication to ongoing training in one or more specialties, including the completion of intensive exams. While not all specialties have board certifications, if your provider does have one they’ve taken the extra step to master their specialty and to keep up with the latest advancements in their field.

    Frequently Asked Questions

    Dr. Demus has indicated that they do offer telehealth services. Please call the provider’s office at for more information.

    4 patients have reviewed Dr. Demus. The overall rating for this provider is 3.0. You can read verified reviews and ratings and leave your own review based on your experience with Dr. Demus.

    Whether a person prefers to schedule an appointment online or over the phone with Dr. Demus, there are benefits to both methods. A person calling to schedule an with Dr. Demus appointment can ask questions about the practice, provider availability, conditions treated, procedures performed, and if their insurance carrier is accepted. While online scheduling is quicker, easier, allows one to view a wide range of appointment times, and may provide the ability to sync with a personal calendar.

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