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Dr. Keith Marcus, MD

Internal Medicine* Age 67
Dr. Keith Marcus, MD
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Dr. Keith Marcus, MD is an Internist in Ludington, MI.
Dr. Keith Marcus, MD
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Dr. Keith Marcus, MD

Internal Medicine* Age 67
Ludington, MI
Call for new patient details
39 years of experience
Dr. Keith Marcus, MD is an Internist in Ludington, MI.

About

Dr. Marcus graduated from University of Iowa. Dr. Keith Marcus, MD is an Internist in Ludington, MI and has 39 years experience. Dr. Marcus currently practices at Practice and are affiliated with Corewell Health Ludington Hospital. Dr. Marcus' office is not accepting new patients. Dr. Marcus is board certified in Internal Medicine and accepts multiple insurance plans.

Experience Check

Enter a condition or procedure
Dehydration
Arterial Blood Gas Test (ABG)
Electrocardiogram (EKG)
Dehydration
Arterial Blood Gas Test (ABG)
Electrocardiogram (EKG)
Dehydration
Arterial Blood Gas Test (ABG)
Electrocardiogram (EKG)
Acute Upper Respiratory Infection
Asphyxia and Hypoxemia
Constipation
Joint Pain
Nail Infection
Pharyngitis
Thrush
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Tobacco Use Disorder
Urinary Incontinence
Urinary Tract Infection (UTI)
Immunization Administration
Abdominal Pain
Abnormal Thyroid
Acidosis
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Actinic Keratosis
Acute Bronchitis
Acute Deep Vein Thrombosis (DVT)
Acute Kidney Infection
Acute Lower Respiratory Infection
Acute Pharyngitis
Acute Sinusitis
Acute Venous Embolism Thrombosis
ADHD and-or ADD
Adult Failure to Thrive
Alkalosis
All Headaches (incl. Migraine)
All Types of Food Poisoning
Allergic Conjunctivitis
Allergic Rhinitis
Anaphylaxis
Anemia
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Animal Allergies
Anxiety
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Arthritis
Arthritis of the Elbow
Asthma
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Asymptomatic Post-Menopausal Status
Ataxia
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Atherosclerosis
Back Pain
Balanoposthitis
Bedsores
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Benign Chronic Pain Syndrome
Bladder Atony
Bladder Infection
Blood in Urine (Hematuria)
Bronchiectasis
Bronchitis
Bronchospasm
Bruise of Face, Scalp, or Neck
Cachexia
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Calcium Metabolism Disorders
Candidiasis of Skin and Nails
Cellulitis
Chest Pain
Chronic Deep Vein Thrombosis (DVT)
Chronic Depression (Dysthymia)
Chronic Fatigue Syndrome
Chronic Interstitial Cystitis
Chronic Neck Pain
Chronic Pain
Chronic Sinusitis
Coccygeal Pain
Cold Sore
Confusion
Contact Dermatitis
COPD (Chronic Obstructive Pulmonary Disease)
Cough
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Deep Vein Thrombosis (DVT)
Dermatitis Due to Drugs
Dermatitis Due to Substances Taken Internally
Diabetes Type 1
Diabetes Type 2
Diabetes With Renal Manifestations
Diabetic Polyneuropathy
Diarrhea
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Difficulty With Walking
Dizziness
Down Syndrome
Dry Eyes
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Dyslipidemia
Dysphagia
Earwax Buildup
Eczema and Contact Dermatitis
Emphysema
Enlarged Prostate (BPH)
Enteritis
Esophagitis
Essential Tremor
Familial Hypercholesterolemia
Fever
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Fibromyalgia
Food Poisoning
Foot Infection
Gait Abnormality
Ganglion Cyst
Gastritis
Gastroesophageal Reflux Disease (GERD)
Gastroparesis
Genital Warts
Gout
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Hammer Toe
Headache
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Heart Disease
Heart Palpitations
Hemorrhoids
Hernia
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Herpes Simplex Infection
Herpes Zoster Without Complication
Hip Pointer
Hives
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Hypercalcemia
Hyperkalemia
Hyperlipidemia
Hypertension
Hypoglycemia
Hypogonadism
Hypokalemia
Hypotension
Hypotension (Excluding Maternal)
Hypothyroidism
Hypoxemia
Indigestion
Influenza (Flu)
Insomnia
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Intestinal Diverticulitis
Intestinal Diverticulosis
Irritable Bowel Syndrome
Itchy Skin
Kidney Infection
Lactose Intolerance
Leg and Foot Ulcers
Leukocytopenia
Lichen Simplex Chronicus
Limb Pain
Limb Swelling
Limb Swelling Caused by Fluid Overload
Lipid Disorders
Liver Damage from Alcohol
Low Back Pain
Lyme Disease
Magnesium Metabolism Disorders
Malaise and Fatigue
Malnutrition
Menstrual Disorders
Migraine
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Mineral Metabolism Disorders
Mood Disorders (Dysthymia and Cyclothymia)
Muscle Spasm
Muscle Weakness
Nail and Nail Bed Infection
Nausea
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Neurogenic Bladder
Nighttime Urination (Nocturia)
Noninfectious Gastroenteritis and Colitis
Nosebleed
Obesity
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Osteoarthritis
Osteoarthritis of Foot
Osteoarthritis of Hip
Osteoarthritis of Hip and Thigh
Osteoarthritis of Knee
Osteoarthritis of Shoulder
Osteoarthritis of Spine
Osteopenia
Osteoporosis
Otitis Media
Overactive Bladder
Overweight
Peptic Ulcer
Pericardial Disease
Peripheral Nerve Disorders
Phosphorus Metabolism Disorders
Pinkeye (Conjunctivitis)
Plantar Fasciitis
Pneumonia
Pollen Allergy
Polymyalgia Rheumatica (PMR)
Polyneuropathy
Polyuria
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Postherpetic Neuralgia
Postnasal Drip
Purpura
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Radiculopathy
Rash
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Raynaud's Disease
Reflux Esophagitis
Restless Leg Syndrome
Rhabdomyolysis
Ringworm
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Salivary Gland Stones and Inflammation
Sarcoidosis
Sciatica
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Secondary Diabetes Mellitus
Secondary Hypertension
Sexually Transmitted Diseases (STDs)
Shingles
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Shortness of Breath
Shoulder Tendinitis and Tenosynovitis
Sickle Cell Disease
Sinus Bradycardia
Sinus Tachycardia
Sinusitis
Skin Ulcer
Sleep Apnea
Sprains and Strains (incl. Muscle Tear)
Swine Flu
Testicular Dysfunction
Thyroid Goiter
Tobacco Withdrawal
Torticollis
Transient Ischemic Attack (TIA)
Tremor
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Urinary Stones
Venous Embolism and Thrombosis
Venous Insufficiency
Vertigo
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Viral Enteritis
Viral Hepatitis
Viral Infection
Vitamin B Deficiency
Vitamin B12 Deficiency
Vitamin D Deficiency
Warts
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Wheezing
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Yeast Infections
Abscess or Cyst Drainage or Aspiration
Abscess or Fluid Incision and Drainage
Advance Directive End of Life Planning
Fecal Occult Blood Test for Colorectal Cancer

Insurance Accepted

* Please verify this information when scheduling an appointment.
  • HAP Insurance PPO
  • Choice POS
    Choice Care PPO
    Choice Care Network PPO
    Preferred PPO
  • Curative EPO
    Curative PPO
    Curative PPO Plus
  • Open Access Plus
  • Medica Choice
  • First Health (Coventry Health Care) PPO

Locations

  1. 1 Corewell Health Ludington Hospital
    1 Atkinson Dr, Ludington, MI 49431
    Icon Directions Right Arrow Directions Phone Icon (231) 845-2324
  2. 2 Herbert M. Blair III MD PLC
    1560 E Sherman Blvd Ste 240, Muskegon, MI 49444
    Icon Directions Right Arrow Directions Phone Icon (231) 672-3883
  3. 3 Munson Healthcare Manistee Hospital
    1465 E Parkdale Ave, Manistee, MI 49660
    Icon Directions Right Arrow Directions Phone Icon (231) 398-1000
  4. 4 Munson Healthcare Cadillac Hospital
    400 Hobart St, Cadillac, MI 49601
    Icon Directions Right Arrow Directions Phone Icon (231) 876-7200
  5. 5 Corewell Health Butterworth Hospital
    100 Michigan St NE, Grand Rapids, MI 49503
    Icon Directions Right Arrow Directions Phone Icon (616) 391-3139

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About Me

Specialties*
Internal Medicine
Specialties*
  • *Sharecare does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Education

Education

Medical Education
  • University of Iowa
    1985
Medical Education

Board Certifications

Board Certifications
  • 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.
Common Questions and Answers
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Frequently Asked Questions

Find contact information here to make an appointment.

A list of accepted insurance providers is available on the Sharecare insurance check. It is always a good idea to verify your insurance when making an appointment.

New patients are generally accepted by Dr. Keith Marcus, MD. To arrange an appointment, call the number on Dr. Marcus' profile.

Dr. Keith Marcus, MD is affiliated with Corewell Health Ludington Hospital.

Yes, Dr. Keith Marcus, MD holds board certification in Internal Medicine.

Hospital Affiliations

  • Corewell Health Ludington Hospital

    1 Atkinson Dr, Ludington, MI