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Dr. John McGreal, MD

Internal Medicine* Age 54
Dr. John McGreal, MD
5.0 (4 Ratings)
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Dr. John McGreal, MD is an Internal Medicine Specialist in Brooklyn, NY.
Dr. John McGreal, MD
5.0 (4 Ratings)
 Share
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Dr. John McGreal, MD

Internal Medicine* Age 54
Brooklyn, NY
Accepting new patients
29 years of experience
Dr. John McGreal, MD is an Internal Medicine Specialist in Brooklyn, NY.

About

Dr. John McGreal, MD is an Internal Medicine Specialist in Brooklyn, NY and has 29 years experience. They graduated from City University of New York School of Medicine. They currently practice at Practice and are affiliated with The Valley Hospital. At present, Dr. McGreal received an average rating of 5.0/5 from patients and has been reviewed 4 times. Their office accepts new patients. Dr. McGreal is board certified in Internal Medicine and Pediatrics.

Explains Conditions Well

Patients said this doctor explains conditions well.

Trustworthy

Patients said this doctor is trustworthy.

Friendly Staff

Patients said the staff was friendly.

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These providers are on the medical staff of Optum Medical Care New Jersey, P.C.
These providers are on the medical staff of Optum Medical Care New Jersey, P.C..
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Experience Check

Enter a condition or procedure
Arterial Blood Gas Test (ABG)
Electrocardiogram (EKG)
Fever
Arterial Blood Gas Test (ABG)
Electrocardiogram (EKG)
Fever
Arterial Blood Gas Test (ABG)
Electrocardiogram (EKG)
Fever
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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 Upper Respiratory Infection
Acute Venous Embolism Thrombosis
ADHD and-or ADD
Alkalosis
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
Asphyxia and Hypoxemia
Asthma
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Ataxia
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Atherosclerosis
Back Pain
Bacterial Sepsis
Bedsores
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Black Eye
Bladder Infection
Blood in Urine (Hematuria)
Bronchiolitis
Bronchitis
Bronchospasm
Bruise of Face, Scalp, or Neck
Burn Injuries
Bursitis
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Cachexia
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Calcium Metabolism Disorders
Carpal Tunnel Syndrome
Cellulitis
Chest Pain
Chronic Neck Pain
Chronic Pain
Chronic Sinusitis
Cold Sore
Conduct Disorder
Constipation
Contact Dermatitis
COPD (Chronic Obstructive Pulmonary Disease)
Cough
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Deep Vein Thrombosis (DVT)
Dehydration
Diabetes Type 1
Diabetes Type 2
Diabetes With Renal Manifestations
Diabetic Polyneuropathy
Diarrhea
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Difficulty With Walking
Dizziness
Dyshydrotic Eczema
Dyslipidemia
Dysphagia
Eczema and Contact Dermatitis
Emphysema
Enlarged Prostate (BPH)
Enteritis
Esophagitis
Fibromyalgia
Foot Sprain
Gait Abnormality
Gas-Bloat Syndrome
Gastritis
Gastroesophageal Reflux Disease (GERD)
Gastroparesis
Gout
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Headache
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Heart Disease
Heart Palpitations
Hemorrhoids
Hernia
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Herpes Simplex Infection
Herpes Zoster Without Complication
Hydrocele
Hyperkalemia
Hyperlipidemia
Hypertension
Hypogonadism
Hypokalemia
Hypotension
Hypotension (Excluding Maternal)
Hypothyroidism
Impetigo
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Influenza (Flu)
Insomnia
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Intestinal Diverticulitis
Intestinal Diverticulosis
Irritable Bowel Syndrome
Itchy Skin
Joint Pain
Knee Sprain
Laryngitis
Leg and Foot Ulcers
Limb Pain
Limb Swelling
Limb Swelling Caused by Fluid Overload
Lipid Disorders
Low Back Pain
Low Blood Oxygen Level
Magnesium Metabolism Disorders
Malaise and Fatigue
Malnutrition
Migraine
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Mineral Metabolism Disorders
Muscle Spasm
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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Orchitis
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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
Overweight
Patellofemoral Pain Syndrome (PFPS)
Pharyngitis
Phosphorus Metabolism Disorders
Pinkeye (Conjunctivitis)
Pneumonia
Poison Ivy, Poison Oak, or Poison Sumac Poisoning
Polymyalgia Rheumatica (PMR)
Polyneuropathy
Polyuria
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Prostatitis
Purpura
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Radiculopathy
Rash
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Reflux Esophagitis
Respiratory Syncytial Virus
Restless Leg Syndrome
Sciatica (Not Due to Disc Displacement)
Second-Degree Burns
Sexually Transmitted Diseases (STDs)
Shingles
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Shortness of Breath
Sinus Bradycardia
Sinus Tachycardia
Sinusitis
Sleep Apnea
Sprains and Strains (incl. Muscle Tear)
Strep Throat
Stye
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Swine Flu
Tension Headache
Testicular Dysfunction
Thrush
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Thyroid Goiter
Tobacco Use Disorder
Transient Ischemic Attack (TIA)
Urinary Incontinence
Urinary Stones
Urinary Tract Infection (UTI)
Venous Embolism and Thrombosis
Vertigo
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Viral Enteritis
Viral Infection
Wheezing
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Wrist Sprain or Strain
Abscess or Cyst Drainage or Aspiration
Abscess or Fluid Incision and Drainage
Cyst Incision and Drainage
Immunization Administration
Incision and Removal of Foreign Object
Pilonidal Cyst Removal

Locations

  1. 1 Citymd Urgent Care
    457 Atlantic Ave, Brooklyn, NY 11217
    Icon Directions Right Arrow Directions Phone Icon (718) 530-1144
  2. 2 Office
    228 Court St, Brooklyn, NY 11201
    Icon Directions Right Arrow Directions Phone Icon (718) 280-5362
  3. 3 Office
    420 5th Ave, Brooklyn, NY 11215
    Icon Directions Right Arrow Directions Phone Icon (718) 965-2273
  4. 4 Valley Hospital
    223 N Van Dien Ave, Ridgewood, NJ 07450
    Icon Directions Right Arrow Directions Phone Icon (201) 444-2019

Patient Satisfaction

Likelihood to recommend Dr. McGreal
5.0
Based on 4 Reviews
5 Stars (4)
4 Stars (0)
3 Stars (0)
2 Stars (0)
1 Star (0)

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Patient Reviews
Oct 15, 2023
Nice guy, very professional and helpful. Saw him at CityMD on Fifth Ave in Brooklyn New York
Matt Z — Oct 15, 2023
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Photo: Dr. John McGreal, MD
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Dr. McGreal's Office & Staff

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  • Staff friendliness and courteousness
  • Total wait time (waiting & exam rooms)

Experience with Dr. McGreal

  • Level of trust in provider's decisions
  • How well provider explains medical condition(s)
  • How well provider listens and answers questions
  • Hpends appropriate amount of time with patients

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About Me

Biography
  • Dr. John McGreal, MD is an internal medicine specialist in Brooklyn, NY and has over 28 years of experience in the medical field. He graduated from City University of New York School of Medicine in 1995. He specializes in Internal Medicine and Pediatrics.
Biography
Specialties*
Internal Medicine
Pediatrics
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
  • City University of New York School of Medicine
    1995
Medical Education

Board Certifications

Board Certifications
  • Internal Medicine and Pediatrics
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
Responses are sourced directly from patients.
Does Dr. McGreal communicate via email?
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Does Dr. McGreal specialize in working with children or adolescents?
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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. John McGreal, MD. To arrange an appointment, call the number on Dr. McGreal's profile.

Dr. John McGreal, MD is affiliated with The Valley Hospital.

Yes, Dr. John McGreal, MD holds board certification in Internal Medicine and Pediatrics.

Hospital Affiliations

  • The Valley Hospital

    4 Valley Health Plz, Paramus, NJ