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Dr. Christopher Brennan, MD

Internal Medicine*
5.0 (13)
Map Pin Small West Islip, NY
Call for new patient details
17 years of experience

Overview of Dr. Christopher Brennan, MD

Dr. Christopher Brennan, MD is an Internal Medicine Specialist in West Islip, NY. They specialize in Internal Medicine, has 17 years of experience. They graduated from Ross University School of Medicine and is affiliated with Good Samaritan Hospital Medical Center. Patients rated Dr. Brennan an average 5.0 star rating.

Dr. Brennan works at Practice in West Islip, NY with other offices in Providence, RI. Please call ahead to schedule an appointment and to confirm all accepted insurance plans.

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User Ratings (of at least 4.0)
Insurance Accepted
Headshot Available
Accepting New Patients
Conditions Treated and Procedures Performed

Dr. Brennan's Office Locations

  1. 1
    Good Samaritan Hospital Laboratory
    1000 Montauk Hwy, West Islip, NY 11795 Icon Directions Right Arrow Directions Phone Icon (631) 376-3903
  2. 2
    Roger Williams Medical Center
    825 Chalkstone Ave, Providence, RI 02908 Icon Directions Right Arrow Directions Phone Icon (401) 456-2000

Hospital Affiliations
Admitting Hospitals

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

  • Good Samaritan Hospital Medical Center

Experience & Treatment Frequency

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What is treatment frequency?

Our treatment frequency feature helps you understand howoften a provider performs or treats a specificprocedure/condition compared to other doctors. Providersrank in one of four frequency categories:

Very HighFrequency
HighFrequency
NormalFrequency
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.
Asphyxia and Hypoxemia
Arterial Blood Gas Test (ABG)
Electrocardiogram (EKG)

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.
Asphyxia and Hypoxemia
Arterial Blood Gas Test (ABG)
Electrocardiogram (EKG)
Constipation
Joint Pain
Tobacco Use Disorder
Urinary Tract Infection (UTI)
Abdominal Pain
Abnormal Thyroid
Acidosis
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Acute Bronchitis
Acute Kidney Infection
Acute Lower Respiratory Infection
Adult Failure to Thrive
Alkalosis
All Headaches (incl. Migraine)
Anemia
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Anxiety
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Arthritis
Arthritis of the Elbow
Asthma
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Atherosclerosis
Back Pain
Benign Chronic Pain Syndrome
Bladder Infection
Blood in Urine (Hematuria)
Bronchiectasis
Bronchitis
Bruise of Face, Scalp, or Neck
Bursitis
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Cachexia
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Calcium Metabolism Disorders
Cellulitis
Chest Pain
Chronic Deep Vein Thrombosis (DVT)
Chronic Pain
Chronic Sinusitis
Congestive Heart Failure
COPD (Chronic Obstructive Pulmonary Disease)
Cough
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Deep Vein Thrombosis (DVT)
Dehydration
Diabetes
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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
Emphysema
Enlarged Prostate (BPH)
Fever
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Fibromyalgia
Gait Abnormality
Gastritis
Gastroesophageal Reflux Disease (GERD)
Gastroptosis
Gout
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Heart Disease
Heart Palpitations
Hemorrhoids
Hernia
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Hidradenitis
High Cholesterol
Hip Pointer
Hip Sprain
Human Immunodeficiency Virus (HIV)
Hypercalcemia
Hyperkalemia
Hyperlipidemia
Hypertension
Hypokalemia
Hypotension
Hypotension (Excluding Maternal)
Hypothyroidism
Influenza (Flu)
Insomnia
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Intestinal Diverticulitis
Intestinal Diverticulosis
Irritable Bowel Syndrome
Kidney Infection
Kidney Stone Pain (Renal Colic)
Leg and Foot Ulcers
Leukocytopenia
Limb Pain
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
Migraine
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Mineral Metabolism Disorders
Muscle Weakness
Nausea
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Neurogenic Bladder
Nighttime Urination (Nocturia)
Noninfectious Gastroenteritis and Colitis
Obesity
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Onychogryphosis
Opiate Dependence
Opioid Dependence
Osteoarthritis
Osteoarthritis of Foot
Osteoarthritis of Knee
Osteoarthritis of Shoulder
Osteopenia
Osteoporosis
Overweight
Painful Urination (Dysuria)
Phosphorus Metabolism Disorders
Pneumonia
Polyneuropathy
Polyuria
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Purpura
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Rhabdomyolysis
Secondary Hypertension
Sexually Transmitted Diseases (STDs)
Shortness of Breath
Shoulder Tendinitis and Tenosynovitis
Sinus Bradycardia
Sinus Tachycardia
Sinusitis
Sleep Apnea
Swine Flu
Syncope
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Thrush
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Tremor
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Urinary Incontinence
Urinary Stones
Venous Embolism and Thrombosis
Venous Insufficiency
Vertigo
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Viral Hepatitis
Wheezing
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Yeast Infections
Immunization Administration
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    Ratings & Reviews
    Reviews are displayed in date order and collected from patients who have agreed to reporting accurate and fair reviews. Providers with no reviews may have a new FindCare profile, or no submitted reviews on FindCare yet.

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    5.0
    Average provider rating
    Based on 13 ratings
    Patient Ratings (13)
    5 Star
    (13)
    4 Star
    (0)
    3 Star
    (0)
    2 Star
    (0)
    1 Star
    (0)
    Leave a review

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    Dr. Brennan's Office & Staff

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    • Office environment, cleanliness, comfort, etc.
    • Staff friendliness and courteousness
    • Total wait time (waiting & exam rooms)

    Experience with Dr. Brennan

    • 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 Dr. Christopher Brennan, MD

    Specialties*
    • Internal 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
    • 17 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, Spanish
    Languages Spoken
    NPI Number
    • 1174771323
    NPI Number
    A National Provider Identifier (NPI) is a unique 10-digit identifier issued by the government to healthcare providers.

    Education & Certifications

    Internship
    • Roger Williams Medical Center/Boston University School Of Medicine
    Internship
    Medical Education
    • Ross University School of Medicine
    Medical Education
    Undergraduate School
    • Rensselaer Polytechnic Institute
    Undergraduate School

    Frequently Asked Questions

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

    13 patients have reviewed Dr. Brennan. The overall rating for this provider is 5.0. You can read verified reviews and ratings and leave your own review based on your experience with Dr. Brennan.

    Whether a person prefers to schedule an appointment online or over the phone with Dr. Brennan, there are benefits to both methods. A person calling to schedule an with Dr. Brennan 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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