Search

 See All Internal Medicine Doctors in Bay Shore, NY

Dr. Karen Mrejen, MD

Internal Medicine* Age 56
Dr. Karen Mrejen, MD
3.7 (3 Ratings)
 Share
icon-circle-check
Link Copied!
Profile link copied to clipboard!
Map Pin Small Bay Shore, NY
Dr. Karen Mrejen, MD is an Internist in Bay Shore, NY.
Dr. Karen Mrejen, MD
3.7 (3 Ratings)
 Share
icon-circle-check
Link Copied!
Profile link copied to clipboard!

Dr. Karen Mrejen, MD

Internal Medicine* Age 56
Bay Shore, NY
Accepting new patients
29 years of experience
Dr. Karen Mrejen, MD is an Internist in Bay Shore, NY.

About

Dr. Karen Mrejen, MD is an Internist in Bay Shore, NY and has 29 years experience. They graduated from ALBANY MEDICAL COLLEGE. They currently practice at Northwell Health Physician Partners Pulmonary and Sleep Medicine at Bay Shore and are affiliated with Glen Cove Hospital, Long Island Jewish Medical Center, North Shore University Hospital and South Shore University Hospital. At present, Dr. Mrejen received an average rating of 3.7/5 from patients and has been reviewed 3 times. Their office accepts new patients. Dr. Mrejen also speaks French. Dr. Mrejen is board certified in Internal Medicine and accepts multiple insurance plans.

Friendly Staff

Patients said the staff was friendly.

Easy Scheduling

Patients said scheduling was easy.

Experience Check

Enter a condition or procedure
Shortness of Breath
Asthma
Electrocardiogram (EKG)
Shortness of Breath
Asthma
Electrocardiogram (EKG)
Shortness of Breath
Asthma
  • View other providers who treat Asthma
Electrocardiogram (EKG)
Acidosis
  • View other providers who treat Acidosis
Bronchiectasis
Bronchospasm
COPD (Chronic Obstructive Pulmonary Disease)
Emphysema
Lung Cancer
Pleural Effusion
Pneumonia
Pneumonitis
Respiratory Failure
Sleep Apnea
Tobacco Use Disorder
Arterial Blood Gas Test (ABG)
Immunization Administration
Sleep Study
Smoking Cessation Counseling
Abdominal Pain
Acute Bronchitis
Acute Lower Respiratory Infection
Acute Pharyngitis
Acute Respiratory Infection
Acute Upper Respiratory Infection
Alkalosis
All Headaches (incl. Migraine)
Aspergillosis
Asphyxia and Hypoxemia
Benign Lung Neoplasms
Bird Flu
  • View other providers who treat Bird Flu
Bone Cancer
Brain Injury
Breast Cancer
Breast Lump
Bronchiolitis
Bronchitis
Cachexia
  • View other providers who treat Cachexia
Cholangiocarcinoma
Cholecystitis and Gallstones
Chronic Bronchiolitis
Chronic Bronchitis
Chronic Pulmonary Heart Diseases (incl. Pulmonary Hypertension)
Cluster Headache
Collapsed Lung (Pneumothorax)
Colorectal Cancer
Constipation
Cough
  • View other providers who treat Cough
Dehydration
Diaphragmatic and Hiatal Hernia
Exercise Induced Asthma
Gallstones
Hiatal Hernia
Hypersensitivity Pneumonitis
Ileus
  • View other providers who treat Ileus
Influenza (Flu)
Interstitial Lung Disease
Intestinal Obstruction
Limb Pain
Liver Cancer
Low Blood Oxygen Level
Lung Nodule
Metastatic Respiratory System Cancer
Muscle Cramping
Muscle Spasm
Nausea
  • View other providers who treat Nausea
Osteosarcoma
Pancreatic Cancer
Partial Lung Collapse
Peptic Ulcer
Peripheral Vascular Disease (PAD, PVD)
Pharyngitis
Pleura Cancer
Pneumoconiosis and Pneumonopathy
Pneumonitis (Due to Solids or Liquids)
Primary Pulmonary Hypertension
Pulmonary Edema
Pulmonary Embolism
Pulmonary Eosinophilia
Pulmonary Hypertension
Pulmonary Insufficiency
Rhabdomyolysis
Rib Fracture
Sarcoidosis
Secondary Malignancies
Stomach and Small Intestine Cancer
Stomach Cancer
Swine Flu
Thrush
  • View other providers who treat Thrush
Thyroid Cancer
Tracheitis
Traumatic Brain Injury
Tuberculosis
Urinary Incontinence
Urinary Tract Infection (UTI)
Venous Embolism and Thrombosis
Ventral Hernia
Wheezing
  • View other providers who treat Wheezing
Advance Directive End of Life Planning
Bronchoscopy
Bronchoscopy with Robotic Assist
Continuous Positive Airway Pressure (CPAP)
Non-Invasive Mechanical Ventilation
Obesity Counseling
Pulmonary Rehabilitation Services
Respiratory Management
Thoracentesis

Insurance Accepted

* Please verify this information when scheduling an appointment.
  • HIP
  • Tricare
  • Medicaid
  • United Healthcare

Locations

  1. 1 Northwell Health Physician Partners Pulmonary and Sleep Medicine at Bay Shore
    39 Brentwood Rd Ste 102, Bay Shore, NY 11706
    Icon Directions Right Arrow Directions Phone Icon (631) 666-5864
  2. 2 Northwell Health
    258 W Main St, Babylon, NY 11702
    Icon Directions Right Arrow Directions Phone Icon (631) 666-5864
  3. 3 Northwell Health
    402 Potter Blvd, Brightwaters, NY 11718
    Icon Directions Right Arrow Directions Phone Icon (631) 894-5600

Patient Satisfaction

Likelihood to recommend Dr. Mrejen
3.7
Based on 3 Reviews
5 Stars (2)
4 Stars (0)
3 Stars (0)
2 Stars (0)
1 Star (1)

Leave a review

How likely are you to recommend Dr. Mrejen?

(Select your rating)
Patient Reviews
Jun 08, 2021
Takes a lot of time to learn your history and run tests before diagnosing. Very kind and understanding.
— Jun 08, 2021
See more reviews on Healthgrades
Photo: Dr. Karen Mrejen, MD
How would you rate your experience with Dr. Karen Mrejen, MD?
  • Likelihood of recommending Dr. Mrejen to family and friends

Dr. Mrejen's Office & Staff

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

Experience with Dr. Mrejen

  • 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

Tell Us About Yourself

  • Your gender:
  • Your age group:
  • Number of office visits you've had in the last 2 years:

Finish Here

  • How would you like to confirm your survey information?
    Standard text messaging and data rates may apply.
Thank you for sharing your feedback about Dr. Karen Mrejen, MD.
Claim Your Profile
Are you Dr. Karen Mrejen, MD?
Respond to reviews, add information, and reach more patients. Claiming is free and only takes a minute.

Claim my profile

About Me

Languages Spoken
French
Languages Spoken
Specialties*
Internal Medicine
Pulmonary Disease
Critical Care 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
  • ALBANY MEDICAL COLLEGE
    1995
Medical Education

Board Certifications

Board Certifications
  • Internal Medicine and Pulmonary Disease
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. Mrejen communicate via email?
No users said yes.
Yes
(0)
No
(1)
Does Dr. Mrejen offer telehealth services or virtual visits?
No users said yes.
Yes
(0)
No
(2)
Does Dr. Mrejen offer an online patient portal?
No users said yes.
Yes
(0)
No
(1)
Does Dr. Mrejen have free onsite parking?
1 user said yes.
Yes
(1)
No
(0)
Does Dr. Mrejen offer weekend visits?
No users said yes.
Yes
(0)
No
(2)
Does Dr. Mrejen offer evening visits?
No users said yes.
Yes
(0)
No
(1)
Does Dr. Mrejen specialize in working with children or adolescents?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Mrejen specialize in working with seniors?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Mrejen specialize in couples therapy?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Mrejen specialize in working with LGBTQ+ community?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Mrejen accept insurance?
No responses yet.
Yes
(0)
No
(0)

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. Karen Mrejen, MD. To arrange an appointment, call the number on Dr. Mrejen's profile.

Dr. Karen Mrejen, MD is affiliated with Glen Cove Hospital, Long Island Jewish Medical Center, North Shore University Hospital and South Shore University Hospital.

Yes, Dr. Karen Mrejen, MD holds board certification in Internal Medicine and Pulmonary Disease.

Hospital Affiliations

  • Glen Cove Hospital

    101 Saint Andrews Ln, Glen Cove, NY

  • Long Island Jewish Medical Center

    270 05 76 Ave, New Hyde Park, NY

  • North Shore University Hospital

    300 Community Dr, Manhasset, NY

  • South Shore University Hospital

    301 E Main St, Bay Shore, NY