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Dr. Karen Mrejen, MD

Internal Medicine* Age 57
Dr. Karen Mrejen, MD
3.7 (3 Ratings)
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Dr. Karen Mrejen, MD is an Internist in Bay Shore, NY.
Dr. Karen Mrejen, MD
3.7 (3 Ratings)
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Dr. Karen Mrejen, MD

Internal Medicine* Age 57
Bay Shore, NY
Accepting new patients
30 years of experience
Dr. Karen Mrejen, MD is an Internist in Bay Shore, NY.

About

Dr. Mrejen graduated from ALBANY MEDICAL COLLEGE. Dr. Karen Mrejen, MD is an Internist in Bay Shore, NY and has 30 years experience. Dr. Mrejen currently practices 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. Dr. Mrejen's office accepts new patients. Dr. Mrejen also speaks French. Dr. Mrejen is board certified in Critical Care Medicine and accepts multiple insurance plans.

Friendly Staff

Patients said the staff was friendly.

Easy Scheduling

Patients said scheduling was easy.

Experience Check

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Asthma
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Electrocardiogram (EKG)
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Smoking Cessation Counseling
Abdominal Pain
Acute Bronchitis
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Acute Lower Respiratory Infection
Acute Pharyngitis
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Bronchoscopy
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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
  • MVP Health Care
  • Cigna
  • Aetna
  • Oxford Health Plans
  • Medicaid
  • Humana
  • MagnaCare
  • Tricare
  • United Healthcare
  • Affinity Health Plan

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)

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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
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Photo: Dr. Karen Mrejen, MD
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Dr. Mrejen's Office & Staff

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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
  • Critical Care Medicine, 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?
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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. 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 Critical Care Medicine, 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