KM
24 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Mrejen, Pulmonologist in Bay Shore, NY?
Dr. Karen Mrejen, MD is a Pulmonologist, who primarily practices in Bay Shore, NY with 2 additional practice locations. She has been practicing for over 24 years and is board certified. Dr. Mrejen graduated from Albany Medical College and completed her residency at Montefiore Medical Center. Dr. Mrejen is fluent in English and French, and is currently seeing new patients. Dr. Mrejen’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Mrejen’s office at (516) 536-8151.
Where did Dr. Mrejen go to medical school and complete their residency?
Fellowship: Mount Sinai School of Medicine
Residency: Montefiore Medical Center
Medical School: Albany Medical College
What languages does Dr. Mrejen speak?
Dr. Mrejen and their clinical team can communicate with patients in the following languages:
English
French
What conditions does Dr. Mrejen treat?
As a Pulmonologist, Dr. Mrejen diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Mrejen. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.
Also known as:
- Asthma
- Moderate Persistent Asthma
- Mild Intermittent Asthma
- Reactive Airway Disease
- Bronchial Asthma
- Allergic Asthma
- Ongoing Moderate Asthma
- Regular Moderate Asthma
- Chronic Moderate Asthma
- Occasional Asthma
- Mild Asthma Attacks
- Infrequent Asthma
ICD-10 Codes:
- J45909: Unspecified asthma, uncomplicated
- J4540: Moderate persistent asthma, uncomplicated
- J4520: Mild intermittent asthma, uncomplicated
Also known as:
- COPD
- Chronic Obstructive Pulmonary Disease
- Chronic Lung Disease
- Emphysema and Chronic Bronchitis
ICD-10 Codes:
- J449: Chronic obstructive pulmonary disease, unspecified
- J4489: Other specified chronic obstructive pulmonary disease
Also known as:
- Other Abnormal Findings on Lung Scan
- Single Lung Nodule
- Lung Disease
- Unusual Lung Scan Results
- Atypical Lung Imaging
- Nonspecific Lung Abnormality
- Lung Spot
- Pulmonary Nodule
- Spot on Lung Scan
ICD-10 Codes:
- R918: Other nonspecific abnormal finding of lung field
- R911: Solitary pulmonary nodule
Also known as:
- Obstructive Sleep Apnea
- Sleep Apnea
- Obstructive sleep apnea
- OSA
- Blocked airway during sleep
- Snoring and gasping during sleep
ICD-10 Codes:
- G4733: Obstructive sleep apnea (adult) (pediatric)
Also known as:
- Shortness of Breath
- Breathing Problems
- Difficulty breathing
- Breathlessness
- Dyspnea
ICD-10 Codes:
- R0602: Shortness of breath
- R0609: Other forms of dyspnea
Also known as:
- Abnormal Findings on Scans of Other Specific Body Structures
- Unusual Scan Results (Other Body Parts)
- Atypical Imaging Findings (Other)
- Abnormal X-ray/MRI/CT (Other)
ICD-10 Codes:
- R9389: Abnormal findings on diagnostic imaging of other specified body structures
Also known as:
- Cough
- Coughing
- Persistent cough
- Chronic cough
ICD-10 Codes:
- R059: Cough, unspecified
Also known as:
- Cigarette Addiction
- Smoking
- Smoking Addiction
- Nicotine Dependence from Cigarettes
- Tobacco Addiction
ICD-10 Codes:
- F17210: Nicotine dependence, cigarettes, uncomplicated
Also known as:
- Snoring
- Loud breathing during sleep
- Noisy sleep
- Obstructive snoring
ICD-10 Codes:
- R0683: Snoring
Also known as:
- Bronchiectasis
- Bronchial Disorder
- Damaged Airways
- Chronic Bronchial Dilation
- Lung Airway Damage
ICD-10 Codes:
- J479: Bronchiectasis, uncomplicated
Also known as:
- Allergic Rhinitis
- Allergy
- Nasal allergies
- Allergy rhinitis
- Chronic runny nose
ICD-10 Codes:
- J309: Allergic rhinitis, unspecified
Also known as:
- Pre-Procedure Respiratory Examination
- Pre-op lung check
- Breathing assessment before surgery
- Respiratory clearance for procedure
ICD-10 Codes:
- Z01811: Encounter for preprocedural respiratory examination
Also known as:
- Immunization Visit
- Vaccines
- Vaccination appointment
- Shot visit
- Immunization encounter
ICD-10 Codes:
- Z23: Encounter for immunization
Also known as:
- History of Nicotine Dependence
- E-Cigarettes
- Smokeless Tobacco
- Smoking
- Past nicotine addiction
- Previous smoking habit
- History of tobacco use disorder
ICD-10 Codes:
- Z87891: Personal history of nicotine dependence
Also known as:
- Acid Reflux
- GERD
- Acid Reflux (GER & GERD) in Adults
- Acid Reflux (GER & GERD) in Children
- Acid Reflux (GER & GERD) in Infants
- Gastroesophageal Reflux
- Heartburn
- Indigestion
ICD-10 Codes:
- K219: Gastro-esophageal reflux disease without esophagitis
Which procedures does Dr. Mrejen perform as a Pulmonologist?
As a Pulmonologist, procedures performed by a Dr. Karen Mrejen may include:
- Bronchoscopy
- Endobronchial Ultrasound (EBUS)
- Interventional Bronchoscopy
- Intrathoracic Adenopathy
- Lung Cancer Screening
- Lung Cancer Staging
- Lung Surgery Consultation
- Mechanical Ventilation
For detailed information, please contact Dr. Mrejen's office.
Does Dr. Mrejen accept my insurance?
Dr. Mrejen accepts most major insurance plans. Important: Please call our office at (516) 536-8151 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Mrejen accept in Bay Shore, NY?
Dr. Mrejen in Bay Shore, NY accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Centers Plan for Healthy Living
Corporate Services
CVS Health (formerly Aetna)
Express Scripts
MagnaCare Rx
Medicare
Service Employees International Union (SEIU)
View All Insurances
Where is Dr. Mrejen's office located?
What is Dr. Mrejen's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Mrejen's National Provider Identifier (NPI) number is 1902999212.
What common questions do patients ask about Dr. Mrejen?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Mrejen
What is Dr. Karen Mrejen's specialty?
Dr. Mrejen is a Pulmonologist near Bay Shore, NY. An internist specializing in the treatment of lung and airway diseases. The pulmonologist diagnoses and manages conditions such as cancer, pneumonia, pleurisy, asthma, occupational and environmental illnesses, bronchitis, sleep disorders, emphysema, and other complex lung disorders. Contact Dr. Mrejen to book an appointment today.
Is this Dr. Karen Mrejen affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Mrejen is affiliated with South Shore University Hospital, Long Island Jewish Medical Center which are a Castle Connolly Top Hospitals. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
Where can I learn more about Pulmonologist?
Explore Pulmonologist with insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Karen Mrejen accepting new patients in Bay Shore, NY?
Yes, Dr. Karen Mrejen is accepting new patients at this time.
Does Dr. Karen Mrejen offer online booking?
Please contact Dr. Mrejen's office at (516) 536-8151 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Karen Mrejen?
Please contact Dr. Mrejen's office at (516) 536-8151 for information regarding telehealth appointment availability or for scheduling assistance.
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