Karen Mrejen, MD

Pulmonary Disease Internal Medicine

Internal Medicine

(516) 536-8151Rockville Centre, NY
Telehealth Available
NPI Active per CMS — Q2 2026

Karen Mrejen, MD has been part of the Rockville Centre medical community since 2006 in group practice. Trained at Albany Medical College of Union University (class of 1995), she has been practicing for over 31 years. Pulmonologists specialize in respiratory conditions including asthma, COPD, pneumonia, pulmonary fibrosis, sleep apnea, and more.

1 of 339 Internal Medicine providers in NYSee all Internal Medicine in Rockville Centre31+ years experienceNPI since 2006

Data updated 2013-11-14 on CMS NPPES

Contact & Location

Practice Location

200 N Village Ave Suite 300, Rockville Centre, NY 11570-2341

Fax: (516) 536-8153

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Background & Specialty

Education, training, and specialty classification from CMS NPPES and Medicare records.

Pulmonologists specialize in respiratory conditions including asthma, COPD, pneumonia, pulmonary fibrosis, sleep apnea, and lung cancer screening. They manage patients on ventilators and perform bronchoscopies.

Taxonomy: 207RP1001X

Education & Training

Albany Medical College of Union University (Class of 1995)

Virtual Pulmonary Disease Care With Karen Mrejen

NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.

Schedule a virtual visit with Karen Mrejen for follow-ups, medication reviews, and ongoing care — no travel to Rockville Centre required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes.

Frequently Asked Questions

Common questions about Karen Mrejen

NPI records show Dr. Mrejen as active with telehealth listed in Rockville Centre, NY. Note: NPI status alone doesn't confirm open availability — always call ahead. Phone: (516) 536-8151.

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Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.

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