Dr Karen Mrejen, MD in Rockville Centre, NY - Medicare Pulmonary Disease

Dr Karen Mrejen, MD is a medicare enrolled "Internal Medicine - Pulmonary Disease" physician in Rockville Centre, New York. She went to Albany Medical College Of Union University and graduated in 1995 and has 29 years of diverse experience with area of expertise as Pulmonary Disease. She is a member of the group practice North Shore - Lij Medical Pc and her current practice location is 200 N Village Ave, Suite 300, Rockville Centre, New York. You can reach out to her office (for appointments etc.) via phone at (516) 536-8151.

Dr Karen Mrejen is licensed to practice in New York (license number 224857) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1902999212.

Contact Information

	Dr Karen Mrejen, MD
	200 N Village Ave, Suite 300, Rockville Centre, NY 11570-2341
	(516) 536-8151
	(516) 536-8153

Map and Direction

Physician's Profile

Full Name	Dr Karen Mrejen
Gender	Female
Speciality	Pulmonary Disease
Experience	29 Years
Location	200 N Village Ave, Rockville Centre, New York
Accepts Medicare Assignments	Yes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.

Medical Education and Training:

Dr Karen Mrejen attended and graduated from Albany Medical College Of Union University in 1995

NPI Data:

NPI Number: 1902999212
Provider Enumeration Date: 10/02/2006
Last Update Date: 11/14/2013

Medicare PECOS Information:

PECOS PAC ID: 3971773961
Enrollment ID: I20120724000994

Medical Identifiers

Medical identifiers for Dr Karen Mrejen such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1902999212	NPI	-	NPPES

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207RP1001X	Internal Medicine - Pulmonary Disease	224857 (New York)	Primary

Medical Facilities Affiliation

Facility Name	Location	Facility Type
Northwell Hospital Glen Cove	Glen cove, NY	Hospital
Ns/lij Hs Southside Hospital	Bay shore, NY	Hospital
North Shore University Hospital	Manhasset, NY	Hospital
Long Island Jewish Medical Center	New hyde park, NY	Hospital

Group Practice Association

Group Practice Name	Group PECOS PAC ID	No. of Members
North Shore - Lij Medical Pc	3375701568	5120

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr Karen Mrejen allows following entities to bill medicare on her behalf.

Entity Name	Louis Saffran Physician Pllc
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1467500082 PECOS PAC ID: 3678559796 Enrollment ID: O20060104000018

Entity Name	North Shore - Lij Medical Pc
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1053688572 PECOS PAC ID: 3375701568 Enrollment ID: O20120220000262

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr Karen Mrejen is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing Address	Practice Location Address
Dr Karen Mrejen, MD 200 N Village Ave, Suite 300, Rockville Centre, NY 11570-2341 Ph: (516) 536-8151	Dr Karen Mrejen, MD 200 N Village Ave, Suite 300, Rockville Centre, NY 11570-2341 Ph: (516) 536-8151

Reviews and Comments

Internal Medicine Doctors in Rockville Centre, NY

Manish B Undavia, M.D. Pulmonary Disease Medicare: Accepting Medicare Assignments Practice Location: 242 Merrick Rd, Suite 402, Rockville Centre, NY 11570 Phone: 516-763-2800
Richard Horowitz, M.D. Pulmonary Disease Medicare: Accepting Medicare Assignments Practice Location: 242 Merrick Rd, Suite 402, Rockville Centre, NY 11570 Phone: 516-763-2800
Nenad Grlic, DO Pulmonary Disease Medicare: Accepting Medicare Assignments Practice Location: 1000 N. Village Avenue, Rockville Centre, NY 11571 Phone: 516-705-1818
Mary K Leung, MD Pulmonary Disease Medicare: Accepting Medicare Assignments Practice Location: 242 Merrick Rd Ste 301, Rockville Centre, NY 11570 Phone: 516-536-1455 Fax: 516-536-1598
Richard M. Lee, MD Pulmonary Disease Medicare: Accepting Medicare Assignments Practice Location: 242 Merrick Rd, Suite 301, Rockville Centre, NY 11570 Phone: 516-536-1455 Fax: 516-536-1598
Varvara Alexiadis, MD Pulmonary Disease Medicare: Accepting Medicare Assignments Practice Location: 242 Merrick Rd, Ste 403, Rockville Centre, NY 11570 Phone: 516-536-3700 Fax: 516-536-4309
Dr. Ellen Haig, M.D. Pulmonary Disease Medicare: Accepting Medicare Assignments Practice Location: 2 Lincoln Ave, Suite 201, Rockville Centre, NY 11570 Phone: 516-536-0600 Fax: 516-536-0694

Dr Karen Mrejen, MD - Medicare Pulmonary Disease in Rockville Centre, NY