Dr Margaret K Williamson, MD in Oak Lawn, IL - Medicare Emergency Medicine

Dr Margaret K Williamson, MD is a medicare enrolled "Emergency Medicine" physician in Oak Lawn, Illinois. She went to University Of Virginia School Of Medicine and graduated in 2007 and has 18 years of diverse experience with area of expertise as Emergency Medicine. She is a member of the group practice Northwestern Medical Faculty Foundation and her current practice location is 4440 W 95th St, Oak Lawn, Illinois. You can reach out to her office (for appointments etc.) via phone at (434) 466-2969.

Dr Margaret K Williamson is licensed to practice in Illinois (license number 036126342) 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 1154514867.

Contact Information

	Dr Margaret K Williamson, MD
	4440 W 95th St, Oak Lawn, IL 60453-2600
	(434) 466-2969
	Not Available

Map and Direction

Physician's Profile

Full Name	Dr Margaret K Williamson
Gender	Female
Speciality	Emergency Medicine
Experience	18 Years
Location	4440 W 95th St, Oak Lawn, Illinois
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 Margaret K Williamson attended and graduated from University Of Virginia School Of Medicine in 2007

NPI Data:

NPI Number: 1154514867
Provider Enumeration Date: 08/26/2007
Last Update Date: 03/12/2024

Medicare PECOS Information:

PECOS PAC ID: 0446420384
Enrollment ID: I20110831000604

Medical Identifiers

Medical identifiers for Dr Margaret K Williamson such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1154514867	NPI	-	NPPES

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207P00000X	Emergency Medicine	125-052545 (Illinois)	Secondary
207P00000X	Emergency Medicine	036126342 (Illinois)	Primary

Medical Facilities Affiliation

Facility Name	Location	Facility Type
Northwestern Memorial Hospital	Chicago, IL	Hospital

Group Practice Association

Group Practice Name	Group PECOS PAC ID	No. of Members
Northwestern Medical Faculty Foundation	4587576814	3871

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 Margaret K Williamson allows following entities to bill medicare on her behalf.

Entity Name	Northwestern Medical Faculty Foundation
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1346235314 PECOS PAC ID: 4587576814 Enrollment ID: O20031105000541

Entity Name	Advocate Health And Hospitals Corporation
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1700824455 PECOS PAC ID: 7810800935 Enrollment ID: O20031106000064

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 Margaret K Williamson 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 Margaret K Williamson, MD 29373 Network Pl, Chicago, IL 60673-1293 Ph: (847) 390-5900	Dr Margaret K Williamson, MD 4440 W 95th St, Oak Lawn, IL 60453-2600 Ph: (434) 466-2969

Reviews and Comments

Emergency Medicine Doctors in Oak Lawn, IL

Michael Cirone, M.D. Emergency Medicine Medicare: Accepting Medicare Assignments Practice Location: 4440 W 95th St, Oak Lawn, IL 60453 Phone: 708-684-5375 Fax: 708-684-1028
Peter Peraud, M.D. Emergency Medicine Medicare: Accepting Medicare Assignments Practice Location: 4440 W 95th St, Oak Lawn, IL 60453 Phone: 708-684-4077
Dr. Thomas Kevin Seagraves, MD Emergency Medicine Medicare: Accepting Medicare Assignments Practice Location: 4440 W 95th St, Oak Lawn, IL 60453 Phone: 708-283-5500
Dr. Timothy Koplik Henderson, MD Emergency Medicine Medicare: Medicare Enrolled Practice Location: 4440 W 95th St, Oak Lawn, IL 60453 Phone: 708-684-5375
Elizabeth Kunjummen, DO Emergency Medicine Medicare: Accepting Medicare Assignments Practice Location: 4440 W 95th St, Oak Lawn, IL 60453 Phone: 708-283-5500
Ms. Meghan Maureen Hurley, MD Emergency Medicine Medicare: Accepting Medicare Assignments Practice Location: 4440 W 95th St, Oak Lawn, IL 60453 Phone: 708-684-5354
Nicolas Kettaneh, M.D. Emergency Medicine Medicare: Medicare Enrolled Practice Location: 4440 W 95th St, Oak Lawn, IL 60453 Phone: 708-684-5354 Fax: 708-684-1028

Dr Margaret K Williamson, MD - Medicare Emergency Medicine in Oak Lawn, IL