Ms Karen Millen, LCSW in Herndon, VA - Medicare Clinical Social Worker Provider

Ms Karen Millen, LCSW is a medicare enrolled "Social Worker - Clinical" provider in Herndon, Virginia. She went to Boston University School Of Medicine and graduated in 1989 and has 37 years of diverse experience with area of expertise as Clinical Social Worker. She is a member of the group practice County Of Loudoun Virginia and her current practice location is 447 Carlisle Dr Ste A, Herndon, Virginia. You can reach out to her office (for appointments etc.) via phone at (571) 307-7307.

Ms Karen Millen is licensed to practice in Virginia (license number 0904003844) 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 1740390244.

Contact Information

	Ms Karen Millen, LCSW
	447 Carlisle Dr Ste A, Herndon, VA 20170-5605
	(571) 307-7307
	(571) 307-7307

Map and Direction

Healthcare Provider's Profile

Full Name	Ms Karen Millen
Gender	Female
Speciality	Clinical Social Worker
Experience	37 Years
Location	447 Carlisle Dr Ste A, Herndon, Virginia
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:

Ms Karen Millen attended and graduated from Boston University School Of Medicine in 1989

NPI Data:

NPI Number: 1740390244
Provider Enumeration Date: 08/30/2006
Last Update Date: 02/25/2026

Medicare PECOS Information:

PECOS PAC ID: 9335204783
Enrollment ID: I20090218000336

Medical Identifiers

Medical identifiers for Ms Karen Millen such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1740390244	NPI	-	NPPES

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
1041C0700X	Social Worker - Clinical	0904003844 (Virginia)	Primary

Group Practice Association

Group Practice Name	Group PECOS PAC ID	No. of Members
County Of Loudoun Virginia	8426039959	27

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. Ms Karen Millen allows following entities to bill medicare on her behalf.

Entity Name	County Of Loudoun Virginia
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1386753291 PECOS PAC ID: 8426039959 Enrollment ID: O20040528000959

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. Ms Karen Millen 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
Ms Karen Millen, LCSW 12648 Fantasia Dr, Herndon, VA 20170-2901 Ph: (571) 307-7307	Ms Karen Millen, LCSW 447 Carlisle Dr Ste A, Herndon, VA 20170-5605 Ph: (571) 307-7307

Reviews and Comments

Social Worker in Herndon, VA

Cynthia Jane Rogers, DMIN, LCSW Clinical Social Worker Medicare: Not Enrolled in Medicare Practice Location: 435a Carlisle Dr Ste 104, Herndon, VA 20170 Phone: 703-674-8628
Kristine L Pantke, MSW, LCSW Clinical Social Worker Medicare: Accepting Medicare Assignments Practice Location: 13655 Dulles Technology Dr Ste 120, Herndon, VA 20171 Phone: 571-665-4025
Aliya Mccants, Clinical Social Worker Medicare: Not Enrolled in Medicare Practice Location: 2340 Carta Way Apt 2048, Herndon, VA 20171 Phone: 225-456-1449
Mrs. Gretchen Dorr Horst, LCSW Clinical Social Worker Medicare: May Accept Medicare Assignments Practice Location: 429b Carlisle Dr # 205, Herndon, VA 20170 Phone: 703-391-7380 Fax: 703-783-8655
Barbara Jean Lennon, LCSW Clinical Social Worker Medicare: Not Enrolled in Medicare Practice Location: 3221 W Ox Rd, Herndon, VA 20171 Phone: 703-648-0887 Fax: 703-758-6641
Michelle Cades-loggia, LCSW Clinical Social Worker Medicare: Not Enrolled in Medicare Practice Location: 13457 Cobra Ct, Herndon, VA 20171 Phone: 703-733-0221
Lauren Elmer, Clinical Social Worker Medicare: Not Enrolled in Medicare Practice Location: 2579 John Milton Dr Ste 210, Herndon, VA 20171 Phone: 703-214-4925

Ms Karen Millen, LCSW - Medicare Clinical Social Worker in Herndon, VA