Ms Grace L Keenan, MD, CEO - Medicare Internal Medicine in Ashburn, VA

Ms Grace L Keenan, MD, CEO is a medicare enrolled "Internal Medicine" physician in Ashburn, Virginia. Her current practice location is 21785 Filigree Ct, Suite 100, Ashburn, Virginia. You can reach out to her office (for appointments etc.) via phone at (703) 554-1100.

Ms Grace L Keenan is licensed to practice in Virginia (license number 0101041478) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1770518821.

Contact Information

Ms Grace L Keenan, MD, CEO
21785 Filigree Ct, Suite 100,
Ashburn, VA 20147-6213
(703) 554-1100
(703) 554-1110

Map and Direction




Physician's Profile

Full NameMs Grace L Keenan
GenderFemale
SpecialityInternal Medicine
Location21785 Filigree Ct, Ashburn, Virginia
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1770518821
  • Provider Enumeration Date: 07/11/2006
  • Last Update Date: 02/23/2016
  Medicare PECOS Information:
  • PECOS PAC ID: 6406849413
  • Enrollment ID: I20040406000613

Medical Identifiers

Medical identifiers for Ms Grace L Keenan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1770518821NPI-NPPES
1770518821MedicaidVA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 0101041478 (Virginia)Primary

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 Grace L Keenan allows following entities to bill medicare on her behalf.
Entity NameInova Physician Partners Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1215264916
PECOS PAC ID: 2466581772
Enrollment ID: O20100525000846
Entity NameInova Health Care Services
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1275886418
PECOS PAC ID: 2466351093
Enrollment ID: O20121219000193

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 Grace L Keenan 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 AddressPractice Location Address
Ms Grace L Keenan, MD, CEO
21785 Filigree Ct, Suite 100,
Ashburn, VA 20147-6213

Ph: (703) 554-1100
Ms Grace L Keenan, MD, CEO
21785 Filigree Ct, Suite 100,
Ashburn, VA 20147-6213

Ph: (703) 554-1100

Reviews and Comments


Internal Medicine Doctors in Ashburn, VA

Dr. Fuad Alykhan, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 44320 Premier Plz, Suite 120, Ashburn, VA 20147
Phone: 703-726-9056    Fax: 703-726-9058
Ms. Mysore Vijayendra Maitri, M.D
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 22505 Landmark Ct Ste 210, Ashburn, VA 20148
Phone: 571-612-6600    Fax: 571-612-6601
Dr. Hoang An N Nguyen, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 43480 Yukon Dr, Suite 100, Ashburn, VA 20147
Phone: 571-252-6000    Fax: 571-252-6011
Dr. Amr Hossam Eldin Behiri, DO
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 41816 Fenway Cir, Ashburn, VA 20148
Phone: 347-761-7200    
Venkateswar R Veerapalli, MD
Internal Medicine
Medicare: May Accept Medicare Assignments
Practice Location: 21001 Sycolin Rd Ste 180, Ashburn, VA 20147
Phone: 703-687-4363    
Dr. Khizra Alam Khan, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 43215 Somerset Hills Ter, Ashburn, VA 20147
Phone: 571-244-9517    
Ms. Nazia Sabah Shamsuddin, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 21785 Filigree Ct Ste 100, Ashburn, VA 20147
Phone: 703-554-1122    Fax: 703-554-1047

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.