Timothy Scott Mountcastle, MD - Medicare Plastic And Reconstructive Surgery in Ashburn, VA

Timothy Scott Mountcastle, MD is a medicare enrolled "Surgery" physician in Ashburn, Virginia. He went to Howard University College Of Medicine and graduated in 1999 and has 25 years of diverse experience with area of expertise as Plastic And Reconstructive Surgery. He is a member of the group practice Loudoun Medical Group, Pc, Loudoun Medical Group, Pc and his current practice location is 44095 Pipeline Plaza, Suite 430, Ashburn, Virginia. You can reach out to his office (for appointments etc.) via phone at (703) 858-3208.

Timothy Scott Mountcastle is licensed to practice in Virginia (license number 0101239935) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1821015561.

Contact Information

Timothy Scott Mountcastle, MD
44095 Pipeline Plaza, Suite 430,
Ashburn, VA 20147-7519
(703) 858-3208
(571) 291-2289

Map and Direction




Physician's Profile

Full NameTimothy Scott Mountcastle
GenderMale
SpecialityPlastic And Reconstructive Surgery
Experience25 Years
Location44095 Pipeline Plaza, Suite 430, Ashburn, Virginia
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Timothy Scott Mountcastle attended and graduated from Howard University College Of Medicine in 1999
  NPI Data:
  • NPI Number: 1821015561
  • Provider Enumeration Date: 07/17/2006
  • Last Update Date: 12/13/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 8820066293
  • Enrollment ID: I20061110000291

Medical Identifiers

Medical identifiers for Timothy Scott Mountcastle such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1821015561NPI-NPPES
1821015561MedicaidVA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208200000XPlastic Surgery 0101239935 (Virginia)Secondary
208600000XSurgery 0101239935 (Virginia)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Loudoun Medical Group, Pc0042119661280
Loudoun Medical Group, Pc0042119661280

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. Timothy Scott Mountcastle allows following entities to bill medicare on his behalf.
Entity NameLoudoun Medical Group, Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1679591440
PECOS PAC ID: 0042119661
Enrollment ID: O20041115000474
Entity NameInova Health Care Services
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1952320061
PECOS PAC ID: 2466351093
Enrollment ID: O20080806000696

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. Timothy Scott Mountcastle 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
Timothy Scott Mountcastle, MD
224-d Cornwall Street, Nw, Suite 403,
Leesburg, VA 20176-2704

Ph: (703) 737-6010
Timothy Scott Mountcastle, MD
44095 Pipeline Plaza, Suite 430,
Ashburn, VA 20147-7519

Ph: (703) 858-3208

Reviews and Comments


Surgery Doctors in Ashburn, VA


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.