Marianne Elise Crowley, FNP-BC - Medicare Nurse Practitioner in Leesburg, VA

Marianne Elise Crowley, FNP-BC is a medicare enrolled "Nurse Practitioner" in Leesburg, Virginia. She went to George Washington University School Of Medicine and graduated in 2025 and has 1 years of diverse experience with area of expertise as Nurse Practitioner. She is a member of the group practice Loudoun Medical Group, Pc and her current practice location is 19450 Deerfield Avenue, Suite 325, Leesburg, Virginia. You can reach out to her office (for appointments etc.) via phone at (703) 202-1111.

Marianne Elise Crowley is licensed to practice in Virginia (license number 0024194718) 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 1275400210.

Contact Information

Marianne Elise Crowley, FNP-BC
19450 Deerfield Avenue, Suite 325,
Leesburg, VA 20176-8503
(703) 202-1111
(571) 291-2966

Map and Direction




Provider's Profile

Full NameMarianne Elise Crowley
GenderFemale
SpecialityNurse Practitioner
Experience1 Years
Location19450 Deerfield Avenue, Suite 325, Leesburg, Virginia
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Marianne Elise Crowley attended and graduated from George Washington University School Of Medicine in 2025
  NPI Data:
  • NPI Number: 1275400210
  • Provider Enumeration Date: 10/23/2025
  • Last Update Date: 06/01/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 7911491907
  • Enrollment ID: I20260114000831

Medical Identifiers

Medical identifiers for Marianne Elise Crowley such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1275400210NPI-NPPES
0024194718MedicaidVA
30018485530001MedicaidVA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363L00000XNurse Practitioner 0024194718 (Virginia)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Loudoun Medical Group, Pc0042119661291

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. Marianne Elise Crowley 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
Marianne Elise Crowley, FNP-BC
224d Cornwall St Nw Ste 403,
Leesburg, VA 20176-2704

Ph: (703) 737-6010
Marianne Elise Crowley, FNP-BC
19450 Deerfield Avenue, Suite 325,
Leesburg, VA 20176-8503

Ph: (703) 202-1111

Reviews and Comments


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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.