LEESBURG STERLING FAMILY PRACTICE
NPI 1104950716
Family Medicine in Purcellville, VA
About Leesburg Sterling Family Practice NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LEESBURG STERLING FAMILY PRACTICE (NPI 1104950716) is a healthcare organization registered as a family medicine in Purcellville, Virginia and active in the NPI registry since March 2007. The organization holds a CLIA Waiver certificate valid through April 9, 2028 and lists Mary Beth Tamasy, Ceo, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Leesburg Sterling Family Practice is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
291Medicare enrollment records show 291 clinicians reassign Medicare billing to Leesburg Sterling Family Practice, which bills Medicare for the services they deliver. Of these, 5 practice at this address and 22 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 35
Nearest to this location (20)
See all 291Purcellville, VA 20132
Purcellville, VA 20132
Purcellville, VA 20132
Purcellville, VA 20132
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate of Waiver 49D1012290
Leesburg Sterling Family Practice · Purcellville, VAFrequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Loudoun Medical Group, PC's NPI number?
The NPI number for Loudoun Medical Group, PC is 1104950716. It was assigned to this organization in the NPPES registry on March 15, 2007. The provider is doing business as Leesburg Sterling Family Practice.
Where is Loudoun Medical Group, PC located?
Loudoun Medical Group, PC is located at 205 E. Hirst Road, Suite 303, Purcellville, VA 20132. The listed phone number is (540) 338-9896.
What is Loudoun Medical Group, PC's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Loudoun Medical Group, PC enrolled in Medicare?
Yes. Loudoun Medical Group, PC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Loudoun Medical Group, PC?
According to the CMS Revalidation Reassignment List (October 2026 release), 291 clinicians in 35 Medicare specialties reassign their Medicare billing to Loudoun Medical Group, PC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Nurse Practitioner (82), Family Practice (29) and Diagnostic Radiology (24). Of these, 5 practice at this address and 22 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Loudoun Medical Group, PC hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 49D1012290) is associated with this NPI, valid through April 9, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
When was this NPI record last updated?
The NPPES record for Loudoun Medical Group, PC was last updated on April 24, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Leesburg Sterling Family Practice · NPI 1104950716
Family Medicine organization in Purcellville, Virginia. Organization record, active in the CMS NPPES registry since March 15, 2007.
## Identity
- **NPI:** 1104950716 (Entity type: Organization)
- **Enumerated:** March 15, 2007
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **Legal business name:** Loudoun Medical Group, Pc
- **Organization subpart:** Yes (part of Loudoun Medical Group, Pc)
- **Authorized official:** Mary Beth Tamasy, CEO
## Practice location
- **Address:** 205 E. HIRST ROAD, SUITE 303, Purcellville, VA 20132-6602
- **Phone:** (540) 338-9896 · **Fax:** (540) 338-8235
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 291 clinicians in 35 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (82), Family Practice (29), Diagnostic Radiology (24); 5 practice at this address and 22 within 10 miles; [full list](https://npiprofile.com/npi/1104950716/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 24, 2023
- **CLIA laboratory certificates:** 1 on file
---
Source: [NPI Profile](https://npiprofile.com/npi/1104950716) · Data from the CMS NPPES public registry.