SARA HAZLETT WOO MD
NPI 1740396738
Emergency Medicine in Leesburg, VA
About Sara Hazlett Woo Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SARA HAZLETT WOO MD (NPI 1740396738) is an individual emergency medicine provider in Leesburg, Virginia, licensed in Virginia (0101238758) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Sara Hazlett Woo Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Sara Woo reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Leesburg, VA 20176
- Reassigned Medicare billing, Virginia enrollment
- 103 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 20176 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LEESBURG, VA 20176
LEESBURG, VA 20176
LEESBURG, VA 20176
Frequently 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 Sara Woo's NPI number?
The NPI number for Sara Woo is 1740396738. It was assigned to this individual provider in the NPPES registry on August 22, 2006. The provider is also known as Sara Bradshaw Hazlett MD.
Where is Sara Woo located?
Sara Woo practices at 44045 Riverside Pkwy Loudoun Hospital Center, Leesburg, VA 20176. The listed phone number is (703) 858-6044.
What is Sara Woo's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Sara Woo enrolled in Medicare?
Yes. Sara Woo is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Sara Woo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sara Woo reassigns Medicare benefits to Commonwealth Emergency Physicians PC (Leesburg, VA). The 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 Sara Woo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Sara Woo was last updated on February 26, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Sara Hazlett Woo, MD · NPI 1740396738
Emergency Medicine physician in Leesburg, Virginia. Individual provider, active in the CMS NPPES registry since August 22, 2006.
## Identity
- **NPI:** 1740396738 (Entity type: Individual)
- **Enumerated:** August 22, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 0101238758 (Virginia)
- **Sole proprietor:** No
## Practice location
- **Address:** 44045 RIVERSIDE PKWY, LOUDOUN HOSPITAL CENTER, Leesburg, VA 20176-5101
- **Phone:** (703) 858-6044 · **Fax:** (703) 858-6775
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Commonwealth Emergency Physicians PC (NPI 1598723082, Leesburg, VA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 26, 2008
- **Other identifiers:** Medicare PIN 011658C77 (VA)
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Source: [NPI Profile](https://npiprofile.com/npi/1740396738) · Data from the CMS NPPES public registry.