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DR. THOMAS EDWARD BORSARI MD
NPI 1003839416
Anesthesiology in Fredericksburg, VA

Active since July 26, 2006PECOS EnrolledAccepts Medicare Assignment
1001 SAM PERRY BLVD, FREDERICKSBURG, VA 22401(540) 741-7614 Get Directions Write a Review

NPPES record last updated: April 30, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 30, 2026, May 9, 2018, Nov 27, 2015 (3 updates tracked since 2015).

About Dr. Thomas Edward Borsari Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. THOMAS EDWARD BORSARI MD (NPI 1003839416) is an individual anesthesiology provider in Fredericksburg, Virginia, licensed in Virginia (0101243785) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Mary Washington Hospital, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1003839416
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDR. THOMAS EDWARD BORSARICredential: MD
Location Address1001 SAM PERRY BLVDFredericksburg, VA 22401-4453
Mailing Address1340 Central Park Blvd Ste 100Fredericksburg, VA 22401-4940 · (540) 741-4254
Phone(540) 741-7614
Sole ProprietorNo
Medical School CMSGeorgetown University School Of MedicineGraduated 2006
Enumeration DateJuly 26, 2006
Last NPPES UpdateApril 30, 20263 updates tracked since enumeration
NPPES CertifiedApril 30, 2026
✔ NPI 1003839416 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in VA · 0101243785
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
1001 SAM PERRY BLVD, Fredericksburg, VA 22401
Open in Google Maps ↗

Secondary Practice Locations 3

Location 150 Irving St NW, Dept Of AnesthesiologyWashington, DC 20422-0001 · Phone (202) 745-8000 ext. 55510
Location 2101 Hospital Center BlvdStafford, VA 22554-6200 · Phone (540) 741-7614
Location 31201 Sam Perry Blvd Ste 101Fredericksburg, VA 22401-4490 · Phone (540) 741-7614

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Thomas Edward Borsari Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5799920880
PECOS Enrollment IDI20251003000790
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Thomas Borsari reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mary Washington Healthcare Specialty Services LLC
Same address
Anesthesiology
1001 SAM PERRY BLVD
Fredericksburg, VA 22401
  • Reassigned Medicare billing, Virginia enrollment
  • 186 clinicians in this Medicare group
NPI 1821033010 (540) 741-1041

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Mary Washington Hospital

Acute Care Hospitals · Fredericksburg, VA
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number490022
Location1001 Sam Perry BoulevardFredericksburg, VA 22401 · Fredericksburg City County
Emergency services Birthing friendly

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.

JUSTIN HAMWAY RACKLEY MD
Anesthesiology
1001 SAM PERRY BLVD
FREDERICKSBURG, VA 22401
Fredericksburg City (540) 741-7614
MELYSSA CARROLL MOONEY CRNA
Nurse Anesthetist, Certified Registered
1001 SAM PERRY BLVD
FREDERICKSBURG, VA 22401
Fredericksburg City (540) 741-7614
JENNIFER LYNN BRIDY CRNA
Nurse Anesthetist, Certified Registered
1001 SAM PERRY BLVD
FREDERICKSBURG, VA 22401
Fredericksburg City (540) 741-7614
MARY WASHINGTON HOSPITAL, INC.
Internal Medicine (Cardiovascular Disease)
1001 SAM PERRY BLVD
FREDERICKSBURG, VA 22401
Fredericksburg City (540) 741-1041
NARINDER NITIN SETHI MD, MS
Radiology (Diagnostic Radiology)
1001 SAM PERRY BLVD
FREDERICKSBURG, VA 22401
Fredericksburg City (540) 361-1000
AMANDA LYNN RAE CRNA
Nurse Anesthetist, Certified Registered
1001 SAM PERRY BLVD
FREDERICKSBURG, VA 22401
Fredericksburg City (540) 741-7614
DAVID SCOTT M.D.
Radiology (Diagnostic Radiology)
1001 SAM PERRY BLVD
FREDERICKSBURG, VA 22401
Fredericksburg City (540) 741-1571
DUDLEY A DUPUY JR. MD
Pathology (Anatomic Pathology)
1001 SAM PERRY BLVD
FREDERICKSBURG, VA 22401
Fredericksburg City (540) 741-1168

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 Thomas Borsari's NPI number?

The NPI number for Thomas Borsari is 1003839416. It was assigned to this individual provider in the NPPES registry on July 26, 2006.

Where is Thomas Borsari located?

Thomas Borsari practices at 1001 Sam Perry Blvd, Fredericksburg, VA 22401. The listed phone number is (540) 741-7614.

What is Thomas Borsari's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Thomas Borsari enrolled in Medicare?

Yes. Thomas Borsari is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Thomas Borsari's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Borsari reassigns Medicare benefits to Mary Washington Healthcare Specialty Services LLC (Fredericksburg, 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 Thomas Borsari's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Thomas Borsari affiliated with any hospitals?

According to CMS data, Thomas Borsari is affiliated with Mary Washington Hospital.

When was this NPI record last updated?

The NPPES record for Thomas Borsari was last updated on April 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months 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.