CHRISTINA MARCHEVA VASSILEVA M.D.
NPI 1124172135
Thoracic Surgery (Cardiothoracic Vascular Surgery) in Burlington, MA
About Christina Marcheva Vassileva M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHRISTINA MARCHEVA VASSILEVA M.D. (NPI 1124172135) is an individual thoracic surgery (cardiothoracic vascular surgery) provider in Burlington, Massachusetts, licensed in Massachusetts (231930) and active in the NPI registry since January 2007. She is enrolled in Medicare PECOS, is affiliated with Lahey Hospital & Medical Center, Burlington, and maintains 4 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 4
Other Identifiers 4
Accepted Insurance
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
Christina Marcheva Vassileva M.d. 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.
Medicare Billing Reassignments
13Medicare enrollment records show Christina Vassileva reassigns Medicare billing to 13 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Burlington, MA 01805
- Reassigned Medicare billing, Massachusetts enrollment
- Also billed through NPI 1063447316 (Massachusetts)
- 1,574 clinicians in this Medicare group
Worcester, MA 01608
- Reassigned Medicare billing, Massachusetts enrollment
- 197 clinicians in this Medicare group
North Hampton, NH 03862
- Reassigned Medicare billing, New Hampshire enrollment
- 185 clinicians in this Medicare group
Fairhaven, MA 02719
- Reassigned Medicare billing, Massachusetts enrollment
- 1,144 clinicians in this Medicare group
Hyannis, MA 02601
- Reassigned Medicare billing, Massachusetts enrollment
- 678 clinicians in this Medicare group
Richmond, VA 23227
- Reassigned Medicare billing, Virginia enrollment
- 386 clinicians in this Medicare group
Fond Du Lac, WI 54935
- Reassigned Medicare billing, Wisconsin enrollment
- 606 clinicians in this Medicare group
Neenah, WI 54956
- Reassigned Medicare billing, Wisconsin enrollment
- 444 clinicians in this Medicare group
Madison, WI 53715
- Reassigned Medicare billing, Wisconsin enrollment
- 1,377 clinicians in this Medicare group
Paducah, KY 42003
- Reassigned Medicare billing, Kentucky enrollment
- 283 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.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Lahey Hospital & Medical Center, Burlington
Acute Care Hospitals · Burlington, MAPortsmouth Regional Hospital
Acute Care Hospitals · Portsmouth, NHAscension NE Wisconsin - St Elizabeth Campus
Acute Care Hospitals · Appleton, WISsm Health St Mary's Hospital - Madison
Acute Care Hospitals · Madison, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01805 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
BURLINGTON, MA 01805
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 Christina Vassileva's NPI number?
The NPI number for Christina Vassileva is 1124172135. It was assigned to this individual provider in the NPPES registry on January 23, 2007.
Where is Christina Vassileva located?
Christina Vassileva practices at 41 Mall Rd, Burlington, MA 01805. The listed phone number is (781) 744-8000.
What is Christina Vassileva's specialty?
The primary specialty registered for this NPI is Thoracic Surgery (Cardiothoracic Vascular Surgery) with taxonomy code 208G00000X.
Is Christina Vassileva enrolled in Medicare?
Yes. Christina Vassileva 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 organizations bill Medicare for Christina Vassileva's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Christina Vassileva reassigns Medicare benefits to 13 organizations: Lahey Clinic, Inc. (Burlington, MA), Saint Vincent Physician Services, Inc. (Worcester, MA), Appledore Medical Group, Inc. (North Hampton, NH), Southcoast Physicians Group, Inc. (Fairhaven, MA), Physicians Of Cape Cod Hospital (Hyannis, MA) and 8 more organizations, listed in the Medicare section above. Each 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 Christina Vassileva's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Christina Vassileva accept?
Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Nebraska, Dean Health Plan, Network Health and Oscar Insurance Company and 1 other insurer list Christina Vassileva as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Christina Vassileva affiliated with any hospitals?
According to CMS data, Christina Vassileva is affiliated with Lahey Hospital & Medical Center, Burlington, Portsmouth Regional Hospital, Ascension NE Wisconsin - St Elizabeth Campus and Ssm Health St Mary's Hospital - Madison.
When was this NPI record last updated?
The NPPES record for Christina Vassileva was last updated on August 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Christina Marcheva Vassileva, M.D. · NPI 1124172135
Thoracic Surgery (Cardiothoracic Vascular Surgery) physician in Burlington, Massachusetts. Individual provider, active in the CMS NPPES registry since January 23, 2007.
## Identity
- **NPI:** 1124172135 (Entity type: Individual)
- **Enumerated:** January 23, 2007
- **Primary specialty:** Thoracic Surgery (Cardiothoracic Vascular Surgery) · taxonomy 208G00000X
- **State license:** 231930 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 41 MALL RD, Burlington, MA 01805-3224
- **Phone:** (781) 744-8000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 13 organizations under Medicare reassignment (form CMS-855R): Lahey Clinic, Inc. (NPI 1538194980, Burlington, MA); Saint Vincent Physician Services, Inc. (NPI 1013997329, Worcester, MA); Appledore Medical Group, Inc. (NPI 1174512693, North Hampton, NH); Southcoast Physicians Group, Inc. (NPI 1861830143, Fairhaven, MA); Physicians Of Cape Cod Hospital (NPI 1679832364, Hyannis, MA); and 8 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Johns Hopkins University School Of Medicine, class of 2002
## Record status
- **NPPES last updated:** August 22, 2025
- **Other identifiers:** Medicaid 036124292 (IL); Medicaid 110120533A (MA); Medicaid 10073100 (FL); and 1 more
---
Source: [NPI Profile](https://npiprofile.com/npi/1124172135) · Data from the CMS NPPES public registry.