VALENTIN K ATANASSOV MD
NPI 1811978794
Surgery in Brockton, MA
About Valentin K Atanassov Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
VALENTIN K ATANASSOV MD (NPI 1811978794) is an individual surgery provider in Brockton, Massachusetts, licensed in Massachusetts (205298) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, is affiliated with Good Samaritan Medical Center, and is a graduate of Other (1986).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
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
Valentin K Atanassov 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.
Medicare Billing Reassignments
2Medicare enrollment records show Valentin Atanassov reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02118
- Reassigned Medicare billing, Massachusetts enrollment
- 716 clinicians in this Medicare group
Watertown, MA 02472
- Reassigned Medicare billing, Massachusetts enrollment
- 991 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 8
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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Good Samaritan Medical Center
Acute Care Hospitals · Brockton, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02301 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.
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 Valentin Atanassov's NPI number?
The NPI number for Valentin Atanassov is 1811978794. It was assigned to this individual provider in the NPPES registry on November 8, 2005.
Where is Valentin Atanassov located?
Valentin Atanassov practices at 1350 Belmont St Ste 102, Brockton, MA 02301. The listed phone number is (774) 776-2991.
What is Valentin Atanassov's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is Valentin Atanassov enrolled in Medicare?
Yes. Valentin Atanassov 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 Valentin Atanassov's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Valentin Atanassov reassigns Medicare benefits to 2 organizations: Bmc Affiliated Physicians, Inc. (Boston, MA) and Steward Medical Group, Inc (Watertown, MA). 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 Valentin Atanassov's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Valentin Atanassov accept?
Health plans from WellSense Health Plan list Valentin Atanassov 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 Valentin Atanassov affiliated with any hospitals?
According to CMS data, Valentin Atanassov is affiliated with Good Samaritan Medical Center.
When was this NPI record last updated?
The NPPES record for Valentin Atanassov was last updated on March 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Valentin K Atanassov, MD · NPI 1811978794
Surgery physician in Brockton, Massachusetts. Individual provider, active in the CMS NPPES registry since November 8, 2005.
## Identity
- **NPI:** 1811978794 (Entity type: Individual)
- **Enumerated:** November 8, 2005
- **Primary specialty:** Surgery · taxonomy 208600000X
- **State license:** 205298 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 1350 BELMONT ST STE 102, Brockton, MA 02301-4430
- **Phone:** (774) 776-2991 · **Fax:** (774) 776-2996
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Bmc Affiliated Physicians, Inc. (NPI 1245320910, Boston, MA); Steward Medical Group, Inc (NPI 1629398219, Watertown, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1986
## Record status
- **NPPES last updated:** March 6, 2025
- **Other identifiers:** Medicaid 205298 (MA); Medicaid 0101958 (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1811978794) · Data from the CMS NPPES public registry.