ROBERT W. BREEN D.C.
NPI 1609977982
Chiropractor in Manassas, VA
About Robert W. Breen D.c. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ROBERT W. BREEN D.C. (NPI 1609977982) is an individual chiropractor in Manassas, Virginia, licensed in Virginia (0104000765) and active in the NPI registry since September 2006. He is a graduate of Other (1988).
NPPES Registry Identity
Specialties & Licenses
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 and accepts Medicare assignment
Robert W. Breen D.c. 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 Robert Breen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Manassas, VA 20110
- Reassigned Medicare billing, Virginia enrollment
Warrenton, VA 20186
- Reassigned Medicare billing, Virginia enrollment
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 2
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.
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MANASSAS, VA 20110
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 Robert Breen's NPI number?
The NPI number for Robert Breen is 1609977982. It was assigned to this individual provider in the NPPES registry on September 26, 2006.
Where is Robert Breen located?
Robert Breen practices at 8565 Sudley Rd Ste A, Manassas, VA 20110. The listed phone number is (703) 368-4040.
What is Robert Breen's specialty?
The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.
Is Robert Breen enrolled in Medicare?
Yes. Robert Breen 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 Robert Breen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Robert Breen reassigns Medicare benefits to 2 organizations: Breen Chiropractic Clinic, PC (Manassas, VA) and Warrenton Chiropractic Center, LLC (Warrenton, VA). 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 Robert Breen'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 Robert Breen was last updated on March 3, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Robert W. Breen, D.C. · NPI 1609977982
Chiropractor provider in Manassas, Virginia. Individual provider, active in the CMS NPPES registry since September 26, 2006.
## Identity
- **NPI:** 1609977982 (Entity type: Individual)
- **Enumerated:** September 26, 2006
- **Primary specialty:** Chiropractor · taxonomy 111N00000X
- **State license:** 0104000765 (Virginia)
- **Sole proprietor:** No
## Practice location
- **Address:** 8565 SUDLEY RD STE A, Manassas, VA 20110-3864
- **Phone:** (703) 368-4040
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Breen Chiropractic Clinic, PC (NPI 1659697597, Manassas, VA); Warrenton Chiropractic Center, LLC (NPI 1346549532, Warrenton, VA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1988
## Record status
- **NPPES last updated:** March 3, 2010
- **Other identifiers:** Medicare UPIN T92994 (VA)
---
Source: [NPI Profile](https://npiprofile.com/npi/1609977982) · Data from the CMS NPPES public registry.