BRIAN J. DUFFY MD
NPI 1952569022
Surgery - Pediatric Surgery in Wilmington, DE
About Brian J. Duffy Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
BRIAN J. DUFFY MD (NPI 1952569022) is an individual pediatric surgery provider in Wilmington, Delaware, licensed in New Jersey (25MA09981900) and active in the NPI registry since May 2008. He is enrolled in Medicare PECOS and is a graduate of State University Of New York At Buffalo School Of Medicine (1999).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 3
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
Brian J. Duffy 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
4Medicare enrollment records show Brian Duffy reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Wilmington, DE 19803
- Reassigned Medicare billing, Delaware enrollment
- 526 clinicians in this Medicare group
Sewell, NJ 08080
- Reassigned Medicare billing, New Jersey enrollment
- 383 clinicians in this Medicare group
Harleysville, PA 19438
- Reassigned Medicare billing, Pennsylvania enrollment
- Medicare enrollment name: St Lukes Physician Group Inc
- 2,851 clinicians in this Medicare group
Somerville, NJ 08876
- Reassigned Medicare billing, New Jersey enrollment
- 259 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.
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.
WILMINGTON, DE 19803
WILMINGTON, DE 19803
WILMINGTON, DE 19803
WILMINGTON, DE 19803
WILMINGTON, DE 19803
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 Brian Duffy's NPI number?
The NPI number for Brian Duffy is 1952569022. It was assigned to this individual provider in the NPPES registry on May 27, 2008.
Where is Brian Duffy located?
Brian Duffy practices at 1600 Rockland Road, Wilmington, DE 19803. The listed phone number is (302) 651-4000.
What is Brian Duffy's specialty?
The primary specialty registered for this NPI is Surgery, specializing in Pediatric Surgery, with taxonomy code 2086S0120X.
Is Brian Duffy enrolled in Medicare?
Yes. Brian Duffy 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 Brian Duffy's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Brian Duffy reassigns Medicare benefits to 4 organizations: The Nemours Foundation (Wilmington, DE), Cooper Surgical Associates, PA (Sewell, NJ), St Luke's Physician Group Inc (Harleysville, PA) and Rutgers Health-Rwj Neurosurgery Faculty (Somerville, NJ). 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 Brian Duffy's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Brian Duffy accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and AmeriHealth Caritas Next and 1 other insurer list Brian Duffy 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.
When was this NPI record last updated?
The NPPES record for Brian Duffy was last updated on January 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Brian J. Duffy, MD · NPI 1952569022
Pediatric Surgery physician in Wilmington, Delaware. Individual provider, active in the CMS NPPES registry since May 27, 2008.
## Identity
- **NPI:** 1952569022 (Entity type: Individual)
- **Enumerated:** May 27, 2008
- **Primary specialty:** Surgery - Pediatric Surgery · taxonomy 2086S0120X
- **State license:** 25MA09981900 (New Jersey)
- **Sole proprietor:** No
## Practice location
- **Address:** 1600 ROCKLAND ROAD, Wilmington, DE 19803-3607
- **Phone:** (302) 651-4000 · **Fax:** (302) 651-4945
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): The Nemours Foundation (NPI 1366594699, Wilmington, DE); Cooper Surgical Associates, PA (NPI 1841318813, Sewell, NJ); St Luke's Physician Group Inc (NPI 1184518581, Harleysville, PA); Rutgers Health-Rwj Neurosurgery Faculty (NPI 1548356926, Somerville, NJ) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** State University Of New York At Buffalo School Of Medicine, class of 1999
## Record status
- **NPPES last updated:** January 26, 2026
- **Other identifiers:** Other 002634401 (MD); Other 0169668 (NJ); Medicaid 1952569022 (DE)
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Source: [NPI Profile](https://npiprofile.com/npi/1952569022) · Data from the CMS NPPES public registry.