DR. MATTHEW MACKOWSKY
NPI 1104276542
Surgery in Elizabeth, NJ
About Dr. Matthew Mackowsky NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MATTHEW MACKOWSKY (NPI 1104276542) is an individual surgery provider in Elizabeth, New Jersey, licensed in New Jersey (25MA11200600) and active in the NPI registry since June 2016. He is enrolled in Medicare PECOS, is affiliated with St Joseph's University Medical Center Inc, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Locations 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
Dr. Matthew Mackowsky 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
7Medicare enrollment records show Matthew Mackowsky reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Elizabeth, NJ 07202
- Reassigned Medicare billing, New Jersey enrollment
- 1,894 clinicians in this Medicare group
Paterson, NJ 07503
- Reassigned Medicare billing, New Jersey enrollment
- 317 clinicians in this Medicare group
Princeton, NJ 08540
- Reassigned Medicare billing, New Jersey enrollment
- 421 clinicians in this Medicare group
Williamsport, PA 17701
- Reassigned Medicare billing, Pennsylvania enrollment
- 48 clinicians in this Medicare group
Fort Wayne, IN 46804
- Reassigned Medicare billing, Indiana enrollment
- 301 clinicians in this Medicare group
Atlanta, GA 30303
- Reassigned Medicare billing, Georgia enrollment
- 2,681 clinicians in this Medicare group
Dallas, TX 75244
- Reassigned Medicare billing, Georgia enrollment
- 488 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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St Joseph's University Medical Center Inc
Acute Care Hospitals · Paterson, NJPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 07202 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.
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.
ELIZABETH, NJ 07202
ELIZABETH, NJ 07202
ELIZABETH, NJ 07202
ELIZABETH, NJ 07202
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 Matthew Mackowsky's NPI number?
The NPI number for Matthew Mackowsky is 1104276542. It was assigned to this individual provider in the NPPES registry on June 16, 2016.
Where is Matthew Mackowsky located?
Matthew Mackowsky practices at 225 Williamson St, Elizabeth, NJ 07202. The listed phone number is (908) 994-5738.
What is Matthew Mackowsky's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is Matthew Mackowsky enrolled in Medicare?
Yes. Matthew Mackowsky 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 Matthew Mackowsky's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Mackowsky reassigns Medicare benefits to 7 organizations: Barnabas Health Medical Group PC (Elizabeth, NJ), St Josephs Medical Group PC (Paterson, NJ), Signify Health Medical Associates Of New Jersey, LLC (Princeton, NJ), Susquehanna Physician Services (Williamsport, PA), Lutheran Medical Group LLC (Fort Wayne, IN) and 2 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 Matthew Mackowsky's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Matthew Mackowsky accept?
Health plans from Oscar Health list Matthew Mackowsky 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 Matthew Mackowsky affiliated with any hospitals?
According to CMS data, Matthew Mackowsky is affiliated with St Joseph's University Medical Center Inc.
When was this NPI record last updated?
The NPPES record for Matthew Mackowsky was last updated on January 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 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.
# Dr. Matthew Mackowsky · NPI 1104276542
Surgery physician in Elizabeth, New Jersey. Individual provider, active in the CMS NPPES registry since June 16, 2016.
## Identity
- **NPI:** 1104276542 (Entity type: Individual)
- **Enumerated:** June 16, 2016
- **Primary specialty:** Surgery · taxonomy 208600000X
- **State license:** 25MA11200600 (New Jersey)
- **Sole proprietor:** No
## Practice location
- **Address:** 225 WILLIAMSON ST, Elizabeth, NJ 07202-3625
- **Phone:** (908) 994-5738
## 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:** 7 organizations under Medicare reassignment (form CMS-855R): Barnabas Health Medical Group PC (NPI 1841557246, Elizabeth, NJ); St Josephs Medical Group PC (NPI 1205425519, Paterson, NJ); Signify Health Medical Associates Of New Jersey, LLC (NPI 1174187728, Princeton, NJ); Susquehanna Physician Services (NPI 1881622868, Williamsport, PA); Lutheran Medical Group LLC (NPI 1164662805, Fort Wayne, IN); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Drexel University College Of Medicine, class of 2016
## Record status
- **NPPES last updated:** January 20, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1104276542) · Data from the CMS NPPES public registry.