KAREN A. ONUFER M.D.
NPI 1609891837
Emergency Medicine in Newark, NJ
About Karen A. Onufer M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KAREN A. ONUFER M.D. (NPI 1609891837) is an individual emergency medicine provider in Newark, New Jersey, licensed in New Jersey (25MA06817300) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
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 (PECOS)
Karen A. Onufer M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
5Medicare enrollment records show Karen Onufer reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Newark, NJ 07103
- Reassigned Medicare billing, New Jersey enrollment
- 173 clinicians in this Medicare group
Summit, NJ 07901
- Reassigned Medicare billing, New Jersey enrollment
- 436 clinicians in this Medicare group
Upper Saddle River, NJ 07458
- Reassigned Medicare billing, New Jersey enrollment
- 48 clinicians in this Medicare group
Mount Holly, NJ 08060
- Reassigned Medicare billing, New Jersey enrollment
- 248 clinicians in this Medicare group
Voorhees, NJ 08043
- Reassigned Medicare billing, New Jersey enrollment
- 332 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
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 07103 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.
NEWARK, NJ 07103
NEWARK, NJ 07103
NEWARK, NJ 07103
NEWARK, NJ 07103
NEWARK, NJ 07103
NEWARK, NJ 07103
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 Karen Onufer's NPI number?
The NPI number for Karen Onufer is 1609891837. It was assigned to this individual provider in the NPPES registry on July 12, 2006.
Where is Karen Onufer located?
Karen Onufer practices at 150 Bergen St Emergency Department, Newark, NJ 07103. The listed phone number is (973) 972-5123.
What is Karen Onufer's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Karen Onufer enrolled in Medicare?
Yes. Karen Onufer is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Karen Onufer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karen Onufer reassigns Medicare benefits to 5 organizations: University Physician Associates Of New Jersey Inc (Newark, NJ), Emergency Physician Associates Of North Jersey P C (Summit, NJ), Dispatch Health Medical PC (Upper Saddle River, NJ), Emergency Physician Services Of New Jersey,professional Association (Mount Holly, NJ) and Emergency Physician Associates Of South Jersey P C (Voorhees, 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 Karen Onufer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Karen Onufer accept?
Health plans from Blue Cross and Blue Shield of Oklahoma list Karen Onufer 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 Karen Onufer was last updated on August 21, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.
# Karen A. Onufer, M.D. · NPI 1609891837
Emergency Medicine physician in Newark, New Jersey. Individual provider, active in the CMS NPPES registry since July 12, 2006.
## Identity
- **NPI:** 1609891837 (Entity type: Individual)
- **Enumerated:** July 12, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 25MA06817300 (New Jersey)
- **Sole proprietor:** No
## Practice location
- **Address:** 150 BERGEN ST, EMERGENCY DEPARTMENT, Newark, NJ 07103-2496
- **Phone:** (973) 972-5123 · **Fax:** (973) 972-2204
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): University Physician Associates Of New Jersey Inc (NPI 1760492367, Newark, NJ); Emergency Physician Associates Of North Jersey P C (NPI 1497783419, Summit, NJ); Dispatch Health Medical PC (NPI 1447716873, Upper Saddle River, NJ); Emergency Physician Services Of New Jersey,professional Association (NPI 1831539568, Mount Holly, NJ); Emergency Physician Associates Of South Jersey P C (NPI 1215965231, Voorhees, NJ) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 21, 2009
- **Other identifiers:** Medicare UPIN H36957; Medicaid 8515701 (NJ); Medicare PIN 047794 (NJ)
---
Source: [NPI Profile](https://npiprofile.com/npi/1609891837) · Data from the CMS NPPES public registry.