KAREN A WIRTSHAFTER MD
NPI 1184717142
Otolaryngology in Parsippany, NJ
About Karen A Wirtshafter Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KAREN A WIRTSHAFTER MD (NPI 1184717142) is an individual otolaryngology provider in Parsippany, New Jersey, licensed in New Jersey (25MA05585600) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS, is affiliated with Morristown Medical Center, and is a graduate of Other (1986).
NPPES Registry Identity
Specialties & Licenses
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
Karen A Wirtshafter 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 Reassignment
Medicare enrollment records show Karen Wirtshafter reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Tarrytown, NY 10591
- Reassigned Medicare billing, New Jersey enrollment
- 153 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 10
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Morristown Medical Center
Acute Care Hospitals · Morristown, NJSaint Clare's Hospital/ Denville Campus
Acute Care Hospitals · Denville, NJOverlook Medical Center
Acute Care Hospitals · Summit, NJCooperman Barnabas Medical Center
Acute Care Hospitals · Livingston, NJHackettstown Medical Center
Acute Care Hospitals · Hackettstown, NJPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 07054 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.
Referred Medical Equipment & Supplies CMS DME claims 6
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 9
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PARSIPPANY, NJ 07054
PARSIPPANY, NJ 07054
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 Wirtshafter's NPI number?
The NPI number for Karen Wirtshafter is 1184717142. It was assigned to this individual provider in the NPPES registry on October 2, 2006.
Where is Karen Wirtshafter located?
Karen Wirtshafter practices at 900 Lanidex Plz Ste 300, Parsippany, NJ 07054. The listed phone number is (973) 394-1818.
What is Karen Wirtshafter's specialty?
The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.
Is Karen Wirtshafter enrolled in Medicare?
Yes. Karen Wirtshafter 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 organization bills Medicare for Karen Wirtshafter's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karen Wirtshafter reassigns Medicare benefits to Ent And Allergy Associates LLP (Tarrytown, NY). The 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 Wirtshafter's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Karen Wirtshafter accept?
Health plans from Oscar Health list Karen Wirtshafter 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 Karen Wirtshafter affiliated with any hospitals?
According to CMS data, Karen Wirtshafter is affiliated with Morristown Medical Center, Saint Clare's Hospital/ Denville Campus, Overlook Medical Center, Cooperman Barnabas Medical Center and Hackettstown Medical Center.
When was this NPI record last updated?
The NPPES record for Karen Wirtshafter was last updated on January 23, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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 Wirtshafter, MD · NPI 1184717142
Otolaryngology physician in Parsippany, New Jersey. Individual provider, active in the CMS NPPES registry since October 2, 2006.
## Identity
- **NPI:** 1184717142 (Entity type: Individual)
- **Enumerated:** October 2, 2006
- **Primary specialty:** Otolaryngology · taxonomy 207Y00000X
- **State license:** 25MA05585600 (New Jersey)
- **Sole proprietor:** No
## Practice location
- **Address:** 900 LANIDEX PLZ STE 300, Parsippany, NJ 07054-2707
- **Phone:** (973) 394-1818 · **Fax:** (973) 394-1810
## 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:** Ent And Allergy Associates LLP (NPI 1376598326, Tarrytown, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1986
## Record status
- **NPPES last updated:** January 23, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1184717142) · Data from the CMS NPPES public registry.