ELLEN J ROSEN MD
NPI 1891895959
Internal Medicine - Gastroenterology in Morristown, NJ
About Ellen J Rosen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ELLEN J ROSEN MD (NPI 1891895959) is an individual gastroenterology provider in Morristown, New Jersey, licensed in New Jersey (MA07093400) and active in the NPI registry since September 2006. She is enrolled in Medicare PECOS, is affiliated with Morristown Medical Center, and is a graduate of Columbia University College Of Physicians And Surgeons (1993).
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 and accepts Medicare assignment
Ellen J Rosen 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
2Medicare enrollment records show Ellen Rosen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
West Orange, NJ 07052
- Reassigned Medicare billing, New Jersey enrollment
- 32 clinicians in this Medicare group
West Orange, NJ 07052
- Reassigned Medicare billing, New Jersey enrollment
- 757 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 8
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Morristown Medical Center
Acute Care Hospitals · Morristown, 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 07960 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
MORRISTOWN, NJ 07960
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 Ellen Rosen's NPI number?
The NPI number for Ellen Rosen is 1891895959. It was assigned to this individual provider in the NPPES registry on September 25, 2006.
Where is Ellen Rosen located?
Ellen Rosen practices at 101 Madison Ave, Morristown, NJ 07960. The listed phone number is (973) 455-0404.
What is Ellen Rosen's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Ellen Rosen enrolled in Medicare?
Yes. Ellen Rosen 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 Ellen Rosen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ellen Rosen reassigns Medicare benefits to 2 organizations: Barnabas Health Multispecialty (West Orange, NJ) and Barnabas Health Medical Group, PC (West Orange, 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 Ellen Rosen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ellen Rosen accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and Oscar Health list Ellen Rosen 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 Ellen Rosen affiliated with any hospitals?
According to CMS data, Ellen Rosen is affiliated with Morristown Medical Center, Cooperman Barnabas Medical Center and Hackettstown Medical Center.
When was this NPI record last updated?
The NPPES record for Ellen Rosen was last updated on September 26, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Ellen J Rosen, MD · NPI 1891895959
Gastroenterology physician in Morristown, New Jersey. Individual provider, active in the CMS NPPES registry since September 25, 2006.
## Identity
- **NPI:** 1891895959 (Entity type: Individual)
- **Enumerated:** September 25, 2006
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** MA07093400 (New Jersey)
- **Sole proprietor:** No
## Practice location
- **Address:** 101 MADISON AVE, Morristown, NJ 07960-7357
- **Phone:** (973) 455-0404
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Barnabas Health Multispecialty (NPI 1538597745, West Orange, NJ); Barnabas Health Medical Group, PC (NPI 1447206420, West Orange, NJ) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Columbia University College Of Physicians And Surgeons, class of 1993
## Record status
- **NPPES last updated:** September 26, 2007
- **Other identifiers:** Medicare PIN 038488BQS (NJ); Medicare UPIN G80016 (NJ); Medicaid 8261407 (NJ)
---
Source: [NPI Profile](https://npiprofile.com/npi/1891895959) · Data from the CMS NPPES public registry.