DR. GEORGE PAUL GEWIRTZ M.DD
NPI 1477516615
Internal Medicine - Endocrinology, Diabetes & Metabolism in Livingston, NJ
About Dr. George Paul Gewirtz M.dd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GEORGE PAUL GEWIRTZ M.DD (NPI 1477516615) is an individual endocrinology, diabetes & metabolism provider in Livingston, New Jersey, licensed in New Jersey (25MA02725400) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. George Paul Gewirtz M.dd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show George Gewirtz reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Livingston, NJ 07039
- Reassigned Medicare billing, New Jersey enrollment
- 3 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 07039 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.
Reported Quality Measures
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.
LIVINGSTON, NJ 07039
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 George Gewirtz's NPI number?
The NPI number for George Gewirtz is 1477516615. It was assigned to this individual provider in the NPPES registry on April 10, 2006.
Where is George Gewirtz located?
George Gewirtz practices at 200 S Orange Ave, Livingston, NJ 07039. The listed phone number is (973) 322-7200.
What is George Gewirtz's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.
Is George Gewirtz enrolled in Medicare?
Yes. George Gewirtz is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for George Gewirtz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), George Gewirtz reassigns Medicare benefits to Endocrine And Diabetes PA (Livingston, NJ). 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 George Gewirtz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for George Gewirtz was last updated on July 28, 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.