DR. GREGORY WEIDNER DO
NPI 1871021766
Emergency Medicine in Hackensack, NJ
About Dr. Gregory Weidner Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GREGORY WEIDNER DO (NPI 1871021766) is an individual emergency medicine provider in Hackensack, New Jersey, licensed in New York (304513) and active in the NPI registry since May 2017. He is enrolled in Medicare PECOS, is affiliated with Valley Hospital, and maintains a secondary practice location in Bronx.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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. Gregory Weidner Do 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
8Medicare enrollment records show Gregory Weidner reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Paramus, NJ 07652
- Reassigned Medicare billing, New Jersey enrollment
- 78 clinicians in this Medicare group
Secaucus, NJ 07094
- Reassigned Medicare billing, New Jersey enrollment
- 74 clinicians in this Medicare group
North Bergen, NJ 07047
- Reassigned Medicare billing, New Jersey enrollment
- 464 clinicians in this Medicare group
New York, NY 10025
- Reassigned Medicare billing, New York enrollment
- 5,251 clinicians in this Medicare group
Hoboken, NJ 07030
- Reassigned Medicare billing, New Jersey enrollment
- 113 clinicians in this Medicare group
Brooklyn, NY 11205
- Reassigned Medicare billing, New Jersey and New York enrollments
- 11 clinicians in this Medicare group
Bayonne, NJ 07002
- Reassigned Medicare billing, New Jersey enrollment
- 637 clinicians in this Medicare group
Poughkeepsie, NY 12601
- Reassigned Medicare billing, New York enrollment
- 235 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 14
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Valley Hospital
Acute Care Hospitals · Paramus, NJPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 07601 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.
HACKENSACK, NJ 07601
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 Gregory Weidner's NPI number?
The NPI number for Gregory Weidner is 1871021766. It was assigned to this individual provider in the NPPES registry on May 23, 2017.
Where is Gregory Weidner located?
Gregory Weidner practices at 30 Prospect Ave, Hackensack, NJ 07601. The listed phone number is (551) 996-2000.
What is Gregory Weidner's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Gregory Weidner enrolled in Medicare?
Yes. Gregory Weidner 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 Gregory Weidner's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Weidner reassigns Medicare benefits to 8 organizations: Valley Emergency Assoc PA (Paramus, NJ), Stadium Emergency Associates (Secaucus, NJ), Parkway Anesthesia Associates LLC (North Bergen, NJ), Montefiore Medical Center (New York, NY), Ihpnj ER LLC (Hoboken, NJ) and 3 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 Gregory Weidner's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Gregory Weidner affiliated with any hospitals?
According to CMS data, Gregory Weidner is affiliated with Valley Hospital.
When was this NPI record last updated?
The NPPES record for Gregory Weidner was last updated on June 18, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.