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Dr. Gregory Weidner, DO

Emergency Medicine (Emergency Medicine Physician)

  • Medicare participating

At a glance

Years since graduation
6
In the NPI registry since
2017
Medicare patients seen, 2024
1,125

The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. What an NPI is

Education and training

  • 2017Registered with an NPI (national billing number; not a license date)

Medicare’s Care Compare data doesn’t list this clinician’s medical school. Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).

Specialties and state licenses

  • Emergency Medicine Physician primary
    NY license 304513

As reported to the NPI registry. To confirm a license is current, check the state medical board.

Map: Emergency Medicine per capita by county →

Where they work

Hospitals

Medical groups

Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.

Medicare patients and services

Medicare patients, 2024
1,125
Services billed
1,911
Patients’ average age
77
Most frequent Medicare services, 2023
ServiceTimesPatients
Emergency department visit with high level of medical decision making316309
Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19)175135
Emergency department visit with moderate level of medical decision making144142
Established patient office or other outpatient visit, 20-29 minutes14191
New patient office or other outpatient visit, 30-44 minutes104104
Established patient office or other outpatient visit, 30-39 minutes9672
Critical care, first 30-74 minutes9089
Detection test by immunoassay with direct visual observation for influenza virus8139
New patient office or other outpatient visit, 45-59 minutes7474
Emergency department visit with low level of medical decision making3736

Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.

Medicare prescriptions

Most prescribed drugs, Medicare Part D 2024
DrugPrescriptions
Ondansetron Odt (ondansetron)
Other prescribers in Hackensack, NJ
21
Cefpodoxime Proxetil15
Cephalexin
Other prescribers in Hackensack, NJ
11

Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.

Other Emergency Medicine clinicians in Hackensack

Sources

NPI registry (CMS NPPES, November 2026; record last updated June 18, 2020), Medicare Care Compare, Medicare Physician & Other Practitioners (2024), Medicare Part D Prescribers (2024) and Open Payments (2025). Information is self-reported or billed data and may be out of date; call before visiting.

NPI 1871021766. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.