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Danielle R. Hahn, NP

Nurse Practitioners (Adult Health Nurse Practitioner)

At a glance

In the NPI registry since
2018

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

  • 2018Registered 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

  • Adult Health Nurse Practitioner primary
    NY license F308612-1

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

Map: Nurse Practitioners per capita by county →

Medicare patients and services

Most frequent Medicare services, 2023
ServiceTimesPatients
Critical care, first 30-74 minutes6923

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
Oxycodone Hcl
Other prescribers in Buffalo, NY
21
Amoxicillin-Clavulanate Potass (amoxicillin/potassium clav)
Other prescribers in Buffalo, NY
17

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

Other Nurse Practitioners clinicians in Buffalo

Sources

NPI registry (CMS NPPES, November 2026; record last updated August 7, 2019), 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 Information is self-reported or billed data and may be out of date; call before visiting.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 1629574587. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.