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Dr. Robert K. Weiser, M.D.

Vascular Surgery (Vascular Surgery Physician)

  • Medicare participating

At a glance

Years since graduation
49
In the NPI registry since
2006
Medicare patients seen, 2024
515

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. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is

Education and training

  • 1977Medical school: Albert Einstein College of Medicine of Yeshiva University
  • 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier

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

  • Vascular Surgery Physician primary
    NY license 134873

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

Map: Vascular Surgery per capita by county →

Where they work

Hospitals

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
515
Services billed
3,269
Patients’ average age
78
Most frequent Medicare services, 2023
ServiceTimesPatients
Established patient office or other outpatient visit, 20-29 minutes1,222468
Ultrasound of leg arteries or artery grafts735454
Removal of skin and tissue, 20.0 sq cm or less67042
Ultrasound study of arm or leg veins with compression and maneuvers497334
Ultrasound of both sides of head and neck blood flow270213
Established patient office or other outpatient visit, 30-39 minutes176141
New patient office or other outpatient visit, 30-44 minutes9292
Complete ultrasound study of arm and leg arteries5744
New patient office or other outpatient visit, 45-59 minutes3333

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

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

Other Vascular Surgery clinicians in Brooklyn

Sources

NPI registry (CMS NPPES, November 2026; record last updated February 3, 2010), 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 1306878608. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.