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Dr. Patrick Halliday, MD

Anesthesiology (Anesthesiology Physician)

700 Lawrence Expy
Santa Clara, CA 95051

Who else practices at this address →

Santa Clara County includes mental health (13% of residents) shortage areas. About shortage areas

Call (408) 851-1000

At a glance

Years since graduation
6
In the NPI registry since
2020

Licensed in California since 2024, according to the Medical Board of California. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.

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

  • 2020Medical school: University of California, San Francisco School of Medicine
  • 2020Registered with an NPI (national billing number; not a license date)

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

  • Anesthesiology Physician primary
    CA license A197179 (first issued 2024; current)

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

Map: Anesthesiology per capita by county →

Where they work

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.

Other Anesthesiology clinicians in Santa Clara

Sources

NPI registry (CMS NPPES, November 2026; record last updated October 12, 2025), 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 Information is self-reported or billed data and may be out of date; call before visiting.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 1659908242. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.