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Dr. Barrett J. Larson, MD

Anesthesiology (Anesthesiology Physician)

300 Pasteur Dr
Stanford, CA 94305

Who else practices at this address →

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

Call (650) 723-4000

  • Medicare participating

At a glance

Years since graduation
15
In the NPI registry since
2011
Medicare patients seen, 2024
31

Licensed in California since 2012, 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

  • 2011Medical school: Stanford University School of Medicine
  • 2011Registered 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 A122665 (first issued 2012; current)
  • Student in an Organized Health Care Education/Training Program

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.

Medicare patients and services

Medicare patients, 2024
31
Services billed
32
Patients’ average age
72
Most frequent Medicare services, 2023
ServiceTimesPatients
Anesthesia for other procedure on forearm, wrist, or hand bones1514

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.

Payments from drug and device companies

In 2025, 2 companies reported 2 payments worth $50,104 in total to this clinician.

By company
Smith+nephew, Inc.$49,998
Saluda Medical Americas, Inc.$106
By type
Royalty or License$49,998
Food and Beverage$106

What the payments were for

Largest payments other than meals
DateCompanyWhat it was forAmount
Oct 22, 2025Smith+nephew, Inc.
Oct 22, 2025
Royalty or License$49,998

Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.

From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.

Who received the most in California →

Other Anesthesiology clinicians in Stanford

Sources

NPI registry (CMS NPPES, November 2026; record last updated April 11, 2024), 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 1467744276. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.