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Dr. Alyssa Pyun

Vascular Surgery (Vascular Surgery Physician)

1200 N State St, Clinic Tower, Suite A7d
Los Angeles, CA 90033

Who else practices at this address →

Los Angeles County includes primary care (7% of residents) and mental health (13% of residents) shortage areas. About shortage areas

Call (714) 747-9141

  • Medicare participating

At a glance

Years since graduation
9
In the NPI registry since
2017
Medicare patients seen, 2024
124

Licensed in California since 2019, 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

  • 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

  • Vascular Surgery Physician primary
    CA license A162887 (first issued 2019; 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: Vascular Surgery 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
124
Services billed
302
Patients’ average age
71

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, 5 companies reported 28 payments worth $2,353 in total to this clinician.

By type
Food and Beverage$1,953
Travel and Lodging$400

What the payments were for

Largest payments other than meals
DateCompanyWhat it was forAmount
Aug 14, 2025W. L. Gore & Associates, Inc.
Aug 14, 2025
Travel and Lodging
GORE TAG Conformable Thoracic Endoprosthesis · Devices · travel to San Diego, CA · in-kind
$400

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 Vascular Surgery clinicians in Los Angeles

Sources

NPI registry (CMS NPPES, November 2026; record last updated October 10, 2023), 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 1215469945. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.