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Dr. Nathan J. Robison, MD

Pediatric Hematology & Oncology (Pediatric Hematology & Oncology Physician)

4650 W Sunset Blvd
Los Angeles, CA 90027

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 (323) 361-3550

At a glance

Years since graduation
24
In the NPI registry since
2008

Licensed in California since 2004, 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. 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

  • 2002Medical school: University of Southern California Keck School of Medicine
  • 2008Registered 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

  • Pediatric Hematology & Oncology Physician primary
    MA license 238951 · CA license A86955 (first issued 2004; current)
  • Emergency Medicine Physician
    CA license A86955 (first issued 2004; current)

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

Map: Pediatric Hematology & Oncology 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.

Payments from drug and device companies

In 2025, 2 companies reported 3 payments worth $3,263 in total to this clinician.

By company
Day One Biopharmaceuticals$3,155
Springworks Therapeutics, Inc.$108
By type
Honoraria$3,150
Food and Beverage$113

What the payments were for

Largest payments other than meals
DateCompanyWhat it was forAmount
Dec 17, 2025Day One Biopharmaceuticals
Dec 17, 2025
Honoraria
OJEMDA · ONCOLOGY
$3,150

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 →

Industry-funded research

Named as a principal investigator on 4 industry-funded studies in 2025, from 4 companies. The companies reported $158,135 in research payments for these studies, mostly to the institutions running them.

From CMS Open Payments research payments, where companies name up to five principal investigators per payment. Research payments usually go to hospitals, universities and research sites, not to the investigator personally. A payment is not evidence of wrongdoing.

Other Pediatric Hematology & Oncology clinicians in Los Angeles

Sources

NPI registry (CMS NPPES, November 2026; record last updated March 29, 2017), 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 1235391996. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.