Physician

Aaron Katsuhiro Hayashi, MD

Diagnostic Radiology Oakland-Fremont-Berkeley, CA Stanford Health Care

According to 2025 Medicare claims, Aaron Katsuhiro Hayashi, MD (NPI: 1336104082) practices diagnostic radiology in the Oakland-Fremont-Berkeley, CA market, with the plurality of this provider's patient population coming from Alameda, CA. This provider's primary affiliated billing organization is Stanford Health Care (NPI: 1437292927; TIN: ).

Hayashi's data goes back to 2012 and runs through 2026. For example, in 2023, this provider had 1,252 traditional Medicare patients, billed 1,806 HCPCS/CPT codes, and received $48,491 in Medicare payments. No Open Payments records.

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10-Year Trend of Part B billing

Medicare payment trend, with patients and services in the table.

Year	Patients	Services	Medicare Payment
2014	Not reported for this year	Not reported for this year	Not reported for this year
2015	Not reported for this year	Not reported for this year	Not reported for this year
2016	Not reported for this year	Not reported for this year	Not reported for this year
2017	Not reported for this year	Not reported for this year	Not reported for this year
2018	Not reported for this year	Not reported for this year	Not reported for this year
2019	Not reported for this year	Not reported for this year	Not reported for this year
2020	Not reported for this year	Not reported for this year	Not reported for this year
2021	Not reported for this year	Not reported for this year	Not reported for this year
2022	Not reported for this year	Not reported for this year	Not reported for this year
2023	1,252	1,806	$48,491

10-Year Trend of Part D records

Prescription claims trend, with patients and drug cost in the table.

No connected records

10-Year Trend of DME records

DME claim records trend, with patients and payment in the table.

No connected records

Top 5 Part B billing codes in 2023

By N of patients.

No connected Part B code-level records for 2023.

Top 5 Part D drugs in 2023

By N of patients.

No connected Part D drug-level records for 2023.

Top 5 DME in 2023

By N of patients.

No connected DME records for 2023.

Physician Data Export

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Part B billing, Part D prescribing, DME records, yearly summaries, source JSON, and source notes.

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