Physician

Alan Tseng, MD

Hematology Amherst Town-Northampton, MA Mass General Brigham Medical Group Western Massachusetts Inc

According to 2025 Medicare claims, Alan Tseng, MD (NPI: 1518420520) practices hematology in the Amherst Town-Northampton, MA market, with the plurality of this provider's patient population coming from Hampshire, MA. This provider's primary affiliated billing organization is Mass General Brigham Medical Group Western Massachusetts Inc (NPI: 1295787919; TIN: ).

Tseng's data goes back to 2012 and runs through 2026. Part D data shows 161 prescription claims across 30 beneficiaries totaling $513,705 in drug costs. Open Payments data shows 14 records totaling $882.

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10-Year Trend of Part B billing

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

No connected records

10-Year Trend of Part D records

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

Year	Patients	Claims	Drug Cost
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	59	$4,522
2021	17	85	$8,702
2022	24	148	$30,003
2023	30	161	$513,705

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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