Tedicareby FastHSR

Physician

Aaron Masayuki Tsumura, MD

According to 2025 Medicare claims, Aaron Tsumura, MD (NPI: 1982165213) practices internal medicine in the San Diego-Chula Vista-Carlsbad, CA market, with the plurality of this provider's patient population coming from San Diego, CA. This provider's primary affiliated billing organization is SOUTHERN CALIFORNIA PERMANENTE MEDICAL GROUP (NPI: 1225060742) and primary practice location at 92120-2507.

Tsumura's data goes back to 2015 and runs through 2024. Part D data shows 245 prescription claims across 30 beneficiaries totaling $742,247 in drug costs, led by Sprycel (Dasatinib). No Open Payments records. You can download detailed data with all billing codes (2015-2024). For more recent data, please contact us.

Over the past 10 years, this provider has fewer than 5 years of reported Medicare Part B carrier billing data, so a reliable trend cannot be assigned. Concurrently, Part D prescription costs have moved sharply higher in recent years, from $350 to $742,247. For DME billing, this provider has fewer than 5 years of reported data, so a reliable trend cannot be assigned.

Part B Carrier Billing Trend

Medicare payment trend, with N of patients and claim lines in the table.

No connected Part B records

No connected Part B records

Part D Events Trend

Drug cost trend, with N of patients and prescription claims in the table.

Part D Events Trend. X-axis: year 2015-2024. Y-axis: Drug cost, unit: USD. Field: Tot_Drug_Cst. Source: Medicare Part D Prescribers by Provider.0$371K$742K2019 Drug cost: $350 (USD; Tot_Drug_Cst)2020 Drug cost: $14,112 (USD; Tot_Drug_Cst)2021 Drug cost: $15,640 (USD; Tot_Drug_Cst)2022 Drug cost: $13,503 (USD; Tot_Drug_Cst)2023 Drug cost: $146,181 (USD; Tot_Drug_Cst)2024 Drug cost: $742,247 (USD; Tot_Drug_Cst)2015201620172018201920202021202220232024
YearPatientsClaimsDrug Cost
2015N/RN/RN/R
2016N/RN/RN/R
2017N/RN/RN/R
2018N/RN/RN/R
20191729$350
202048202$14,112
202162330$15,640
202228159$13,503
20232490$146,181
202430245$742,247

DME Billing Trend

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

No connected DME records

No connected DME records

* / # = suppressed by CMS; 0 = reported zero; N/R = not reported or blank.

Top 5 Part B carrier billing codes in 2024

By total payments.

No connected Part B code-level records for 2024.

Top 5 Part D drugs in 2024

By total drug costs.

DrugGenericClaimsTotal Day SupplyTotal Drug Cost
SprycelDasatinib381,140$339,265
ImbruvicaIbrutinib12336$173,062
Abiraterone AcetateAbiraterone Acetate14420$44,965
GabapentinGabapentin16480$276
Cyclobenzaprine HclCyclobenzaprine Hcl13390$238

Top 5 DME services in 2024

No connected or detailed DME service-level records for 2024.

Open Payments Summary

No connected Open Payments records were found for this physician in General Payments, Research Payments, or Ownership / Investment Interests.

FAQ

What Medicare data is available for Aaron Masayuki Tsumura, MD?

Tedicare shows public-source Medicare data for Aaron Masayuki Tsumura, MD (NPI 1982165213), including provider identity, specialty, market context, Medicare Part B activity, Part D prescribing, DME records, Open Payments where available, billing organization details, and ACO affiliation signals where available. Profile data covers 2015-2024, with current attribution based on 2025 claims where available.

Does Aaron Masayuki Tsumura, MD have ACO affiliation data?

No ACO affiliation record is shown in the available Tedicare data for this profile.

What billing organization is linked to Aaron Masayuki Tsumura, MD?

Aaron Masayuki Tsumura, MD is linked to SOUTHERN CALIFORNIA PERMANENTE MEDICAL GROUP (billing NPI 1225060742) in the available physician profile data.

Does Aaron Masayuki Tsumura, MD have Open Payments data?

No connected Open Payments records are shown for this physician in the available General Payments, Research Payments, or Ownership / Investment Interests data.

Can I download physician-level Medicare data from Tedicare?

Yes. Tedicare provides sample physician export data and paid custom physician data exports for research, planning, outreach, and market analysis. Exports can include physician profile fields, market and specialty context, billing organization details, ACO affiliation signals where available, and Medicare utilization data.