Physician

Thomas Ryu Maehara

According to 2025 Medicare claims, Thomas Maehara (NPI: 1629571666) practices emergency medicine in the Longview-Kelso, WA market, with the plurality of this provider's patient population coming from Cowlitz, WA. This provider's primary affiliated billing organization is CEP AMERICA LLC (NPI: 1548920598; TIN: 27-1369141) and primary practice location at 98632-2367.

Maehara's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 316 traditional Medicare patients, billed 597 HCPCS/CPT codes, and received $50,875 in Medicare payments. The top billing code was 99291 (Critical care, first 30-74 minutes). Part D data shows 325 prescription claims across 205 beneficiaries totaling $4,581 in drug costs, led by Cephalexin (Cephalexin). 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 $83 to $4,581. 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.

Year	Patients	Clm Lines	Payment
2015	N/R	N/R	N/R
2016	N/R	N/R	N/R
2017	N/R	N/R	N/R
2018	N/R	N/R	N/R
2019	N/R	N/R	N/R
2020	N/R	N/R	N/R
2021	N/R	N/R	N/R
2022	N/R	N/R	N/R
2023	96	183	$13,667
2024	316	597	$50,875

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	N/R	N/R	N/R
2016	N/R	N/R	N/R
2017	N/R	N/R	N/R
2018	N/R	N/R	N/R
2019	N/R	N/R	N/R
2020	12	15	$83
2021	64	82	$1,399
2022	57	79	$655
2023	91	116	$3,684
2024	205	325	$4,581

DME Billing Trend

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

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.

Code	Description	Patients	Clm Lines	Total Payment
99291	Critical care, first 30-74 minutes	87	93	$163
99285	Emergency department visit with high level of medical decision making	199	212	$128
99284	Emergency department visit with moderate level of medical decision making	33	33	$87
93010	Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	174	207	$6

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Cephalexin	Cephalexin	45	321	$459
Ondansetron Odt	Ondansetron	37	263	$309
Doxycycline Monohydrate	Doxycycline Monohydrate	19	120	$246
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	21	141	$181
Oxycodone Hcl	Oxycodone Hcl	29	57	$98

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.

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FAQ

What Medicare data is available for Thomas Ryu Maehara?

Tedicare shows public-source Medicare data for Thomas Ryu Maehara (NPI 1629571666), 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 Thomas Ryu Maehara have ACO affiliation data?

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

What billing organization is linked to Thomas Ryu Maehara?

Thomas Ryu Maehara is linked to CEP AMERICA LLC (billing NPI 1548920598) in the available physician profile data.

Does Thomas Ryu Maehara 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.