Physician

Alex Tan Villacastin, MD

Internal medicine Homosassa Springs, FL West Florida Medical Associates, PA

According to 2025 Medicare claims, Alex Tan Villacastin, MD (NPI: 1194827097) practices internal medicine in the Homosassa Springs, FL market, with the plurality of this provider's patient population coming from Citrus, FL. This provider's primary affiliated billing organization is West Florida Medical Associates, PA (NPI: 1417340654; TIN: ).

Villacastin's data goes back to 2012 and runs through 2026. For example, in 2023, this provider had 1,429 traditional Medicare patients, billed 5,602 HCPCS/CPT codes, and received $300,143 in Medicare payments. Part D data shows 40,746 prescription claims across 3,032 beneficiaries totaling $3,940,335 in drug costs, and DME data shows 833 claims. Open Payments data shows 125 records totaling $2,807.

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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	1,362	4,713	$176,041
2015	1,573	5,330	$271,524
2016	1,347	4,545	$150,762
2017	1,306	4,841	$156,250
2018	1,520	6,355	$250,354
2019	1,549	6,108	$246,755
2020	1,482	5,148	$212,962
2021	1,702	6,042	$295,789
2022	1,524	5,639	$277,569
2023	1,429	5,602	$300,143

10-Year Trend of Part D records

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

Year	Patients	Claims	Drug Cost
2014	1,983	34,211	$2,326,462
2015	2,191	36,968	$2,652,584
2016	2,375	41,281	$2,885,560
2017	2,498	42,936	$3,067,801
2018	2,675	42,455	$3,168,645
2019	3,014	45,846	$3,677,483
2020	2,981	46,982	$3,972,774
2021	3,093	43,735	$3,881,676
2022	2,862	40,630	$3,767,121
2023	3,032	40,746	$3,940,335

10-Year Trend of DME records

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

Year	Patients	Claims	Medicare Payment
2014	362	1,330	$112,001
2015	349	1,098	$82,492
2016	288	1,076	$63,145
2017	241	1,025	$83,325
2018	290	1,136	$60,932
2019	276	1,243	$90,971
2020	242	899	$64,253
2021	229	976	$77,085
2022	203	805	$75,754
2023	187	833	$111,484

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.

DME	Patients	Claims	Services	Medicare Payment
All DME supplier activity	187	883	17,627	$176,896
Durable medical equipment	166	833	13,463	$111,484
Prosthetics, orthotics, and supplies	30	59	1,464	$65,263
DME drugs	Not reported for this year	23	2,700	$148

DME category summary is shown when item-level DME rows are not connected.

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

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