Physician

A. Thomas Siachos, M.D.

According to 2025 Medicare claims, A. Siachos, M.D. (NPI: 1598757171) practices cardiology in the Greenville-Anderson-Greer, SC market, with the plurality of this provider's patient population coming from Greenville, SC. This provider's primary affiliated billing organization is BON SECOURS MEDICAL GROUP GREENVILLE SPECIALTY CARE LLC (NPI: 1821679580; TIN: 850988160) and primary practice location at 29607-5270. Siachos is affiliated with the Mission Health Partners, LLC (ACO ID: A2591), Hampton Roads Good Help ACO (ACO ID: A3324), and Southeastern Health Partners (ACO ID: A3325), participating under the MSSP model.

Siachos' data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 2,754 traditional Medicare patients, billed 8,916 HCPCS/CPT codes, and received $427,726 in Medicare payments. The top billing code was 93306 (Ultrasound of heart with color-depicted blood flow, rate, direction and valve function). Part D data shows 11,317 prescription claims across 1,316 beneficiaries totaling $1,920,855 in drug costs, led by Eliquis (Apixaban). DME data shows 34 claims. Open Payments data shows 32 records totaling $506. 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's Medicare Part B carrier billing has changed little. Concurrently, Part D prescription costs have moved sharply higher in recent years, from $356,857 to $1,920,855. In contrast, DME billing represents a smaller volume and fell sharply in recent years, from $21,245 to $2,460.

Part B Carrier Billing Trend

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

Year	Patients	Clm Lines	Payment
2015	2,888	9,164	$456,441
2016	2,804	9,122	$505,472
2017	2,208	8,237	$496,661
2018	2,074	8,682	$519,927
2019	2,103	8,405	$506,536
2020	1,956	7,762	$429,080
2021	1,624	7,397	$447,802
2022	2,179	8,002	$437,061
2023	2,700	9,102	$453,419
2024	2,754	8,916	$427,726

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	814	6,259	$356,857
2016	818	7,517	$579,012
2017	860	7,951	$633,357
2018	902	8,481	$729,433
2019	983	8,927	$893,544
2020	1,036	8,979	$1,092,461
2021	1,094	9,181	$1,312,524
2022	1,130	9,417	$1,482,740
2023	1,256	10,249	$1,746,092
2024	1,316	11,317	$1,920,855

DME Billing Trend

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

Year	Patients	Claims	Payment
2015	N/R	N/R	N/R
2016	N/R	68	$36,608
2017	N/R	48	$62,384
2018	N/R	40	$37,801
2019	N/R	14	$27,847
2020	N/R	N/R	N/R
2021	N/R	N/R	N/R
2022	N/R	24	$2,117
2023	N/R	46	$3,431
2024	N/R	34	$2,389

* / # = 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
93306	Ultrasound of heart with color-depicted blood flow, rate, direction and valve function	425	426	$104
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	976	1,829	$86
99232	Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	152	289	$58
93000	Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report	813	1,094	$10
93010	Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	1,266	1,497	$6

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Eliquis	Apixaban	861	47,082	$891,667
Xarelto	Rivaroxaban	204	14,160	$254,546
Repatha Sureclick	Evolocumab	232	9,942	$193,510
Entresto	Sacubitril/Valsartan	145	6,365	$136,856
Jardiance	Empagliflozin	125	5,458	$103,693

Top 5 DME services in 2024

By Total Medicare Payment Amount.

HCPCS Code	HCPCS Description	Supplier Rental Indicator	Total Supplier Beneficiaries	Total Supplier Claims	Total Medicare Payment Amount
E1390	Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate	Y	N/R	22	$1,938
E1392	Portable oxygen concentrator, rental	Y	N/R	12	$451

Open Payments Summary in 2024

Category	Definition	Records	Total Reported Amount	Top Related Entity
General Payments	Reported payment or transfer-of-value amount.	32	$506	Medtronic, Inc.
Research Payments	Reported research-related payment or transfer-of-value amount.	0	$0	N/R
Ownership / Investment Interests	Reported value of ownership or investment interests.	0	$0	N/R

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FAQ

What Medicare data is available for A. Thomas Siachos, M.D.?

Tedicare shows public-source Medicare data for A. Thomas Siachos, M.D. (NPI 1598757171), 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 A. Thomas Siachos, M.D. have ACO affiliation data?

A. Thomas Siachos, M.D. is shown with ACO affiliation data for Mission Health Partners, LLC (MSSP, ACO ID A2591), Hampton Roads Good Help ACO (MSSP, ACO ID A3324), and Southeastern Health Partners (MSSP, ACO ID A3325).

What billing organization is linked to A. Thomas Siachos, M.D.?

A. Thomas Siachos, M.D. is linked to BON SECOURS MEDICAL GROUP GREENVILLE SPECIALTY CARE LLC (billing NPI 1821679580) in the available physician profile data.

Does A. Thomas Siachos, M.D. have Open Payments data?

A. Thomas Siachos, M.D. has 32 connected Open Payments records in the available 2024 summary 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.