Physician

Bassim Assioun, M.D.

According to 2025 Medicare claims, Bassim Assioun, M.D. (NPI: 1669785408) practices nephrology in the St. Louis, MO-IL market, with the plurality of this provider's patient population coming from St. Clair, IL. This provider's primary affiliated billing organization is HSHS MEDICAL GROUP INC (NPI: 1962644807; TIN: 263956318) and primary practice location at 62220-1915. Assioun is affiliated with the IRCCO (ACO ID: A2619), HSHS ACO, L.L.C. (ACO ID: A2783), SSM IL ACO, LLC (ACO ID: A4832), and IHCI ACO Midwest LLC (ACO ID: A5516), participating under the MSSP model.

Assioun's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 711 traditional Medicare patients, billed 2,875 HCPCS/CPT codes, and received $258,645 in Medicare payments. The top billing code was 99204 (New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more). Part D data shows 3,017 prescription claims across 521 beneficiaries totaling $402,197 in drug costs, led by Farxiga (Dapagliflozin Propanediol). DME data shows 44 claims. Open Payments data shows 3 records totaling $239. 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 did not follow a clear longitudinal pattern. Concurrently, Part D prescription costs have moved sharply higher in recent years, from $13,133 to $402,197. 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	154	472	$36,674
2016	482	2,227	$175,084
2017	609	2,753	$220,751
2018	754	3,644	$308,965
2019	789	4,022	$355,888
2020	865	3,726	$349,527
2021	811	3,059	$318,819
2022	779	2,907	$309,063
2023	711	2,534	$261,004
2024	711	2,875	$258,645

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	31	79	$13,133
2016	128	923	$116,404
2017	213	1,681	$153,255
2018	317	2,297	$182,216
2019	378	2,703	$239,627
2020	418	2,703	$339,561
2021	463	2,879	$202,452
2022	495	3,292	$327,083
2023	487	3,101	$433,282
2024	521	3,017	$402,197

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	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	35	$4,526
2021	N/R	11	$3,473
2022	N/R	65	$3,801
2023	N/R	66	$2,233
2024	N/R	44	$1,233

* / # = 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
99204	New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	110	110	$122
99222	Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	160	206	$108
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	289	376	$93
99232	Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	261	1,101	$65
G2211	Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's	251	301	$13

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Farxiga	Dapagliflozin Propanediol	143	9,100	$171,230
Jardiance	Empagliflozin	61	3,798	$76,142
Velphoro	Sucroferric Oxyhydroxide	12	420	$36,075
Lokelma	Sodium Zirconium Cyclosilicate	18	538	$14,752
Sevelamer Carbonate	Sevelamer Carbonate	44	2,392	$9,830

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
J7518	Mycophenolic acid, oral, 180 mg	N	N/R	18	$875
Q0511	Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period	N	N/R	11	$207
Q0512	Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for a subsequent prescription in a 30-day period	N	N/R	15	$150

Open Payments Summary in 2024

Category	Definition	Records	Total Reported Amount	Top Related Entity
General Payments	Reported payment or transfer-of-value amount.	3	$239	Novo Nordisk 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

Explore More Providers

FAQ

What Medicare data is available for Bassim Assioun, M.D.?

Tedicare shows public-source Medicare data for Bassim Assioun, M.D. (NPI 1669785408), 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 Bassim Assioun, M.D. have ACO affiliation data?

Bassim Assioun, M.D. is shown with ACO affiliation data for IRCCO (MSSP, ACO ID A2619), HSHS ACO, L.L.C. (MSSP, ACO ID A2783), SSM IL ACO, LLC (MSSP, ACO ID A4832), and IHCI ACO Midwest LLC (MSSP, ACO ID A5516).

What billing organization is linked to Bassim Assioun, M.D.?

Bassim Assioun, M.D. is linked to HSHS MEDICAL GROUP INC (billing NPI 1962644807) in the available physician profile data.

Does Bassim Assioun, M.D. have Open Payments data?

Bassim Assioun, M.D. has 3 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.