Physician

Alexander J. Alonso, M.D.

According to 2025 Medicare claims, Alexander Alonso, M.D. (NPI: 1124152707) practices nephrology in the Peoria, IL market, with the plurality of this provider's patient population coming from Tazewell, IL. This provider's primary affiliated billing organization is RENALCARE ASSOCIATES, S.C. (NPI: 1649300377; TIN: 370995483) and primary practice location at 61603-3168. Alonso is affiliated with the IRCCO (ACO ID: A2619), OSF Healthcare System (ACO ID: A3289), and SBL accountable care organization (ACO ID: A5147), participating under the MSSP model.

Alonso's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 830 traditional Medicare patients, billed 4,576 HCPCS/CPT codes, and received $267,921 in Medicare payments. The top billing code was 99223 (Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes). Part D data shows 3,830 prescription claims across 546 beneficiaries totaling $644,887 in drug costs, led by Jardiance (Empagliflozin). DME data shows 212 claims. 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's Medicare Part B carrier billing has changed little. Concurrently, Part D prescription costs have risen steadily, from $223,882 to $644,887. 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	919	14,157	$243,184
2016	1,044	14,474	$323,945
2017	933	5,038	$284,578
2018	972	4,518	$300,591
2019	1,001	5,288	$310,435
2020	914	3,696	$263,127
2021	824	2,377	$249,288
2022	828	2,209	$230,601
2023	813	2,280	$222,400
2024	830	4,576	$267,921

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	375	3,847	$223,882
2016	352	3,795	$326,326
2017	353	3,486	$350,797
2018	337	3,380	$313,621
2019	346	3,014	$304,531
2020	329	2,769	$329,590
2021	349	2,860	$302,716
2022	387	3,237	$386,857
2023	437	3,500	$542,278
2024	546	3,830	$644,887

DME Billing Trend

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

Year	Patients	Claims	Payment
2015	12	352	$36,697
2016	N/R	297	$24,989
2017	N/R	279	$19,196
2018	N/R	269	$18,151
2019	N/R	300	$33,916
2020	N/R	284	$26,044
2021	N/R	275	$16,785
2022	N/R	213	$9,216
2023	N/R	201	$5,252
2024	N/R	212	$7,695

* / # = 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
99223	Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	115	120	$131
99233	Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	177	488	$91
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	458	739	$66
99232	Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	171	435	$60
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	485	789	$12

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Jardiance	Empagliflozin	534	20,001	$382,886
Velphoro	Sucroferric Oxyhydroxide	28	1,080	$131,892
Farxiga	Dapagliflozin Propanediol	37	1,710	$28,847
Lokelma	Sodium Zirconium Cyclosilicate	15	429	$11,336
Kerendia	Finerenone	14	480	$10,157

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
J7503	Tacrolimus, extended release, (envarsus xr), oral, 0.25 mg	N	N/R	17	$3,481
J7518	Mycophenolic acid, oral, 180 mg	N	N/R	38	$1,506
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	47	$828
J7500	Azathioprine, oral, 50 mg	N	N/R	13	$790
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	61	$715

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 Alexander J. Alonso, M.D.?

Tedicare shows public-source Medicare data for Alexander J. Alonso, M.D. (NPI 1124152707), 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 Alexander J. Alonso, M.D. have ACO affiliation data?

Alexander J. Alonso, M.D. is shown with ACO affiliation data for IRCCO (MSSP, ACO ID A2619), OSF Healthcare System (MSSP, ACO ID A3289), and SBL accountable care organization (MSSP, ACO ID A5147).

What billing organization is linked to Alexander J. Alonso, M.D.?

Alexander J. Alonso, M.D. is linked to RENALCARE ASSOCIATES, S.C. (billing NPI 1649300377) in the available physician profile data.

Does Alexander J. Alonso, M.D. 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.