Physician

Alejandro Diez, MD

According to 2025 Medicare claims, Alejandro Diez, MD (NPI: 1669670782) practices nephrology in the Columbus, OH market, with the plurality of this provider's patient population coming from Franklin, OH. This provider's primary affiliated billing organization is OSU INTERNAL MEDICINE, LLC (NPI: 1740231448; TIN: 311369596) and primary practice location at 43210-1240. Diez is affiliated with the Mercy Health Select, LLC (ACO ID: A1215), Main Street Rural Health Sycamore ACO LLC (ACO ID: A5403), and CVS ACO (ACO ID: A5407), participating under the MSSP model.

Diez's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 221 traditional Medicare patients, billed 470 HCPCS/CPT codes, and received $34,585 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 1,220 prescription claims across 179 beneficiaries totaling $256,465 in drug costs, led by Everolimus (Everolimus). DME data shows 1,995 claims. Open Payments data shows 2 records totaling $3,412. 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 fallen sharply in recent years, from $76,847 to $34,585. Similarly, Part D prescription costs have declined steadily, from $357,916 to $256,465. 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	351	962	$76,847
2016	480	1,403	$110,106
2017	451	1,097	$91,120
2018	443	1,099	$89,853
2019	398	1,004	$82,813
2020	410	992	$88,229
2021	311	796	$72,736
2022	250	487	$41,140
2023	249	543	$46,239
2024	221	470	$34,585

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	155	2,388	$357,916
2016	185	2,509	$311,698
2017	186	1,793	$292,155
2018	217	1,451	$264,340
2019	217	1,777	$226,011
2020	227	1,612	$166,869
2021	195	1,231	$281,925
2022	191	857	$150,195
2023	189	1,302	$267,620
2024	179	1,220	$256,465

DME Billing Trend

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

Year	Patients	Claims	Payment
2015	591	3,320	$710,717
2016	494	3,230	$596,448
2017	548	3,752	$774,554
2018	725	4,693	$1,126,951
2019	706	4,357	$829,878
2020	571	3,417	$489,789
2021	455	2,767	$278,339
2022	353	1,694	$109,873
2023	318	2,165	$101,909
2024	317	1,995	$90,592

* / # = 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	40	42	$127
99205	New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	34	34	$124
99215	Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	19	19	$109
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	90	114	$62
99232	Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	69	182	$58

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Everolimus	Everolimus	12	360	$68,044
Lokelma	Sodium Zirconium Cyclosilicate	42	1,326	$46,316
Atovaquone	Atovaquone	24	720	$20,768
Mycophenolic Acid	Mycophenolate Sodium	60	2,714	$14,221
Tacrolimus	Tacrolimus	70	4,058	$9,525

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	35	$31,750
J7518	Mycophenolic acid, oral, 180 mg	N	40	290	$13,901
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	86	498	$9,082
J7527	Everolimus, oral, 0.25 mg	N	N/R	26	$8,429
J7507	Tacrolimus, immediate release, oral, 1 mg	N	62	366	$8,052

Open Payments Summary in 2024

Category	Definition	Records	Total Reported Amount	Top Related Entity
General Payments	Reported payment or transfer-of-value amount.	1	$18	Bayer Healthcare Pharmaceuticals Inc.
Research Payments	Reported research-related payment or transfer-of-value amount.	1	$3,394	Merck Sharp & Dohme LLC
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 Alejandro Diez, MD?

Tedicare shows public-source Medicare data for Alejandro Diez, MD (NPI 1669670782), 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 Alejandro Diez, MD have ACO affiliation data?

Alejandro Diez, MD is shown with ACO affiliation data for Mercy Health Select, LLC (MSSP, ACO ID A1215), Main Street Rural Health Sycamore ACO LLC (MSSP, ACO ID A5403), and CVS ACO (MSSP, ACO ID A5407).

What billing organization is linked to Alejandro Diez, MD?

Alejandro Diez, MD is linked to OSU INTERNAL MEDICINE, LLC (billing NPI 1740231448) in the available physician profile data.

Does Alejandro Diez, MD have Open Payments data?

Alejandro Diez, MD has 2 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.