Physician

Claudia Zacharek, MD

According to 2025 Medicare claims, Claudia Zacharek, MD (NPI: 1275692642) practices nephrology in the Saginaw, MI market, with the plurality of this provider's patient population coming from Saginaw, MI. This provider's primary affiliated billing organization is CLAUDIA ZACHAREK MD PLC (NPI: 1265733307; TIN: 273766071) and primary practice location at 48604-2848. Zacharek is affiliated with the McLaren High Performance Network, LLC (ACO ID: A3317) and Mosaic ACO (ACO ID: A5033), participating under the MSSP model.

Zacharek's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 438 traditional Medicare patients, billed 2,437 HCPCS/CPT codes, and received $268,376 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 4,495 prescription claims across 693 beneficiaries totaling $1,021,811 in drug costs, led by Fabrazyme (Agalsidase Beta). DME data shows 152 claims. Open Payments data shows 14 records totaling $23,678. 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 from a lower plateau to a higher plateau, from $221,825 to $1,021,811. In contrast, DME billing represents a smaller volume and started with an early spike, then settled into a lower baseline, moving from $1,923 to $0.

Part B Carrier Billing Trend

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

Year	Patients	Clm Lines	Payment
2015	784	3,154	$322,314
2016	707	2,619	$255,448
2017	685	3,049	$294,575
2018	599	2,754	$288,598
2019	634	3,101	$333,484
2020	556	3,510	$349,046
2021	596	3,300	$370,910
2022	534	2,963	$330,993
2023	460	2,221	$275,834
2024	438	2,437	$268,376

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	228	1,446	$221,825
2016	285	2,114	$331,923
2017	334	2,389	$366,599
2018	381	2,513	$234,269
2019	401	2,667	$719,818
2020	437	2,963	$927,338
2021	526	3,371	$1,359,110
2022	599	3,931	$1,476,387
2023	641	3,978	$1,708,191
2024	693	4,495	$1,021,811

DME Billing Trend

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

Year	Patients	Claims	Payment
2015	N/R	26	$1,923
2016	N/R	13	$245
2017	N/R	61	$3,058
2018	N/R	163	$9,343
2019	N/R	213	$6,608
2020	N/R	244	$6,962
2021	N/R	188	$3,946
2022	N/R	182	$2,952
2023	N/R	196	$2,776
2024	N/R	152	$2,095

* / # = 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	182	$132
99233	Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	97	467	$90
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	256	454	$89
99213	Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more	84	88	$61
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	177	245	$12

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Fabrazyme	Agalsidase Beta	28	756	$710,652
Ozempic	Semaglutide	19	1,260	$34,658
Lanthanum Carbonate	Lanthanum Carbonate	20	780	$29,445
Jardiance	Empagliflozin	12	780	$15,404
Eliquis	Apixaban	11	900	$11,868

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
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	32	$602
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	45	$564
J7507	Tacrolimus, immediate release, oral, 1 mg	N	N/R	49	$486
J7517	Mycophenolate mofetil, oral, 250 mg	N	N/R	26	$443

Open Payments Summary in 2024

Category	Definition	Records	Total Reported Amount	Top Related Entity
General Payments	Reported payment or transfer-of-value amount.	14	$23,678	GENZYME CORPORATION
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 Claudia Zacharek, MD?

Tedicare shows public-source Medicare data for Claudia Zacharek, MD (NPI 1275692642), 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 Claudia Zacharek, MD have ACO affiliation data?

Claudia Zacharek, MD is shown with ACO affiliation data for McLaren High Performance Network, LLC (MSSP, ACO ID A3317) and Mosaic ACO (MSSP, ACO ID A5033).

What billing organization is linked to Claudia Zacharek, MD?

Claudia Zacharek, MD is linked to CLAUDIA ZACHAREK MD PLC (billing NPI 1265733307) in the available physician profile data.

Does Claudia Zacharek, MD have Open Payments data?

Claudia Zacharek, MD has 14 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.