Physician

William David Karczewski, M.D.

According to 2025 Medicare claims, William Karczewski, M.D. (NPI: 1275896490) practices diagnostic radiology in the Traverse City, MI market, with the plurality of this provider's patient population coming from Grand Traverse, MI. This provider's primary affiliated billing organization is GRAND TRAVERSE RADIOLOGISTS PC (NPI: 1760404891; TIN: 381876299) and primary practice location at 49685-9642.

Karczewski's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 2,906 traditional Medicare patients, billed 4,250 HCPCS/CPT codes, and received $133,872 in Medicare payments. The top billing code was 72197 (Mri scan of pelvis before and after contrast). Open Payments data shows 1 records totaling $222. 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 moved up and down with repeated peaks and valleys, starting at $33,995 and ending at $133,872. Concurrently, this provider has fewer than 5 years of reported Part D prescription costs data, so a reliable trend cannot be assigned. 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	N/R	N/R	N/R
2016	N/R	N/R	N/R
2017	513	646	$33,995
2018	2,724	3,585	$116,627
2019	4,615	6,506	$184,520
2020	3,274	4,524	$133,143
2021	3,205	4,748	$165,473
2022	3,232	5,188	$163,893
2023	3,284	4,748	$160,738
2024	2,906	4,250	$133,872

Part D Events Trend

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

No connected Part D records

DME Billing Trend

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

No connected DME records

* / # = 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
72197	Mri scan of pelvis before and after contrast	182	183	$71
74177	Ct scan of abdomen and pelvis with contrast	259	263	$57
77067	Screening mammography	412	412	$34
77063	Screening 3d breast mammography	411	411	$27
71045	X-ray of chest, 1 view	479	505	$6

Top 5 Part D drugs in 2024

By total drug costs.

No connected Part D drug-level records for 2024.

Top 5 DME services in 2024

No connected or detailed DME service-level records for 2024.

Open Payments Summary in 2024

Category	Definition	Records	Total Reported Amount	Top Related Entity
General Payments	Reported payment or transfer-of-value amount.	1	$222	Siemens Medical Solutions USA, 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 William David Karczewski, M.D.?

Tedicare shows public-source Medicare data for William David Karczewski, M.D. (NPI 1275896490), 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 William David Karczewski, M.D. have ACO affiliation data?

No ACO affiliation record is shown in the available Tedicare data for this profile.

What billing organization is linked to William David Karczewski, M.D.?

William David Karczewski, M.D. is linked to GRAND TRAVERSE RADIOLOGISTS PC (billing NPI 1760404891) in the available physician profile data.

Does William David Karczewski, M.D. have Open Payments data?

William David Karczewski, M.D. has 1 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.