Physician

Xian F Gu, M.D.

According to 2025 Medicare claims, Xian Gu, M.D. (NPI: 1811935752) practices neurology in the Fond du Lac, WI market, with the plurality of this provider's patient population coming from Fond Du Lac, WI. This provider's primary affiliated billing organization is AGNESIAN HEALTHCARE INC (NPI: 1730162991; TIN: 390807236) and primary practice location at 54935-4560. Gu is affiliated with the THEDACARE ACO (ACO ID: A4988) and SSM WI ACO LLC (ACO ID: A5124), participating under the MSSP model.

Gu's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 461 traditional Medicare patients, billed 1,142 HCPCS/CPT codes, and received $74,631 in Medicare payments. The top billing code was 99215 (Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more). Part D data shows 5,708 prescription claims across 724 beneficiaries totaling $2,083,740 in drug costs, led by Gamunex-C (Immune Globul G/Gly/Iga Avg 46). 2015 DME data shows 12 claims. Open Payments data shows 20 records totaling $438. 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 from a higher plateau to a lower plateau, from $313,898 to $74,631. In contrast, Part D prescription costs have risen steadily, from $1,345,976 to $2,083,740. For DME billing, this smaller-volume category moved up and down with repeated peaks and valleys, starting at $1,240 and ending at $1,581.

Part B Carrier Billing Trend

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

Year	Patients	Clm Lines	Payment
2015	1,029	10,047	$313,898
2016	1,042	10,503	$297,398
2017	824	10,850	$222,821
2018	616	7,654	$159,475
2019	677	9,368	$209,306
2020	526	5,892	$127,658
2021	531	4,651	$127,579
2022	519	5,221	$132,650
2023	471	8,394	$133,458
2024	461	1,142	$74,631

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	534	4,123	$1,345,976
2016	601	3,954	$1,415,805
2017	647	4,398	$1,716,524
2018	552	3,921	$1,564,931
2019	575	3,877	$1,288,051
2020	570	4,321	$1,640,811
2021	598	4,322	$2,015,026
2022	677	5,254	$2,347,068
2023	686	5,494	$2,185,685
2024	724	5,708	$2,083,740

DME Billing Trend

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

Year	Patients	Claims	Payment
2015	N/R	12	$923
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	N/R	N/R
2021	N/R	N/R	N/R
2022	N/R	N/R	N/R
2023	N/R	N/R	N/R
2024	N/R	N/R	N/R

* / # = 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
99215	Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	58	75	$99
99204	New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	74	74	$90
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	214	329	$63
99213	Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more	64	71	$44
95886	Needle measurement of electrical activity in arm or leg muscles, complete study	85	130	$40

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Gamunex-C	Immune Globul G/Gly/Iga Avg 46	51	1,323	$397,745
Privigen	Immun Glob G(Igg)/Pro/Iga 0-50	45	1,214	$366,101
Cuvitru	Immun Glob G(Igg)/Gly/Iga Ov50	14	371	$365,105
Avonex (4 Pack)	Interferon Beta-1a	18	504	$151,413
Glatiramer Acetate	Glatiramer Acetate	42	1,176	$86,610

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.	20	$438	Teva Pharmaceuticals 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

Explore More Providers

FAQ

What Medicare data is available for Xian F. Gu, M.D.?

Tedicare shows public-source Medicare data for Xian F. Gu, M.D. (NPI 1811935752), 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 Xian F. Gu, M.D. have ACO affiliation data?

Xian F. Gu, M.D. is shown with ACO affiliation data for THEDACARE ACO (MSSP, ACO ID A4988) and SSM WI ACO LLC (MSSP, ACO ID A5124).

What billing organization is linked to Xian F. Gu, M.D.?

Xian F. Gu, M.D. is linked to AGNESIAN HEALTHCARE INC (billing NPI 1730162991) in the available physician profile data.

Does Xian F. Gu, M.D. have Open Payments data?

Xian F. Gu, M.D. has 20 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.