Physician

Zachary R Williams, M.D.

According to 2025 Medicare claims, Zachary Williams, M.D. (NPI: 1134372584) practices cardiology in the St. George, UT market, with the plurality of this provider's patient population coming from Washington, UT. This provider's primary affiliated billing organization is IHC HEALTH SERVICES INC (NPI: 1477698223; TIN: 942854057) and primary practice location at 84790-2123. Williams is affiliated with the Caravan Health ACO 50 LLC (ACO ID: A5160) and Castell Accountable Care, LLC (ACO ID: D0136), participating under both the MSSP and REACH models.

Williams' data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 2,737 traditional Medicare patients, billed 5,584 HCPCS/CPT codes, and received $225,931 in Medicare payments. The top billing code was 99214 (Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more). Part D data shows 2,125 prescription claims across 440 beneficiaries totaling $413,749 in drug costs, led by Eliquis (Apixaban). 2019 DME data shows 37 claims. Open Payments data shows 7 records totaling $286. 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 sharply higher in recent years, from $48,955 to $413,749. 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	2,257	6,140	$303,584
2016	2,531	5,776	$260,291
2017	2,213	4,974	$231,673
2018	2,254	4,998	$234,753
2019	3,203	6,345	$278,536
2020	3,039	6,510	$246,514
2021	2,728	5,286	$238,153
2022	2,310	3,983	$190,616
2023	2,643	5,190	$229,353
2024	2,737	5,584	$225,931

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	321	1,554	$48,955
2016	234	953	$53,768
2017	207	657	$42,935
2018	216	596	$62,258
2019	239	713	$74,007
2020	301	864	$93,893
2021	454	2,175	$381,277
2022	497	2,549	$453,067
2023	461	2,263	$546,305
2024	440	2,125	$413,749

DME Billing Trend

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

Year	Patients	Claims	Payment
2015	N/R	N/R	N/R
2016	N/R	N/R	N/R
2017	N/R	N/R	N/R
2018	N/R	N/R	N/R
2019	N/R	37	$1,835
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
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	355	419	$83
78431	Nuclear medicine studies of blood flow in heart muscle at rest and with stress with concurrent ct scan	336	336	$62
93306	Ultrasound of heart with color-depicted blood flow, rate, direction and valve function	1,061	1,086	$58
93018	Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician	354	354	$10
93010	Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	601	727	$6

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Eliquis	Apixaban	196	12,542	$235,424
Xarelto	Rivaroxaban	43	3,380	$59,437
Jardiance	Empagliflozin	34	2,320	$43,054
Repatha Sureclick	Evolocumab	18	616	$11,998
Metoprolol Succinate	Metoprolol Succinate	165	14,040	$2,282

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.	7	$286	Neurocrine Biosciences, 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 Zachary R. Williams, M.D.?

Tedicare shows public-source Medicare data for Zachary R. Williams, M.D. (NPI 1134372584), 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 Zachary R. Williams, M.D. have ACO affiliation data?

Zachary R. Williams, M.D. is shown with ACO affiliation data for Caravan Health ACO 50 LLC (MSSP, ACO ID A5160) and Castell Accountable Care, LLC (REACH, ACO ID D0136).

What billing organization is linked to Zachary R. Williams, M.D.?

Zachary R. Williams, M.D. is linked to IHC HEALTH SERVICES INC (billing NPI 1477698223) in the available physician profile data.

Does Zachary R. Williams, M.D. have Open Payments data?

Zachary R. Williams, M.D. has 7 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.