Physician

Sherwin S. Foster, M.D.

According to 2025 Medicare claims, Sherwin Foster, M.D. (NPI: 1720074990) practices nephrology in the Coeur d'Alene, ID market, with the plurality of this provider's patient population coming from Kootenai, ID. This provider's primary affiliated billing organization is NORTH IDAHO NEPHROLOGY ASSOCIATES, INC. (NPI: 1912181090; TIN: 260661286) and primary practice location at 83854-7787. Foster is affiliated with the Kootenai Accountable Care, LLC (ACO ID: A3621) and Caravan Health ACO 50 LLC (ACO ID: A5160), participating under the MSSP model.

Foster's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 530 traditional Medicare patients, billed 5,058 HCPCS/CPT codes, and received $341,093 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 94 prescription claims across 34 beneficiaries totaling $4,413 in drug costs, led by Atorvastatin Calcium (Atorvastatin Calcium). DME data shows 286 claims. No Open Payments records. 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 started with an early spike, then settled into a lower baseline, moving from $176,469 to $4,413. For DME billing, reported payments moved sharply higher in recent years, from $24,197 to $69,589.

Part B Carrier Billing Trend

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

Year	Patients	Clm Lines	Payment
2015	631	5,468	$332,225
2016	664	5,100	$308,396
2017	685	5,319	$325,301
2018	874	6,202	$370,992
2019	1,107	7,143	$457,114
2020	974	6,577	$415,965
2021	636	5,908	$366,223
2022	537	5,959	$362,359
2023	535	5,448	$356,876
2024	530	5,058	$341,093

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	265	2,802	$176,469
2016	208	1,884	$112,838
2017	214	1,264	$86,723
2018	189	1,024	$71,133
2019	118	549	$34,757
2020	85	422	$27,604
2021	94	524	$31,179
2022	121	673	$41,115
2023	36	138	$11,467
2024	34	94	$4,413

DME Billing Trend

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

Year	Patients	Claims	Payment
2015	75	312	$26,370
2016	17	185	$6,955
2017	27	337	$10,140
2018	101	409	$19,831
2019	N/R	140	$18,807
2020	N/R	65	$855
2021	N/R	117	$3,797
2022	56	366	$17,412
2023	100	365	$15,226
2024	104	286	$35,992

* / # = 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	275	306	$131
99222	Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	201	226	$98
99233	Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	87	228	$90
99239	Hospital discharge day management, more than 30 minutes	114	123	$87
99232	Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	494	4,155	$59

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Atorvastatin Calcium	Atorvastatin Calcium	12	713	$326

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
K0005	Ultralightweight wheelchair	N	12	12	$23,255
E1390	Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate	Y	N/R	43	$2,981
E0973	Wheelchair accessory, adjustable height, detachable armrest, complete assembly, each	N	12	12	$2,481
E0971	Manual wheelchair accessory, anti-tipping device, each	N	20	20	$1,594
K0001	Standard wheelchair	Y	13	47	$1,118

Open Payments Summary

No connected Open Payments records were found for this physician in General Payments, Research Payments, or Ownership / Investment Interests.

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FAQ

What Medicare data is available for Sherwin S. Foster, M.D.?

Tedicare shows public-source Medicare data for Sherwin S. Foster, M.D. (NPI 1720074990), 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 Sherwin S. Foster, M.D. have ACO affiliation data?

Sherwin S. Foster, M.D. is shown with ACO affiliation data for Kootenai Accountable Care, LLC (MSSP, ACO ID A3621) and Caravan Health ACO 50 LLC (MSSP, ACO ID A5160).

What billing organization is linked to Sherwin S. Foster, M.D.?

Sherwin S. Foster, M.D. is linked to NORTH IDAHO NEPHROLOGY ASSOCIATES, INC. (billing NPI 1912181090) in the available physician profile data.

Does Sherwin S. Foster, M.D. have Open Payments data?

No connected Open Payments records are shown for this physician in the available General Payments, Research Payments, or Ownership / Investment Interests 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.