Physician

James Stim, MD

According to 2025 Medicare claims, James Stim, MD (NPI: 1104827427) practices nephrology in the Rockford, IL market, with the plurality of this provider's patient population coming from Winnebago, IL. This provider's primary affiliated billing organization is RNA OF ROCKFORD, PLLC (NPI: 1336326388; TIN: 26-1497110) and primary practice location at 61107-5089.

Stim's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 792 traditional Medicare patients, billed 4,354 HCPCS/CPT codes, and received $276,872 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 1,686 prescription claims across 376 beneficiaries totaling $131,865 in drug costs, led by Farxiga (Dapagliflozin Propanediol). 2019 DME data shows 27 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 moved up and down with repeated peaks and valleys, starting at $279,269 and ending at $276,872. Concurrently, Part D prescription costs have fallen sharply in recent years, from $401,364 to $131,865. In contrast, DME billing represents a smaller volume and changed little.

Part B Carrier Billing Trend

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

Year	Patients	Clm Lines	Payment
2015	1,005	12,014	$279,269
2016	1,104	10,288	$419,286
2017	1,142	12,393	$278,346
2018	1,039	10,688	$297,483
2019	943	4,923	$308,626
2020	810	3,426	$217,773
2021	961	4,837	$325,669
2022	1,016	4,350	$317,013
2023	881	3,717	$266,146
2024	792	4,354	$276,872

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	340	2,574	$401,364
2016	400	2,805	$397,497
2017	436	3,011	$415,688
2018	405	2,523	$244,565
2019	327	1,772	$181,044
2020	342	1,678	$188,811
2021	351	1,707	$146,763
2022	353	1,610	$108,059
2023	366	1,781	$114,799
2024	376	1,686	$131,865

DME Billing Trend

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

Year	Patients	Claims	Payment
2015	N/R	104	$11,923
2016	N/R	158	$20,071
2017	N/R	125	$13,226
2018	N/R	34	$602
2019	N/R	27	$420
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
99223	Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	114	120	$135
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	386	586	$90
99232	Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	152	296	$62
99490	Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month	109	601	$50
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	381	513	$12

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Farxiga	Dapagliflozin Propanediol	70	2,490	$47,348
Lokelma	Sodium Zirconium Cyclosilicate	25	749	$16,120
Jardiance	Empagliflozin	16	480	$9,661
Clinolipid	Fat Emulsion/Olive/Soy/Phospho	22	154	$5,075
Calcitriol	Calcitriol	264	19,680	$3,728

Top 5 DME services in 2024

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

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 James Stim, MD?

Tedicare shows public-source Medicare data for James Stim, MD (NPI 1104827427), 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 James Stim, MD have ACO affiliation data?

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

What billing organization is linked to James Stim, MD?

James Stim, MD is linked to RNA OF ROCKFORD, PLLC (billing NPI 1336326388) in the available physician profile data.

Does James Stim, MD 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.