Physician

Charulatha Nagar, M.D.

According to 2025 Medicare claims, Charulatha Nagar, M.D. (NPI: 1104810191) practices neurology in the Lake County, IL market, with the plurality of this provider's patient population coming from Lake, IL. This provider's primary affiliated billing organization is NORTHWESTERN MEDICAL FACULTY FOUNDATION (NPI: 1346235314; TIN: 363097297) and primary practice location at 60045-1601. Nagar is affiliated with the IRCCO (ACO ID: A2619) and Northwestern Medicine Physician Network ACO (ACO ID: A2620), participating under the MSSP model.

Nagar's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 463 traditional Medicare patients, billed 71,370 HCPCS/CPT codes, and received $1,846,519 in Medicare payments. The top billing code was 99205 (New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more). Part D data shows 2,425 prescription claims across 341 beneficiaries totaling $2,554,172 in drug costs, led by Gammaked (Immune Globul G/Gly/Iga Avg 46). Open Payments data shows 135 records totaling $38,895. 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 sharply higher in recent years, from $125,207 to $1,846,519. Similarly, Part D prescription costs have risen steadily, from $733,443 to $2,554,172. 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	385	10,026	$125,207
2016	476	14,656	$172,397
2017	452	20,410	$198,944
2018	492	19,570	$203,671
2019	489	20,551	$219,343
2020	458	19,020	$188,680
2021	484	19,092	$232,422
2022	491	31,424	$757,121
2023	476	49,947	$1,264,734
2024	463	71,370	$1,846,519

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	166	1,342	$733,443
2016	188	1,522	$577,037
2017	219	1,575	$497,946
2018	258	1,801	$777,167
2019	276	1,870	$812,037
2020	265	1,820	$632,875
2021	338	2,102	$874,100
2022	361	2,169	$1,132,105
2023	351	2,172	$1,850,073
2024	341	2,425	$2,554,172

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
99205	New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	80	80	$174
99215	Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	236	358	$148
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	169	232	$99
99443	Telephone medical discussion with physician, 21-30 minutes	30	36	$91
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	347	545	$14

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Gammaked	Immune Globul G/Gly/Iga Avg 46	34	1,064	$498,825
Panzyga	Immun Glob G(Igg)-Ifas/Glycine	19	399	$180,959
Gamunex-C	Immune Globul G/Gly/Iga Avg 46	15	315	$124,486
Avonex (4 Pack)	Interferon Beta-1a	13	364	$106,213
Gammagard Liquid	Immun Glob G(Igg)/Gly/Iga Ov50	25	525	$104,305

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.	135	$38,895	ARGENX US, 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 Charulatha Nagar, M.D.?

Tedicare shows public-source Medicare data for Charulatha Nagar, M.D. (NPI 1104810191), 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 Charulatha Nagar, M.D. have ACO affiliation data?

Charulatha Nagar, M.D. is shown with ACO affiliation data for IRCCO (MSSP, ACO ID A2619) and Northwestern Medicine Physician Network ACO (MSSP, ACO ID A2620).

What billing organization is linked to Charulatha Nagar, M.D.?

Charulatha Nagar, M.D. is linked to NORTHWESTERN MEDICAL FACULTY FOUNDATION (billing NPI 1346235314) in the available physician profile data.

Does Charulatha Nagar, M.D. have Open Payments data?

Charulatha Nagar, M.D. has 135 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.