Physician

Nicolas W Shammas, M.D.

According to 2025 Medicare claims, Nicolas Shammas, M.D. (NPI: 1922087857) practices cardiology in the Davenport-Moline-Rock Island, IA-IL market, with the plurality of this provider's patient population coming from Scott, IA. This provider's primary affiliated billing organization is CARDIOVASCULAR MEDICINE PLLC (NPI: 1982632907; TIN: 421085919) and primary practice location at 52803-2473. Shammas is affiliated with the IRCCO (ACO ID: A2619), Genesis Accountable Care Organization, LLC. (ACO ID: A4799), and CoreHealth Alliance LLC (ACO ID: A5645), participating under the MSSP model.

Shammas' data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 1,774 traditional Medicare patients, billed 4,850 HCPCS/CPT codes, and received $477,096 in Medicare payments. The top billing code was 93306 (Ultrasound of heart with color-depicted blood flow, rate, direction and valve function). Part D data shows 8,003 prescription claims across 1,026 beneficiaries totaling $1,260,004 in drug costs, led by Eliquis (Apixaban). 2023 DME data shows 12 claims. Open Payments data shows 92 records totaling $474,533. 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 $205,090 to $1,260,004. In contrast, DME billing represents a smaller volume and fell sharply in recent years, from $14,013 to $4,032.

Part B Carrier Billing Trend

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

Year	Patients	Clm Lines	Payment
2015	1,929	5,616	$652,673
2016	1,536	4,912	$570,793
2017	1,480	5,078	$581,989
2018	1,619	5,463	$591,970
2019	1,851	5,670	$590,827
2020	1,620	4,776	$516,038
2021	1,756	5,062	$628,608
2022	1,857	5,119	$602,301
2023	1,759	4,731	$469,698
2024	1,774	4,850	$477,096

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	569	5,342	$205,090
2016	580	5,116	$246,095
2017	623	4,765	$282,962
2018	681	4,710	$300,145
2019	671	4,704	$319,759
2020	623	4,383	$342,024
2021	651	4,334	$456,341
2022	743	4,468	$588,873
2023	836	5,823	$942,771
2024	1,026	8,003	$1,260,004

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	15	$29,397
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	12	$2,399
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
93306	Ultrasound of heart with color-depicted blood flow, rate, direction and valve function	424	427	$94
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	367	461	$79
93970	Ultrasound study of arm or leg veins with compression and maneuvers	274	279	$73
93000	Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report	351	408	$9
93010	Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	288	320	$5

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Eliquis	Apixaban	438	22,802	$435,795
Xarelto	Rivaroxaban	268	17,573	$324,124
Jardiance	Empagliflozin	168	8,259	$158,129
Entresto	Sacubitril/Valsartan	69	3,748	$81,410
Repatha Sureclick	Evolocumab	49	2,188	$43,503

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.	59	$47,695	Bayer Healthcare Pharmaceuticals Inc.
Research Payments	Reported research-related payment or transfer-of-value amount.	33	$426,838	AngioDynamics, Inc.
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 Nicolas W. Shammas, M.D.?

Tedicare shows public-source Medicare data for Nicolas W. Shammas, M.D. (NPI 1922087857), 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 Nicolas W. Shammas, M.D. have ACO affiliation data?

Nicolas W. Shammas, M.D. is shown with ACO affiliation data for IRCCO (MSSP, ACO ID A2619), Genesis Accountable Care Organization, LLC. (MSSP, ACO ID A4799), and CoreHealth Alliance LLC (MSSP, ACO ID A5645).

What billing organization is linked to Nicolas W. Shammas, M.D.?

Nicolas W. Shammas, M.D. is linked to CARDIOVASCULAR MEDICINE PLLC (billing NPI 1982632907) in the available physician profile data.

Does Nicolas W. Shammas, M.D. have Open Payments data?

Nicolas W. Shammas, M.D. has 92 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.