Physician

John Nicasio, DO

According to 2025 Medicare claims, John Nicasio, DO (NPI: 1982803003) practices endocrinology in the Amherst Town-Northampton, MA market, with the plurality of this provider's patient population coming from Hampshire, MA. This provider's primary affiliated billing organization is MASS GENERAL BRIGHAM MEDICAL GROUP WESTERN MASSACHUSETTS INC (NPI: 1295787919; TIN: 043194547) and primary practice location at 01060-4272. Nicasio is affiliated with the Mass General Brigham ACO, LLC (ACO ID: A4641), participating under the MSSP model.

Nicasio's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 627 traditional Medicare patients, billed 16,911 HCPCS/CPT codes, and received $351,103 in Medicare payments. The top billing code was 99204 (New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more). Part D data shows 3,638 prescription claims across 510 beneficiaries totaling $1,648,811 in drug costs, led by Trulicity (Dulaglutide). DME data shows 288 claims. Open Payments data shows 6 records totaling $158. 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 $34,455 to $351,103. In contrast, Part D prescription costs have moved from a higher plateau to a lower plateau, from $1,444,375 to $1,648,811. For DME billing, reported payments rose steadily, from $6,114 to $99,523.

Part B Carrier Billing Trend

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

Year	Patients	Clm Lines	Payment
2015	229	448	$34,455
2016	287	573	$38,103
2017	298	437	$23,587
2018	273	589	$43,310
2019	368	2,969	$116,186
2020	421	5,383	$143,286
2021	514	8,934	$247,000
2022	563	11,014	$266,714
2023	583	12,691	$294,891
2024	627	16,911	$351,103

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	308	4,095	$1,444,375
2016	391	5,777	$2,241,904
2017	419	6,072	$2,438,627
2018	341	1,666	$735,049
2019	230	1,545	$658,001
2020	256	2,103	$887,908
2021	334	2,637	$1,230,256
2022	380	2,830	$1,546,742
2023	450	3,173	$1,757,543
2024	510	3,638	$1,648,811

DME Billing Trend

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

Year	Patients	Claims	Payment
2015	104	211	$5,654
2016	134	308	$11,019
2017	142	423	$25,375
2018	62	159	$7,282
2019	47	167	$13,027
2020	75	277	$32,426
2021	105	346	$42,216
2022	100	392	$46,379
2023	132	510	$74,670
2024	94	288	$93,163

* / # = 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
99204	New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	126	126	$116
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	462	708	$89
J0897	Injection, denosumab, 1 mg	90	9,420	$20
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	447	645	$12
96372	Injection of drug or substance under skin or into muscle	98	184	$10

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Trulicity	Dulaglutide	216	12,076	$403,611
Ozempic	Semaglutide	203	10,370	$346,534
Jardiance	Empagliflozin	216	15,481	$292,078
Tresiba Flextouch U-100	Insulin Degludec	112	7,444	$103,847
Mounjaro	Tirzepatide	37	1,148	$42,484

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
A4239	Supply allowance for non-adjunctive, non-implanted continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service	N	45	172	$87,265
E0784	External ambulatory infusion pump, insulin	Y	N/R	14	$4,340
A4253	Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips	N	36	79	$1,513
A4259	Lancets, per box of 100	N	13	23	$45

Open Payments Summary in 2024

Category	Definition	Records	Total Reported Amount	Top Related Entity
General Payments	Reported payment or transfer-of-value amount.	6	$158	Dexcom, 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 John Nicasio, DO?

Tedicare shows public-source Medicare data for John Nicasio, DO (NPI 1982803003), 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 John Nicasio, DO have ACO affiliation data?

John Nicasio, DO is shown with ACO affiliation data for Mass General Brigham ACO, LLC (MSSP, ACO ID A4641).

What billing organization is linked to John Nicasio, DO?

John Nicasio, DO is linked to MASS GENERAL BRIGHAM MEDICAL GROUP WESTERN MASSACHUSETTS INC (billing NPI 1295787919) in the available physician profile data.

Does John Nicasio, DO have Open Payments data?

John Nicasio, DO has 6 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.