Physician

Caroline Sizer, M.D.

According to 2025 Medicare claims, Caroline Sizer, M.D. (NPI: 1932492022) practices physical medicine and rehabilitation in the Boston, MA market, with the plurality of this provider's patient population coming from Plymouth, MA. This provider's primary affiliated billing organization is SOUTH SHORE CENTER FOR TONE MANAGEMENT PLLC (NPI: 1275310872) and primary practice location at 02184-5351. Sizer is affiliated with the Lifespan Health Alliance, LLC (ACO ID: A3336) and Sound Physicians Long Term Care Managment II (ACO ID: A5538), participating under the MSSP model.

Sizer's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 471 traditional Medicare patients, billed 186,084 HCPCS/CPT codes, and received $1,280,208 in Medicare payments. The top billing code was 99306 (Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more). Part D data shows 257 prescription claims across 57 beneficiaries totaling $101,330 in drug costs, led by Botox (Onabotulinumtoxina). DME data shows 83 claims. Open Payments data shows 19 records totaling $8,835. 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 risen steadily, from $29,297 to $1,280,208. Similarly, Part D prescription costs have moved sharply higher in recent years, from $470 to $101,330. In contrast, DME billing represents a smaller volume and fell sharply in recent years, from $1,091 to $17,745.

Part B Carrier Billing Trend

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

Year	Patients	Clm Lines	Payment
2015	N/R	N/R	N/R
2016	93	403	$29,297
2017	250	1,498	$101,171
2018	217	1,056	$64,146
2019	149	13,059	$86,387
2020	107	10,145	$65,983
2021	147	32,627	$200,759
2022	352	58,613	$429,622
2023	482	127,799	$829,707
2024	471	186,084	$1,280,208

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	N/R	14	$470
2016	N/R	11	$73
2017	11	68	$5,557
2018	21	95	$7,383
2019	50	183	$32,179
2020	57	198	$34,667
2021	86	392	$82,251
2022	47	180	$58,812
2023	37	128	$64,266
2024	57	257	$101,330

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	N/R	N/R
2019	12	32	$3,879
2020	N/R	N/R	N/R
2021	N/R	76	$4,803
2022	N/R	N/R	N/R
2023	N/R	N/R	N/R
2024	N/R	83	$5,030

* / # = 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
99306	Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more	105	112	$152
64642	Injection of chemical for paralysis of nerve muscles on arm or leg, 1-4 muscles, first extremity	125	272	$118
64643	Injection of chemical for paralysis of nerve muscles on arm or leg, 1-4 muscles, each additional extremity	95	251	$77
95874	Needle measurement of electrical activity in muscle with injection of chemical for paralysis of nerve muscle	197	493	$68
J0585	Injection, onabotulinumtoxina, 1 unit	196	182,602	$5

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Botox	Onabotulinumtoxina	38	3,420	$88,286
Baclofen	Baclofen	136	6,064	$3,192
Gabapentin	Gabapentin	19	560	$373
Lorazepam	Lorazepam	18	450	$196
Diazepam	Diazepam	24	625	$76

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
E1161	Manual adult size wheelchair, includes tilt in space	Y	N/R	12	$2,468
E1815	Dynamic adjustable ankle extension/flexion device, includes soft interface material	Y	N/R	15	$1,723
E1028	Wheelchair accessory, manual swingaway, retractable or removable mounting hardware for joystick, other control interface or positioning accessory	Y	N/R	22	$343
E0955	Wheelchair accessory, headrest, cushioned, any type, including fixed mounting hardware, each	Y	N/R	22	$335
K0195	Elevating leg rests, pair (for use with capped rental wheelchair base)	Y	N/R	12	$161

Open Payments Summary in 2024

Category	Definition	Records	Total Reported Amount	Top Related Entity
General Payments	Reported payment or transfer-of-value amount.	19	$8,835	ABBVIE 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

Explore More Providers

FAQ

What Medicare data is available for Caroline Sizer, M.D.?

Tedicare shows public-source Medicare data for Caroline Sizer, M.D. (NPI 1932492022), 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 Caroline Sizer, M.D. have ACO affiliation data?

Caroline Sizer, M.D. is shown with ACO affiliation data for Lifespan Health Alliance, LLC (MSSP, ACO ID A3336) and Sound Physicians Long Term Care Managment II (MSSP, ACO ID A5538).

What billing organization is linked to Caroline Sizer, M.D.?

Caroline Sizer, M.D. is linked to SOUTH SHORE CENTER FOR TONE MANAGEMENT PLLC (billing NPI 1275310872) in the available physician profile data.

Does Caroline Sizer, M.D. have Open Payments data?

Caroline Sizer, M.D. has 19 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.