Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Caroline Sizer, MD

Individual provider Brain Injury Medicine (Physical Medicine & Rehabilitation) Physician · NPI 1932492022

Caroline Sizer, MD is registered under Physical Medicine and Rehabilitation in Braintree, Massachusetts. Qualified in 2011, 15 years ago. Practices with National Health Rehabilitation LLC, a 152-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
15
Licensed in
MA
In the registry since
2011
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

250 Pond St
Braintree, MA 02184-5351
Phone: (781) 348-2202
Fax: (781) 348-3989
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Brain Injury Medicine (Physical Medicine & Rehabilitation) Physician (primary) Taxonomy 2081P0301X · Licence 263051 (MA)

Record details

NPI number1932492022
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 23, 2011
Last updated in NPPESOctober 7, 2024
Certification dateOctober 7, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICAL MEDICINE AND REHABILITATION
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Group practice National Health Rehabilitation Llc — 152 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients471
Average patient age70

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Compensation for services other than consulting , including serving as faculty or as a speaker at a venue other than a continuing education program $9,056 3 payments
Travel and Lodging $1,293 3 payments · travel or lodging paid or reimbursed, such as to attend a conference
Consulting Fee $1,150 1 payment
Food and Beverage $670 23 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Affiliated with 2 inpatient rehabilitation facilities, which CMS identifies by certification number only.

Colleagues at National Health Rehabilitation LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 152 clinicians in the practice; 12 are shown here.