Skip to main content

Dr. John C. Carroll, MD

Urology (Urology Physician)

  • Medicare participating

At a glance

Years since graduation
39
In the NPI registry since
2005
Medicare patients seen, 2024
1,327

The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is

Education and training

  • 1987Medical school: Tufts University School of Medicine
  • 2005Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier

Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).

Specialties and state licenses

  • Urology Physician primary
    MA license 78526

As reported to the NPI registry. To confirm a license is current, check the state medical board.

Map: Urology per capita by county →

Where they work

Hospitals

Medical groups

Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.

Medicare patients and services

Medicare patients, 2024
1,327
Services billed
10,223
Patients’ average age
75
Most frequent Medicare services, 2023
ServiceTimesPatients
Urinalysis, manual test1,148974
Established patient office or other outpatient visit, 30-39 minutes754679
Ultrasound measurement of bladder capacity after voiding276241
Established patient office or other outpatient visit, 20-29 minutes264247
Insertion of needle into vein for collection of blood sample193176
Diagnostic exam of bladder and urethra using an endoscope139112
Simple insertion of temporary bladder tube11729
New patient office or other outpatient visit, 45-59 minutes113113
Established patient office or other outpatient visit, 40-54 minutes106104
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes6361

Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.

Medicare prescriptions

Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.

Payments from drug and device companies

In 2025, 2 companies reported 2 payments worth $238 in total to this clinician.

By company
Stryker Corporation$168
Calyxo, Inc.$70.11
By type
Food and Beverage$238

From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.

Who received the most in Massachusetts →

Other Urology clinicians in Fall River

Sources

NPI registry (CMS NPPES, November 2026; record last updated April 21, 2020), Medicare Care Compare, Medicare Physician & Other Practitioners (2024), Medicare Part D Prescribers (2024) and Open Payments (2025). Information is self-reported or billed data and may be out of date; call before visiting.

NPI 1902804990. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.