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

William J. McGroarty, MD

Individual provider Diagnostic Radiology Physician · NPI 1558367268

William J. McGroarty, MD practises Diagnostic Radiology in Hamilton, New Jersey. Graduated from Rutgers New Jersey Medical School in 1985, 41 years ago. Practices with Regional Diagnostic Imaging LLC, a 27-clinician group and accepts Medicare assignment. Licensed in New Jersey and Pennsylvania.

Years since qualifying
41
Trained at
Rutgers New Jersey Medical School
Licensed in
NJ, PA
In the registry since
2005
Specialties on file
4
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

2501 Kuser Rd Ste 500
Hamilton, NJ 08691-3386 Not confirmed with CMS for 11 years — call before visiting
Phone: (609) 585-8800
Fax: (609) 585-1825
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence 25MA04956000 (NJ)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence MD046248L (PA)
Body Imaging Physician Taxonomy 2085B0100X · Licence MD046248L (PA)
Body Imaging Physician Taxonomy 2085B0100X · Licence 25MA04956000 (NJ)

Record details

NPI number1558367268
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 27, 2005
Last updated in NPPESMay 7, 2015

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolRUTGERS NEW JERSEY MEDICAL SCHOOL
Graduated 1985 (41 years in practice)
Group practice Regional Diagnostic Imaging Llc — 27 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 patients2,598
Services billed 5,824 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Regional Diagnostic Imaging LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 27 clinicians in the practice; 12 are shown here.

Other providers in Hamilton