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

Dr. Benjamin Thomas Gielda, MD

Individual provider Therapeutic Radiology Physician · NPI 1386801496

Dr. Benjamin Thomas Gielda, MD practises Radiation Oncology in Saint Joseph, Michigan. Graduated from University of Michigan Medical School in 2006, 20 years ago. Practices with Lakeland Medical Practices, a 287-clinician group and accepts Medicare assignment. Licensed in Illinois and Michigan.

Years since qualifying
20
Trained at
University of Michigan Medical School
Licensed in
IL, MI
In the registry since
2008
Specialties on file
2
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

1234 Napier Ave
Saint Joseph, MI 49085-2112 Not confirmed with CMS for 11 years — call before visiting
Phone: (269) 983-8888
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence 4301101556 (MI)
Therapeutic Radiology Physician Taxonomy 2085R0203X · Licence 125051 (IL)

Record details

NPI number1386801496
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 18, 2008
Last updated in NPPESMarch 17, 2015

Medicare enrollment

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

Medicare specialtyRADIATION ONCOLOGY
Medical schoolUNIVERSITY OF MICHIGAN MEDICAL SCHOOL
Graduated 2006 (20 years in practice)
Group practice Lakeland Medical Practices — 287 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 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 patients270
Services billed 1,866 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.

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.

Food and Beverage $30 1 payment · 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. Those with a page here are linked.

  • Lakeland Hospital, St Joseph Hospital · St Joseph, MI · listed as Lakeland Hospital at Niles and St Joseph, Inc
  • Corewell Health Watervliet Hospital Hospital · Watervliet, MI

Colleagues at Lakeland Medical Practices

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 287 clinicians in the practice; 12 are shown here.