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

Dr. Gregory J McCarthy, DPM

Individual provider Podiatrist · NPI 1831186865

Dr. Gregory J McCarthy, DPM practises Podiatry in Sioux City, Iowa. Graduated from Des Moines University of Osteopathic Medicine and Health Sciences in 1993, 33 years ago. Practices with Winnebago Tribe of Nebraska, a 33-clinician group and accepts Medicare assignment. Licensed in Iowa.

Years since qualifying
33
Trained at
Des Moines University of Osteopathic Medicine and Health Sciences
Licensed in
IA
In the registry since
2005
What do these letters mean?
DPM — Doctor of Podiatric Medicine
A foot and ankle physician and surgeon.

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Practice location Address checks out

2916 Hamilton Blvd
Sioux City, IA 51104-2429 Not confirmed with CMS for 18 years — call before visiting
Phone: (712) 255-1621
Fax: (712) 255-1389
Show map & directions

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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Podiatrist (primary) Taxonomy 213E00000X · Licence 00575 (IA)

Record details

NPI number1831186865
Entity typeIndividual (Type 1)
GenderMale
Credentials DPM
Sole proprietorNo
NPI enumeratedOctober 4, 2005
Last updated in NPPESApril 28, 2008

Medicare enrollment

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

Medicare specialtyPODIATRY
Medical schoolDES MOINES UNIVERSITY OF OSTEOPATHIC MEDICINE AND HEALTH SCIENCES
Graduated 1993 (33 years in practice)
Group practice Winnebago Tribe Of Nebraska — 33 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of nail tissue 1,905 times · 96th percentile
Removal or shaving of skin growth 588 times · 96th percentile
Removal of tissue 94 times · 85th percentile

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients831
Services billed 2,806 a service is one billed item, such as a visit, a test or a procedure
Average patient age81

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 $117 2 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.

  • St Lukes Regional Medical Center Hospital · Sioux City, IA
  • Twelve Clans Unity Hospital Hospital · Winnebago, NE

Colleagues at Winnebago Tribe of Nebraska

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 33 clinicians in the practice; 12 are shown here.

Other providers in Sioux City