Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Gregory J Mccarthy, DPM
Podiatrist in Sioux City, IA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1831186865
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Dr. Gregory J Mccarthy
Credential DPM
Sex Male
Practice address 2916 Hamilton Blvd, Sioux City, IA, 51104
Phone (712) 255-1621
Fax (712) 255-1389
Enumeration date Oct 4, 2005
Last updated in NPPES Apr 28, 2008
Taxonomy & licenses
DPM · Doctor of Podiatric Medicine: A physician specializing in medical and surgical care of the foot and ankle.
About the DPM credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 2122473 | Medicaid | IA | - |
| 0435834 | Medicaid | IA | - |
| 10025293700 | Medicaid | NE | - |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Is NPI 1831186865 active?
Yes, as of the latest NPPES snapshot, NPI 1831186865 is active (record last updated 2008-04-28).
How do I verify Gregory Mccarthy's NPI record?
Cross-check NPI 1831186865 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → Marty Kelley Podiatrist · Sioux City, IA NPI 1215924253 Michael Sloniker Audiologist · Sioux City, IA NPI 1881644946 Ear Nose and Throat Consultants and Hearing Services Plc Otolaryngology Physician · Sioux City, IA NPI 1063636470 Dr Greg J Mccarthy PC Podiatrist · Sioux City, IA NPI 1922201227 Siouxland Hearing Healthcare Plc Audiologist · Sioux City, IA NPI 1295984789
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-28.