NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

James Roat, M.D.

Gastroenterology Physician in Sioux City, IA · enumerated 2006 · practices at Danny L Whiting DDS PC.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1457331621

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Registry record

Entity type Individual (Type 1)
Name James Roat
Credential M.D.
Sex Male
Practice address Sioux City, IA, 51104
Phone (712) 252-1322
Enumeration date Jan 22, 2006
Last updated in NPPES Jul 8, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 23838 (IA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
208371 Medicaid IA -
20520 Other NE NEBRASKA BLUE SHIELD
A002980 Other - TRICARE
XPY047960 Medicaid CA -
1073972 Medicaid WA -
75985 Medicaid MT -
2984768 Medicaid CO -
42-123915400 Medicaid NE -
7775360 Medicaid SD -

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.

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Frequently asked questions

Where does James Roat practice?
The practice location on file with NPPES is in Sioux City, IA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for James Roat?
The National Provider Identifier (NPI) for James Roat is 1457331621, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.