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James K Grabouski, DDS MS

Orthodontics and Dentofacial Orthopedics Dentistry in Sioux City, IA · enumerated 2006.

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

National Provider Identifier

1104999358

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Registry record

Entity type Individual (Type 1)
Name James K Grabouski
Credential DDS MS
Sex Male
Practice address 3012 Hamilton Blvd, Sioux City, IA, 51104
Phone (712) 258-0501
Fax (712) 258-1461
Enumeration date Nov 16, 2006
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1223X0400X Orthodontics and Dentofacial Orthopedics Dentistry Dental Providers · License 7765 (IA) Primary

Other identifiers

Identifier Type State Issuer
0124321 Medicaid IA -
10025343600 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.

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Frequently asked questions

How do I verify James Grabouski's NPI record?
Cross-check NPI 1104999358 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1104999358 active?
Yes, as of the latest NPPES snapshot, NPI 1104999358 is active (record last updated 2007-07-08).

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