Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Arthur M Sonneland III, MD
Urology Physician in Green Bay, WI · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1639196413
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Registry record
Entity type Individual (Type 1)
Name Arthur M Sonneland III
Credential MD
Sex Male
Practice address 2845 Greenbrier Rd Ste 240, Green Bay, WI, 54311
Phone (920) 288-8280
Fax (920) 288-8285
Enumeration date Jul 16, 2006
Last updated in NPPES Sep 30, 2008
Taxonomy & licenses
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 |
|---|---|---|---|
| 30528300 | Medicaid | WI | - |
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 this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Arthur Sonneland?
Arthur Sonneland is registered in NPPES with the primary taxonomy of Urology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Myron Marlett Urology Physician · Green Bay, WI NPI 1740226265 William Dougherty Urology Physician · Green Bay, WI NPI 1548298789 Timothy Kennedy Urology Physician · Green Bay, WI NPI 1417985631 Bruce Neal Urology Physician · Green Bay, WI NPI 1154359388 Heather Stefaniak Urology Physician · Green Bay, WI NPI 1013139641 Stephanie Smullen Physician Assistant · Green Bay, WI NPI 1316117500 Ethan Karol Physician Assistant · Green Bay, WI NPI 1780969246
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-09-30.