Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Aaron Michael Wieland, MD

Otolaryngology Physician in Madison, WI · enumerated 2007.

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

National Provider Identifier

1689887986

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Registry record

Entity type Individual (Type 1)

Name Dr. Aaron Michael Wieland

Credential MD

Sex Male

Practice address 600 Highland Ave, K4/7 7375, Madison, WI, 53792

Phone (608) 263-6190

Fax (608) 263-6199

Enumeration date May 7, 2007

Last updated in NPPES Feb 2, 2021

Taxonomy & licenses

207YX0007X Plastic Surgery within the Head & Neck (Otolaryngology) Physician Allopathic & Osteopathic Physicians · License 53944-020 (WI) Secondary

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License 53944-020 (WI) 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
1689887986	Other	NE	WELLMARK
10025044400	Medicaid	NE	-
1689887986	Medicaid	IA	-

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

What specialty is Aaron Wieland?

Aaron Wieland is registered in NPPES with the primary taxonomy of Otolaryngology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-02-02.