Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Boyd Joseph Decker, CAA

Anesthesiologist Assistant in Grafton, WI · enumerated 2017 · practices at Aurora Medical Center Grafton.

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

National Provider Identifier

1649799644

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Registry record

Entity type Individual (Type 1)

Name Boyd Joseph Decker

Credential CAA

Sex Male

Practice address 975 Port Washington Rd, Grafton, WI, 53024

Phone (262) 329-1000

Enumeration date Sep 12, 2017

Last updated in NPPES Jun 5, 2023

Taxonomy & licenses

367H00000X Anesthesiologist Assistant Physician Assistants & Advanced Practice Nursing Providers Primary

Other identifiers

Identifier	Type	State	Issuer
100071883	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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Boyd Decker?

Boyd Decker is registered in NPPES with the primary taxonomy of Anesthesiologist Assistant. 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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Robert Fish Anesthesiology Physician · Grafton, WI NPI 1942292610 Laurie Williams Nurse Practitioner · Grafton, WI NPI 1982695136 Thomas Zukowski Hematology & Oncology Physician · Grafton, WI NPI 1912989260 Igor Levin Anesthesiology Physician · Grafton, WI NPI 1376527895 Ali Sadeghi Anesthesiology Physician · Grafton, WI NPI 1114901345 Chad Vanden Heuvel Anesthesiology Physician · Grafton, WI NPI 1467436444 Michael Erickson Surgery Physician · Grafton, WI NPI 1497732408 Harjot Sidhu Gastroenterology Physician · Grafton, WI NPI 1902885924

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-06-05.