Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mitchell R Elgin, D.O.

Hospitalist Physician in Grafton, WI · enumerated 2016 · practices at Aurora Medical Center Grafton.

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

National Provider Identifier

1528421369

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Registry record

Entity type Individual (Type 1)

Name Mitchell R Elgin

Credential D.O.

Sex Male

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

Phone (262) 329-1000

Enumeration date Mar 30, 2016

Last updated in NPPES Dec 2, 2021

Taxonomy & licenses

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 72951-21 (WI) Primary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 72951-21 (WI) Secondary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
100101834	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

Where does Mitchell Elgin practice?

The practice location on file with NPPES is in Grafton, WI. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Mitchell Elgin?

The National Provider Identifier (NPI) for Mitchell Elgin is 1528421369, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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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 2021-12-02.