Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Michael F Girolami, M.D.

Internal Medicine Physician in Greenfield, WI · enumerated 2013.

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

National Provider Identifier

1326380726

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Registry record

Entity type Individual (Type 1)

Name Dr. Michael F Girolami

Credential M.D.

Sex Male

Practice address 6901 W Edgerton Ave, Greenfield, WI, 53220

Phone (414) 421-8400

Enumeration date Mar 23, 2013

Last updated in NPPES Oct 27, 2025

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 63328 (WI) Primary

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 63328 (WI) Secondary

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
100041526	Medicaid	WI	-
1326380726	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 is the NPI number for Michael Girolami?

The National Provider Identifier (NPI) for Michael Girolami is 1326380726, a Type 1 (individual) record in the CMS NPPES registry.

Where does Michael Girolami practice?

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

Other providers at this practice address

Browse all →

Annah Houk Physician Assistant · Greenfield, WI NPI 1902878242 Maggie Zaki Family Medicine Physician · Milwaukee, WI NPI 1629036215 Melissa Lynch Physician Assistant · Greenfield, WI NPI 1043268600 Hany Mikhaeel Family Medicine Physician · Milwaukee, WI NPI 1194773796 Janice Gregory Nurse Practitioner · Greenfield, WI NPI 1184674723 Heidi Harkins Internal Medicine Physician · Greenfield, WI NPI 1033160957 Mesfin Abdissa Internal Medicine Physician · Milwaukee, WI NPI 1376579417 Aurora Pharmacy Inc Pharmacy · Milwaukee, WI NPI 1861426082

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-10-27.