Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Thomas Holbrook, MD

Psychiatry Physician in Hartland, WI · enumerated 2006.

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

National Provider Identifier

1760593180

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Registry record

Entity type Individual (Type 1)

Name Dr. Thomas Holbrook

Credential MD

Sex Male

Practice address 555 S Industrial Dr, Suite 1, Hartland, WI, 53029

Phone (262) 367-7010

Fax (262) 367-5132

Enumeration date Aug 31, 2006

Last updated in NPPES Sep 4, 2008

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 17769-020 (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
31228300	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 Thomas Holbrook?

The National Provider Identifier (NPI) for Thomas Holbrook is 1760593180, a Type 1 (individual) record in the CMS NPPES registry.

Where does Thomas Holbrook practice?

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

Other providers at this practice address

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Erin Malone Mental Health Counselor · Hartland, WI NPI 1598281362

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-09-04.