Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Michele P Thatcher MD Ltd

Internal Medicine Physician in St Charles, IL · enumerated 2007 · authorized official Carla Colonna, Practice Manager.

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

National Provider Identifier

1073739611

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Registry record

Entity type Organization (Type 2)

Legal business name Michele P Thatcher MD Ltd

Practice address 2320 Dean St, Suite 201, St Charles, IL, 60175

Phone (630) 377-4048

Fax (630) 377-8305

Enumeration date Apr 18, 2007

Last updated in NPPES Oct 25, 2007

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Carla Colonna

Title Practice Manager

Phone (630) 377-6185

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2007-10-25. Verify at npiregistry.cms.hhs.gov.

Where is Michele P Thatcher MD Ltd located?

The practice location on file with NPPES is in St Charles, IL.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-10-25.