Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Thomas Mcdowell Anderson, MD

Diagnostic Radiology Physician in Libertyville, IL · enumerated 2006.

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

National Provider Identifier

1437109816

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Registry record

Entity type Individual (Type 1)

Name Dr. Thomas Mcdowell Anderson

Credential MD

Sex Male

Practice address 1800 Hollister Drive, Suite G-18, Libertyville, IL, 60048

Phone (847) 918-1462

Fax (847) 968-4311

Enumeration date May 10, 2006

Last updated in NPPES Apr 1, 2025

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 35.090033 (OH) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 01060007A (IN) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 036-044542 (IL) Primary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 46433-020 (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
036044542	Medicaid	IL	-
34634500	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 Anderson?

The National Provider Identifier (NPI) for Thomas Anderson is 1437109816, a Type 1 (individual) record in the CMS NPPES registry.

Where does Thomas Anderson practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-01.