Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Thomas J Harris, M.D.

Hematology & Oncology Physician in Waco, TX · enumerated 2005.

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

National Provider Identifier

1992789291

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Registry record

Entity type Individual (Type 1)

Name Mr. Thomas J Harris

Credential M.D.

Sex Male

Practice address 1700 W. Highway 6, Waco, TX, 76712

Phone (254) 399-0741

Fax (254) 399-0779

Enumeration date Dec 1, 2005

Last updated in NPPES Sep 4, 2012

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 33401 (AZ) Secondary

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License 0101245391 (VA) 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
220660901	Medicaid	TX	-
1992789291	Medicaid	VA	-
P01052034	Other	TX	RAILROAD MEDICARE

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 Thomas Harris practice?

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

What is the NPI number for Thomas Harris?

The National Provider Identifier (NPI) for Thomas Harris is 1992789291, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Carl Chakmakjian Medical Oncology Physician · Waco, TX NPI 1285675306 Carlos Encarnacion Medical Oncology Physician · Waco, TX NPI 1245273838 Robert Anderson Hematology & Oncology Physician · Waco, TX NPI 1760425706

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-09-04.