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Dr. Felix Wang Tsai, M.D.

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Louisville, KY · enumerated 2007.

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

National Provider Identifier

1972703015

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Registry record

Entity type Individual (Type 1)
Name Dr. Felix Wang Tsai
Credential M.D.
Sex Male
Practice address 411 E Chestnut St, Louisville, KY, 40202
Phone (502) 588-7641
Fax (502) 588-7700
Enumeration date Jul 18, 2007
Last updated in NPPES Mar 26, 2026

Taxonomy & licenses

208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians · License 61904 (KY) Primary
2080P0202X Pediatric Cardiology Physician Allopathic & Osteopathic Physicians · License N1191 (TX) Secondary
208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians · License 0101249419 (VA) Secondary
208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians · License N1191 (TX) Secondary
208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians · License FTL 41883 (TX) Secondary
208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians · License 27000 (SC) 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
189048504 Other TX CSHCN
8A4325 Other TX BCBS
5917693 Medicaid NC -
1972703015 Medicaid VA -
189048503 Medicaid TX -
189048501 Medicaid TX -
189048502 Other TX CSHCN

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

Where does Felix Tsai practice?
The practice location on file with NPPES is in Louisville, KY. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Felix Tsai?
The National Provider Identifier (NPI) for Felix Tsai is 1972703015, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-26.