Individual provider · Type 1 NPI

Thomas Sean William Petit, MD

Internal Medicine Physician · Norwalk, CA

NPI number 1134423387 Active · reactivated Feb 20, 2026

Practice location

10937 Firestone Blvd
Norwalk, CA 90650-2242

Call (562) 262-2111 Map

Other practice locations

  • 12923 Inglewood Ave Ste 1, Hawthorne, CA 90250-5573 · (310) 675-0395

Specialties and licenses

TaxonomyCodeLicense
Internal Medicine Physician Primary 207R00000XME144317 (FL)
Internal Medicine Physician 207R00000XC196078 (CA)

Internal Medicine Physician: A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medi…

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About NPI 1134423387

Thomas Sean William Petit, MD's National Provider Identifier is 1134423387, issued on Jan 3, 2011. The primary taxonomy on file is Internal Medicine Physician (207R00000X), and the practice location is in Norwalk, CA. The record was last updated on Aug 15, 2026.