Individual provider · Type 1 NPI

Gustavo Horacio Day, MD

Internal Medicine Physician · Dallas, TX

NPI number 1538239173 Active

Practice location

7777 Forest Ln, Building B, SUITE416
Dallas, TX 75230-2505

Call (972) 566-6764 Map

Fax (972) 566-6968

Mailing address

PO Box 738305
Dallas, TX 75373-8305

Specialties and licenses

TaxonomyCodeLicense
Internal Medicine Physician Primary 207R00000XK1411 (TX)

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 1538239173

Gustavo Horacio Day, MD's National Provider Identifier is 1538239173, issued on Nov 9, 2006. The primary taxonomy on file is Internal Medicine Physician (207R00000X), and the practice location is in Dallas, TX. The record was last updated on May 18, 2026.