Individual provider · Type 1 NPI

Mark Day, DO

Family Medicine Physician · Las Vegas, NV

NPI number 1164436994 Active

Practice location

1655 E Cactus Ave Ste 400
Las Vegas, NV 89183-7723

Call (702) 724-8777 Map

Fax (702) 724-8749

Mailing address

PO Box 50698
Henderson, NV 89074-0698

Other practice locations

56 N Pecos Rd, Ste A, Henderson, NV 89074-0698 · (702) 456-9100

Specialties and licenses

Taxonomy	Code	License
Family Medicine Physician Primary	207Q00000X	656 (NV)

Family Medicine Physician: Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

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About NPI 1164436994

Mark Day, DO's National Provider Identifier is 1164436994, issued on Jul 28, 2006. The primary taxonomy on file is Family Medicine Physician (207Q00000X), and the practice location is in Las Vegas, NV. The record was last updated on Nov 6, 2025.