Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

John Diaz, MD

Individual provider Emergency Medicine Physician · NPI 1043254154

John Diaz, MD is an Emergency Medicine Physician in Nogales, Arizona. Practices as a sole proprietor. Licensed in Arizona.

Licensed in
AZ
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1171 W Target Range Road Carondelet Holy Cross Hospital
Nogales, AZ 85621
Phone: (520) 287-2771
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 9465 (AZ)

Record details

NPI number1043254154
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 16, 2006
Last updated in NPPESJuly 8, 2007
Mailing address1427 E Silver St, Tucson, AZ 85719-3157

Other providers in Nogales