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

Nicole Reiko Guillen, MD

Individual provider Emergency Medicine Physician · NPI 1528555026

Nicole Reiko Guillen, MD is an Emergency Medicine Physician in Sparks, Nevada. Practices as a sole proprietor and works from 3 locations. Licensed in California, Nevada and Oregon.

Licensed in
CA, NV, OR
In the registry since
2018
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2375 E Prater Way
Sparks, NV 89434-9641
Phone: (775) 356-4040
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 400 W Mineral King Ave, Visalia, CA 93291-6237 — (559) 624-2000
  • 930 Sw Abbey St, Newport, OR 97365-4820 — (541) 265-2244

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 21097 (NV)
Emergency Medicine Physician Taxonomy 207P00000X · Licence A166122 (CA)
Emergency Medicine Physician Taxonomy 207P00000X · Licence MD217502 (OR)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1528555026
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 19, 2018
Last updated in NPPESJanuary 27, 2025
Certification dateJanuary 27, 2025

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