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

Brett Ashley Hartsfield, FNP, RN, PHN

Individual provider Family Nurse Practitioner · NPI 1811546872

Brett Ashley Hartsfield, FNP, RN, PHN is a Family Nurse Practitioner in Costa Mesa, California. Licensed in California. Registered with an NPI since 2019.

Licensed in
CA
In the registry since
2019
What do these letters mean?
FNP — Family Nurse Practitioner
A nurse practitioner who treats patients of all ages, much like a family doctor.
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.

See every abbreviation used in this directory →

Practice location Address checks out

485 E 17th St Ste 500
Costa Mesa, CA 92627-4705
Phone: (949) 903-0100
Show map & directions

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

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 95010271 (CA)

Record details

NPI number1811546872
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP , RN , PHN
Sole proprietorNo
NPI enumeratedSeptember 11, 2019
Last updated in NPPESSeptember 11, 2019

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