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

Individual provider Hospitalist Physician · NPI 1669944369

Kathleen Marie Mackessy, FNP is a Hospitalist Physician in San Diego, California. Licensed in California. Registered with an NPI since 2018.

Licensed in
CA
In the registry since
2018
Specialties on file
2
What do these letters mean?
FNP — Family Nurse Practitioner
A nurse practitioner who treats patients of all ages, much like a family doctor.

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Practice location Address checks out

6155 Cornerstone Ct E Ste 220
San Diego, CA 92121-4737
Phone: (858) 458-2993
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence NPF95010414 (CA)
Hospitalist Physician Taxonomy 208M00000X · Licence NPF95010414 (CA)

Record details

NPI number1669944369
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP
Sole proprietorNo
NPI enumeratedDecember 19, 2018
Last updated in NPPESNovember 6, 2019

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