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

Mrs. Margaret Ann Delmastro, RNP

Individual provider Registered Nurse · NPI 1043533110

Mrs. Margaret Ann Delmastro, RNP is a Registered Nurse in Orange, California. Licensed in California. Registered with an NPI since 2010.

Licensed in
CA
In the registry since
2010
Specialties on file
2

Practice location Address checks out

1100 W Stewart Dr
Orange, CA 92868-3849
Phone: (714) 734-6268
Fax: (714) 734-6231
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 221014 (CA)
Registered Nurse Taxonomy 163W00000X · Licence 221014 (CA)

Record details

NPI number1043533110
Entity typeIndividual (Type 1)
GenderFemale
Credentials RNP
Sole proprietorNo
NPI enumeratedMarch 3, 2010
Last updated in NPPESDecember 4, 2014

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