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

MS. Mary Elizabeth Costello, NP

Individual provider Family Nurse Practitioner · NPI 1497922157

MS. Mary Elizabeth Costello, NP is a Family Nurse Practitioner in South Orange, New Jersey. Licensed in New Jersey. Registered with an NPI since 2008.

Licensed in
NJ
In the registry since
2008
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

See every abbreviation used in this directory →

Practice location Address checks out

400 S Orange Avenue Seton Hall University Health Services
South Orange, NJ 07079-2697
Phone: (973) 761-9175
Fax: (973) 761-9193
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 26NJ00157400 (NJ)

Record details

NPI number1497922157
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorNo
NPI enumeratedMay 13, 2008
Last updated in NPPESFebruary 20, 2012

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