Mary Elizabeth Costello, NP
Family Nurse Practitioner · South Orange, NJ
Mary Elizabeth Costello, NP is a family nurse practitioner with a practice address in South Orange, New Jersey, and NPI 1497922157, issued on May 13, 2008. Check the license (New Jersey 26NJ00157400, as entered in NPPES) with the New Jersey board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mary Elizabeth Costello
- Credential
- NP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 26NJ00157400 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 400 South Orange Avenue, South Orange, NJ 07079
- Phone
- (973) 761-9175
- Enumerated
- May 13, 2008
- Record last updated
- Feb 20, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (973) 761-9193
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 3,881 in New Jersey → Look up another NPI →
Also registered at 400 South Orange Avenue
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nikia SharpStudent in an Organized Health Care Education/Training Program1508553322
Verify Mary Elizabeth Costello in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New Jersey board licenses this profession
Search for license 26NJ00157400Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Mary Elizabeth Costello among 3,881 family nurse practitioner records in New Jersey
Mary Elizabeth Costello, NP is one of 3,881 family nurse practitioner records with a practice address in New Jersey. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2008, is newer than 9% of them.
- NPI issued2008 · 9% of these records are older, 90% newer
- In a Medicare fileNo · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2012 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
11 family nurse practitioner records list a practice address in South Orange
They are 11 of the 285 NPPES records with a practice address in South Orange, and 3,881 family nurse practitioner records in New Jersey. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 3,881 in New Jersey → Every provider in South Orange → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Abby Beutel, FNPSouth Orange, NJ 070791912598251
- Youn Hee Cho, NPSouth Orange, NJ 070791659450393
- Teresa Conklin, FNPSouth Orange, NJ 070791275769176
- Oneka Edwards, APNSouth Orange, NJ 070791023895257
- Diane Lynch, FNPSouth Orange, NJ 070791811227556
- Ashlyne Mejia, NPSouth Orange, NJ 070791184595290
- Samantha MinottSouth Orange, NJ 070791063980688
- Judy Thomas, NP-CSouth Orange, NJ 070791679958987
Common questions
What is Mary Elizabeth Costello, NP's NPI number?
Mary Elizabeth Costello, NP's National Provider Identifier (NPI) is 1497922157, issued on May 13, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Mary Elizabeth Costello, NP located?
The NPPES record lists a practice address at 400 South Orange Avenue, South Orange, NJ, 07079. Phone: (973) 761-9175. Providers update this record themselves, so call before visiting.
How can I verify Mary Elizabeth Costello, NP's license?
NPPES lists New Jersey license number 26NJ00157400, as entered by the provider. Search the New Jersey board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.