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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

THERESA MARIE JOHNSTON NP
NPI 1235124306
Nurse Practitioner - Family in Newark, DE

Active since September 15, 2005
4745 OGLETOWN STANTON RD, MEDICAL ARTS PAVILLION 1 SUITE 136, NEWARK, DE 19713(302) 733-2387 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

About Theresa Marie Johnston Np NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

THERESA MARIE JOHNSTON NP (NPI 1235124306) is an individual family provider in Newark, Delaware, licensed in Delaware (LG-0000161) and active in the NPI registry since September 2005.

NPPES Registry Identity

NPI1235124306
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameTHERESA MARIE JOHNSTONCredential: NP
Location Address4745 OGLETOWN STANTON RD, MEDICAL ARTS PAVILLION 1 SUITE 136Newark, DE 19713-2067
Mailing Address123 Netherlands DrMiddletown, DE 19709-9679 · (302) 834-0741
Phone(302) 733-2387
Sole ProprietorNo
Enumeration DateSeptember 15, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1235124306 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in DE · LG-0000161
4745 OGLETOWN STANTON RD, Newark, DE 19713
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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

GABRIELLA LYNN ZACCONE
Physician Assistant
4745 OGLETOWN STANTON RD
NEWARK, DE 19713
New Castle County (302) 744-9645
TODD T MILLER PA C
Physician Assistant (Surgical)
4745 OGLETOWN STANTON RD, SUITE 225
NEWARK, DE 19713
New Castle County (302) 731-2888
GORDON J OSTRUM JR. M.D.
Obstetrics & Gynecology
4745 OGLETOWN STANTON RD, SUITE 106
NEWARK, DE 19713
New Castle County (302) 454-9800
BONNIE O OCONNOR PA C
Physician Assistant (Surgical)
4745 OGLETOWN STANTON RD, SUITE 225
NEWARK, DE 19713
New Castle County (302) 731-2888
PAULETTE HAWS NP
Nurse Practitioner (Neonatal)
4745 OGLETOWN STANTON RD, SUITE 217
NEWARK, DE 19713
New Castle County (302) 733-4387
DR. BERNARD HAIMOWITZ M.D.
Specialist
4745 OGLETOWN STANTON RD
NEWARK, DE 19713
New Castle County (302) 738-5300
FAITH A, BROSCH M.D,
Obstetrics & Gynecology
4745 OGLETOWN STANTON RD, MAP1, SUITE 207
NEWARK, DE 19713
New Castle County (302) 368-9000
ROBERT G LOCKE DO
Pediatrics (Neonatal-Perinatal Medicine)
4745 OGLETOWN STANTON RD, SUITE 217 MEDICAL ARTS PAVILION ONE
NEWARK, DE 19713
New Castle County (302) 733-2374

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Theresa Johnston's NPI number?

The NPI number for Theresa Johnston is 1235124306. It was assigned to this individual provider in the NPPES registry on September 15, 2005.

Where is Theresa Johnston located?

Theresa Johnston practices at 4745 Ogletown Stanton Rd Medical Arts Pavillion 1 Suite 136, Newark, DE 19713. The listed phone number is (302) 733-2387.

What is Theresa Johnston's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

When was this NPI record last updated?

The NPPES record for Theresa Johnston was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 43 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.