MALLORY FAUST APRN, PMHNP-BC
NPI 1235977075
Nurse Practitioner - Psychiatric/Mental Health in Newark, DE

Active since July 16, 2024PECOS Enrolled
4755 OGLETOWN STANTON RD, NEWARK, DE 19718(302) 307-6143(252) 250-2375 Get Directions Write a Review

NPPES record last updated: April 20, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 20, 2026, Apr 19, 2026, Oct 2, 2024 and 2 more (5 updates tracked since 2024).

About Mallory Faust Aprn, Pmhnp-bc NPPES

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

MALLORY FAUST APRN, PMHNP-BC (NPI 1235977075) is an individual psychiatric/mental health provider in Newark, Delaware, licensed in Delaware (L8-0010686) and active in the NPI registry since July 2024. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1235977075
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameMALLORY FAUSTCredential: APRN, PMHNP-BC
Location Address4755 OGLETOWN STANTON RDNewark, DE 19718-2200
Mailing Address4755 Ogletown Stanton RdNewark, DE 19718-2200 · (302) 307-6143 · Fax (252) 250-2375
Fax(252) 250-2375
Sole ProprietorYes
Enumeration DateJuly 16, 2024
Last NPPES UpdateApril 20, 20265 updates tracked since enumeration
NPPES CertifiedApril 20, 2026
✔ NPI 1235977075 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
Licenses✔ Licensed in DE · L8-0010686✔ Licensed in MD · AC006879
Also ListedRegistered NurseTaxonomy 163W00000X · License L1-0070369 (DE)
4755 OGLETOWN STANTON RD, Newark, DE 19718

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mallory Faust Aprn, Pmhnp-bc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Mallory Faust reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Hospice and Palliative Medicine
4755 OGLETOWN STANTON RD STE 6E34
Newark, DE 19718
  • Reassigned Medicare billing, Delaware enrollment
  • 41 clinicians in this Medicare group
Neurology
4755 OGLETOWN STANTON RD
Newark, DE 19718
  • Reassigned Medicare billing, Delaware enrollment
  • 1,531 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19718 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$88.37 typical visit price
range $57.12 – $173.08
Typical copayment $22.09 (range $14.28 – $43.27)
Most-billed visit code 99203
Established Patient
$100.68 typical visit price
range $18.36 – $141.05
Typical copayment $25.17 (range $4.59 – $35.26)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Physician Assistant (Medical)
4755 OGLETOWN STANTON RD
NEWARK, DE 19718
Nurse Practitioner
4755 OGLETOWN STANTON RD, ROOM E1070 CENTER FOR HEART & VASCULAR HEALTH AT CHRIST
NEWARK, DE 19718
Emergency Medicine
4755 OGLETOWN STANTON RD
NEWARK, DE 19718
Internal Medicine (Cardiovascular Disease)
4755 OGLETOWN STANTON RD
NEWARK, DE 19718
Nurse Practitioner (Acute Care)
4755 OGLETOWN STANTON RD
NEWARK, DE 19718
Student in an Organized Health Care Education/Training Program
4755 OGLETOWN STANTON RD
NEWARK, DE 19718
Nurse Anesthetist, Certified Registered
4755 OGLETOWN STANTON RD
NEWARK, DE 19718
Nurse Anesthetist, Certified Registered
4755 OGLETOWN STANTON RD
NEWARK, DE 19718

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 Mallory Faust's NPI number?

The NPI number for Mallory Faust is 1235977075. It was assigned to this individual provider in the NPPES registry on July 16, 2024.

Where is Mallory Faust located?

Mallory Faust practices at 4755 Ogletown Stanton Rd, Newark, DE 19718. The listed phone number is (302) 307-6143.

What is Mallory Faust's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Mallory Faust enrolled in Medicare?

Yes. Mallory Faust is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Mallory Faust's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mallory Faust reassigns Medicare benefits to 2 organizations: Christiana Care Health Initiatives (Newark, DE) and Christiana Care Health Services, Inc (Newark, DE). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mallory Faust's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Mallory Faust was last updated on April 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months 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.