NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marriah Ma, ED.S.

School Psychologist in Wilmington, DE · enumerated 2021.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1255914123

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Marriah Ma
Credential ED.S.
Sex Female
Practice address 2916 Duncan Rd, Wilmington, DE, 19808
Phone (302) 636-5681
Enumeration date Apr 29, 2021
Last updated in NPPES Apr 29, 2021

Taxonomy & licenses

103TS0200X School Psychologist Behavioral Health & Social Service Providers · License 105471 (DE) Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Marriah Ma practice?
The practice location on file with NPPES is in Wilmington, DE. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Marriah Ma?
The National Provider Identifier (NPI) for Marriah Ma is 1255914123, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-04-29.