Marycar A Mcdermott

Marycar A Mcdermott is a Personal Care Attendant provider (Technician) practicing in Washington, DC, registered in the NPPES registry with NPI 1427974708 since 2026.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1427974708
Entity type	Individual (Type 1)
Name	Marycar A Mcdermott
Sex	Female
Practice address	Washington, DC, 20007
Phone	202-486-6678
Enumeration date	2026-06-29
Last updated in NPPES	2026-06-29

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
3747P1801X	Personal Care Attendant	Primary	—	—

Copy-ready billing details

Provider: Marycar Mcdermott
NPI: 1427974708
Taxonomy: 3747P1801X (Personal Care Attendant)
Address: Washington, DC, 20007

Verify this record

Cross-check NPI 1427974708 against the authoritative CMS record: view Marycar A Mcdermott on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

What is the NPI number for Marycar Mcdermott?

The National Provider Identifier (NPI) for Marycar Mcdermott is 1427974708, a Type 1 (individual) record in the CMS NPPES registry.

Where does Marycar Mcdermott practice?

The practice location on file with NPPES is in Washington, DC. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2026-06-29.