NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Ms. Ditta Ionie Allen, ANP

Adult Health Nurse Practitioner in Ellicott City, MD · enumerated 2016.

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

National Provider Identifier

1821542606

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Registry record

Entity type Individual (Type 1)
Name Ms. Ditta Ionie Allen
Credential ANP
Sex Female
Practice address Ellicott City, MD, 21042
Phone (877) 477-4177
Fax (877) 477-4177
Enumeration date Aug 9, 2016
Last updated in NPPES Mar 6, 2024

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

Taxonomy & licenses

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License R227281 (MD) Primary
363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 26NJ00635300 (NJ) Secondary

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.

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Frequently asked questions

What is the NPI number for Ditta Allen?
The National Provider Identifier (NPI) for Ditta Allen is 1821542606, a Type 1 (individual) record in the CMS NPPES registry.
Where does Ditta Allen practice?
The practice location on file with NPPES is in Ellicott City, MD. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-03-06.