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Dr. April J Castro, DDS

General Practice Dentistry in Bethesda, MD · enumerated 2006 · practices at Timothy J. Dunn, D.D.S, P.A..

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

National Provider Identifier

1821007147

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Registry record

Entity type Individual (Type 1)
Name Dr. April J Castro
Credential DDS
Sex Female
Practice address 10010 Old Georgetown Rd, Bethesda, MD, 20814
Phone (301) 530-4000
Fax (301) 530-0875
Enumeration date Aug 5, 2006
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License MD13577 (MD) Primary
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

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

Where does April Castro practice?
The practice location on file with NPPES is in Bethesda, MD. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for April Castro?
The National Provider Identifier (NPI) for April Castro is 1821007147, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.