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Dr. Cassandra Lynn Libbing, DO

Hospitalist Physician in Washington, DC · enumerated 2021.

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

National Provider Identifier

1942889456

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Registry record

Entity type Individual (Type 1)
Name Dr. Cassandra Lynn Libbing
Credential DO
Sex Female
Practice address 3800 Reservoir Road Nw, Dept of Internal Medicine, Washington, DC, 20007
Phone (202) 444-8168
Fax (877) 303-1460
Enumeration date Apr 3, 2021
Last updated in NPPES Jun 13, 2024

Taxonomy & licenses

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License DO210012418 (DC) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO 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

What is the NPI number for Cassandra Libbing?
The National Provider Identifier (NPI) for Cassandra Libbing is 1942889456, a Type 1 (individual) record in the CMS NPPES registry.
Where does Cassandra Libbing practice?
The practice location on file with NPPES is in Washington, DC. Providers can have multiple locations; NPPES lists the primary practice address.

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