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Claire Muzhi Xu, M.D.

Hospitalist Physician in Baltimore, MD · enumerated 2014.

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

National Provider Identifier

1194143768

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Registry record

Entity type Individual (Type 1)
Name Claire Muzhi Xu
Credential M.D.
Sex Female
Practice address 22 S Greene St, Baltimore, MD, 21201
Phone (410) 328-7943
Fax (410) 328-3494
Enumeration date Apr 1, 2014
Last updated in NPPES Oct 8, 2018

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License D83012 (MD) Secondary
208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License D83012 (MD) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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 Claire Xu?
The National Provider Identifier (NPI) for Claire Xu is 1194143768, a Type 1 (individual) record in the CMS NPPES registry.
Where does Claire Xu practice?
The practice location on file with NPPES is in Baltimore, MD. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-10-08.