Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Christina Irene Tsien, MD

Radiation Oncology Physician in Washington, DC · enumerated 2006.

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

National Provider Identifier

1528151990

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Registry record

Entity type Individual (Type 1)

Name Dr. Christina Irene Tsien

Credential MD

Sex Female

Practice address 5255 Loughboro Rd Nw Bldg A1, Washington, DC, 20016

Phone (314) 747-7236

Fax (314) 747-9557

Enumeration date Sep 30, 2006

Last updated in NPPES Nov 8, 2019

Taxonomy & licenses

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License 2014038012 (MO) Secondary

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License D88476 (MD) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
ENROLLED	Medicaid	IL	-

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 → Validate an NPI →

Frequently asked questions

What is the NPI number for Christina Tsien?

The National Provider Identifier (NPI) for Christina Tsien is 1528151990, a Type 1 (individual) record in the CMS NPPES registry.

Where does Christina Tsien 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 2026-07-13. Provider record last updated 2019-11-08.