Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Washington University

Q: What type of organization is Washington University?

Washington University is registered in NPPES as a Allergy & Immunology Physician (its primary provider taxonomy).

Allergy & Immunology Physician in Saint Louis, MO · enumerated 2008 · authorized official Cathy Eghigian, Director.

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

National Provider Identifier

1245495886

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Registry record

Entity type Organization (Type 2)

Legal business name Washington University

Practice address 660 S Euclid Ave, Saint Louis, MO, 63110

Phone (314) 935-0770

Fax (314) 935-0575

Enumeration date Jul 23, 2008

Last updated in NPPES Jul 23, 2008

Taxonomy & classification

207K00000X Allergy & Immunology Physician Allopathic & Osteopathic Physicians Primary

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians Secondary

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Secondary

207SG0201X Clinical Genetics (M.D.) Physician Allopathic & Osteopathic Physicians Secondary

207T00000X Neurological Surgery Physician Allopathic & Osteopathic Physicians Secondary

207U00000X Nuclear Medicine Physician Allopathic & Osteopathic Physicians Secondary

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians Secondary

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians Secondary

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians Secondary

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians Secondary

208C00000X Colon & Rectal Surgery Physician Allopathic & Osteopathic Physicians Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians Secondary

208VP0000X Pain Medicine Physician Allopathic & Osteopathic Physicians Secondary

Authorized official

Name Cathy Eghigian

Title Director

Phone (314) 935-0770

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 a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Washington University?

Washington University is registered in NPPES as a Allergy & Immunology Physician (its primary provider taxonomy).

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-07-23.