NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Katherine A Mandell, MD

Trauma Surgery Physician in Seattle, WA · enumerated 2006.

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

National Provider Identifier

1891804639

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Katherine A Mandell
Credential MD
Sex Female
Practice address 801 Broadway Ste 300, Seattle, WA, 98122
Fax (206) 215-6499
Enumeration date Aug 29, 2006
Last updated in NPPES Jun 17, 2021

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 249570 (MA) Secondary
2086S0102X Surgical Critical Care Physician Allopathic & Osteopathic Physicians · License 249570 (MA) Secondary
2086S0127X Trauma Surgery Physician Allopathic & Osteopathic Physicians · License 249570 (MA) 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
110090277A Medicaid MA -

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

Where does Katherine Mandell practice?
The practice location on file with NPPES is in Seattle, WA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Katherine Mandell?
The National Provider Identifier (NPI) for Katherine Mandell is 1891804639, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-06-17.