Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jenny Youjin Seo, D.O

Hospitalist Physician in Bethesda, MD · enumerated 2013.

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

National Provider Identifier

1740521541

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Registry record

Entity type Individual (Type 1)

Name Jenny Youjin Seo

Credential D.O

Sex Female

Practice address 8600 Old Georgetown Rd, Bethesda, MD, 20814

Phone (240) 506-3451

Enumeration date Mar 5, 2013

Last updated in NPPES Jul 27, 2017

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License D80921 (MD) Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License H80921 (MD) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1740521541 active?

Yes, as of the latest NPPES snapshot, NPI 1740521541 is active (record last updated 2017-07-27).

How do I verify Jenny Seo's NPI record?

Cross-check NPI 1740521541 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-07-27.