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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Hyo Seung Ahn, M.D.

Diagnostic Radiology Physician in Owings Mills, MD · enumerated 2006.

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

National Provider Identifier

1730152380

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Registry record

Entity type Individual (Type 1)
Name Dr. Hyo Seung Ahn
Credential M.D.
Sex Male
Practice address 21 Crossroads Dr, Ste 100, Owings Mills, MD, 21117
Phone (410) 356-8186
Fax (410) 356-4180
Enumeration date Feb 13, 2006
Last updated in NPPES Jul 20, 2023

Taxonomy & licenses

2085N0700X Neuroradiology Physician Allopathic & Osteopathic Physicians · License D0025839 (MD) Secondary
2085N0700X Neuroradiology Physician Allopathic & Osteopathic Physicians · License MD044797 (DC) Secondary
2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License MD044797 (DC) Secondary
2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License D0025839 (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
KA80 Other MD B/C B/S
2849 Other DC B/C B/S
3172521900 Medicaid MD -
J062 Other MD B/C B/S

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 specialty is Hyo Ahn?
Hyo Ahn is registered in NPPES with the primary taxonomy of Diagnostic Radiology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-07-20.