Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Oliver Chen, M.D.

Diagnostic Radiology Physician in Hagerstown, MD · enumerated 2009.

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

National Provider Identifier

1164654158

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Registry record

Entity type Individual (Type 1)

Name Oliver Chen

Credential M.D.

Sex Male

Practice address 11110 Medical Campus Rd, Suite 204, Hagerstown, MD, 21742

Phone (301) 739-6147

Fax (301) 739-6163

Enumeration date Aug 10, 2009

Last updated in NPPES Mar 25, 2025

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 62645 (WI) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License MD456334 (PA) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 0101284848 (VA) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License D0080080 (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
745110500	Medicaid	MD	-

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 Oliver Chen?

Oliver Chen 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 2025-03-25.