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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Aileen L Chen, M.D.

Hematology & Oncology Physician in Holmdel, NJ · enumerated 2006.

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

National Provider Identifier

1194753350

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Registry record

Entity type Individual (Type 1)
Name Dr. Aileen L Chen
Credential M.D.
Sex Female
Practice address 723 N Beers St, 1e, Holmdel, NJ, 07733
Fax (732) 739-4438
Enumeration date Jun 28, 2006
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License 25MA08077100 (NJ) Primary
207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License 228326 (NY) Secondary
207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License A71695 (CA) Secondary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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.

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Frequently asked questions

What specialty is Aileen Chen?
Aileen Chen is registered in NPPES with the primary taxonomy of Hematology & Oncology 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 2007-07-08.