Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Daniel Ein, MD

Allergy & Immunology Physician in Washington, DC · enumerated 2006.

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

National Provider Identifier

1225124332

Verified

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Registry record

Entity type Individual (Type 1)

Name Daniel Ein

Credential MD

Sex Male

Practice address 2300 M St Nw, Suite 200, Washington, DC, 20037

Phone (202) 741-2770

Enumeration date Oct 5, 2006

Last updated in NPPES Jun 27, 2013

Taxonomy & licenses

207K00000X Allergy & Immunology Physician Allopathic & Osteopathic Physicians · License MD5252 (DC) Primary

207K00000X Allergy & Immunology Physician Allopathic & Osteopathic Physicians · License D003742 (MD) Secondary

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
036461600	Medicaid	DC	—

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 Daniel Ein?

Daniel Ein is registered in NPPES with the primary taxonomy of Allergy & Immunology 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 2013-06-27.