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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Daniel E. Gelb, M.D.

Orthopaedic Surgery of the Spine Physician in Baltimore, MD · enumerated 2006.

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

National Provider Identifier

1538107677

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Registry record

Entity type Individual (Type 1)
Name Dr. Daniel E. Gelb
Credential M.D.
Sex Male
Practice address 22 S Greene St, Baltimore, MD, 21201
Phone (410) 328-5596
Fax (410) 328-7222
Enumeration date Jun 2, 2006
Last updated in NPPES Mar 19, 2008

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License D0058891 (MD) Secondary
207XS0106X Orthopaedic Hand Surgery Physician Allopathic & Osteopathic Physicians · License D0058891 (MD) Secondary
207XS0114X Adult Reconstructive Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License D0058891 (MD) Secondary
207XS0117X Orthopaedic Surgery of the Spine Physician Allopathic & Osteopathic Physicians · License D0058891 (MD) Primary
207XX0004X Orthopaedic Foot and Ankle Surgery Physician Allopathic & Osteopathic Physicians · License DOO58891 (MD) Secondary
207XX0005X Sports Medicine (Orthopaedic Surgery) Physician Allopathic & Osteopathic Physicians · License DOO58891 (MD) Secondary
207XX0801X Orthopaedic Trauma Physician Allopathic & Osteopathic Physicians · License DOO58891 (MD) Secondary
207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License D0058891 (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
1538107677 Other MD NPI

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

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.
What specialty is Daniel Gelb?
Daniel Gelb is registered in NPPES with the primary taxonomy of Orthopaedic Surgery of the Spine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-03-19.