Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. David Lloyd Greenburg, M.D.

Ophthalmology Physician in Arnold, MD · enumerated 2006.

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

National Provider Identifier

1578534228

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Registry record

Entity type Individual (Type 1)

Name Dr. David Lloyd Greenburg

Credential M.D.

Sex Male

Practice address 83 Church Rd, Arnold, MD, 21012

Phone (410) 757-2778

Fax (410) 757-0632

Enumeration date Jan 31, 2006

Last updated in NPPES Oct 10, 2025

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 01012238406 (VA) Secondary

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License D0101692 (MD) Primary

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 0101238406 (VA) Secondary

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 2024-02400 (NC) 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 is the NPI number for David Greenburg?

The National Provider Identifier (NPI) for David Greenburg is 1578534228, a Type 1 (individual) record in the CMS NPPES registry.

Where does David Greenburg practice?

The practice location on file with NPPES is in Arnold, MD. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-10-10.