Warren Leonard, MD
Listed as an allergist, with a practice address in Bethesda, Maryland.
Practice location 1
9000 Rockville Pike Rm 7B05
Bethesda, MD 20892
From the records
- Specialty
- Allergist
- Records
- National provider registry only, updated September 2026.
- Registry record
- Last updated September 2026
- NPI
- 1952213498 (national provider registry)
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From CMS’s Doctors and Clinicians file (October 2026) and the national provider registry, NPPES (October 2026). Listings are free and in alphabetical order; we don’t rate or recommend doctors. How we list doctors