NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Casey J Geaney, M.D.

Clinical & Laboratory Immunology (Allergy & Immunology) Physician in Bethesda, MD · enumerated 2006.

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

National Provider Identifier

1235119389

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Registry record

Entity type Individual (Type 1)
Name Dr. Casey J Geaney
Credential M.D.
Sex Male
Practice address Wrnmmc, 8901 Rockville Pike, Bethesda, MD, 20889
Phone (301) 295-4511
Enumeration date Jan 17, 2006
Last updated in NPPES Feb 13, 2017

Taxonomy & licenses

207K00000X Allergy & Immunology Physician Allopathic & Osteopathic Physicians · License MD00037650 (WA) Secondary
207KI0005X Clinical & Laboratory Immunology (Allergy & Immunology) Physician Allopathic & Osteopathic Physicians · License MD27098 (OR) Primary
208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License MD00037650 (WA) Secondary
208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License MD27098 (OR) Secondary
2080P0201X Pediatric Allergy/Immunology Physician Allopathic & Osteopathic Physicians · License MD00037650 (WA) Secondary
2080P0201X Pediatric Allergy/Immunology Physician Allopathic & Osteopathic Physicians · License MD27098 (OR) 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
218154 Medicaid OR -

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 Casey Geaney?
Casey Geaney is registered in NPPES with the primary taxonomy of Clinical & Laboratory Immunology (Allergy & Immunology) 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 2017-02-13.