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Dr. David Charles Oneil, M.D.,PH.D.

Internal Medicine Physician in Orchard Park, NY · enumerated 2006 · practices at David C. O'Neil, MD Phd, PC.

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

National Provider Identifier

1811926249

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Registry record

Entity type Individual (Type 1)
Name Dr. David Charles Oneil
Credential M.D.,PH.D.
Sex Male
Practice address 3755 Abbott Rd, Orchard Park, NY, 14127
Phone (716) 649-4454
Fax (716) 649-4794
Enumeration date Jun 30, 2006
Last updated in NPPES Jul 9, 2008

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 172109 (NY) Primary
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
BB4911 Medicaid NY -

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

Where does David Oneil practice?
The practice location on file with NPPES is in Orchard Park, NY. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for David Oneil?
The National Provider Identifier (NPI) for David Oneil is 1811926249, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-07-09.