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Elizabeth A. O Neill M.D., P.C.

Internal Medicine Physician in Amherst, NY · enumerated 2008 · authorized official Margie Law, Billing Manager.

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

National Provider Identifier

1184882755

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Registry record

Entity type Organization (Type 2)
Legal business name Elizabeth A. O Neill M.D., P.C.
Practice address 1412 Sweet Home Rd, Ste 4, Amherst, NY, 14228
Phone (716) 810-9030
Fax (716) 810-9033
Enumeration date May 29, 2008
Last updated in NPPES Jun 22, 2010

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 193863 (NY) Primary

Authorized official

Name Margie Law
Title Billing Manager
Phone (716) 656-0078

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

How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2010-06-22. Verify at npiregistry.cms.hhs.gov.
Where is Elizabeth A. O Neill M.D., P.C. located?
The practice location on file with NPPES is in Amherst, NY.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-06-22.