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Dr. Margaret P Ellis, MD

Internal Medicine Physician in Grove, OK · enumerated 2007 · practices at Integris Grove Hospital.

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

National Provider Identifier

1649304114

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Registry record

Entity type Individual (Type 1)
Name Dr. Margaret P Ellis
Credential MD
Sex Female
Practice address 10 E 13th St, Grove, OK, 74344
Phone (918) 787-1909
Fax (918) 787-3866
Enumeration date Mar 15, 2007
Last updated in NPPES Jun 6, 2024

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License E-1953 (AR) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 20200 (OK) Primary
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 Margaret Ellis?
The National Provider Identifier (NPI) for Margaret Ellis is 1649304114, a Type 1 (individual) record in the CMS NPPES registry.
Where does Margaret Ellis practice?
The practice location on file with NPPES is in Grove, OK. 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 2024-06-06.