Margaret Ellis, MD
NPI 1649304114 · Internal Medicine Physician · Grove, OK
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Ellis, MD is a Internal Medicine Physician provider in Grove, OK (NPI 1649304114).
Provider details
- NPI number
- 1649304114
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- E-1953 (AR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (2)
- 21 W Central AveMiami, OK 74354-6815Phone: (918) 542-3900Fax: (918) 542-3928
- 216 S 7th StVinita, OK 74301-3742Phone: (918) 256-1500Fax: (918) 323-0460
Registry dates
- Enumerated
- 2007-03-15
- Last updated
- 2024-06-06
- Certified
- 2024-06-06
Frequently asked questions
- What is Margaret Ellis's NPI number?
- Margaret Ellis's National Provider Identifier (NPI) is 1649304114, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Ellis's specialty?
- Margaret Ellis is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Margaret Ellis located?
- Margaret Ellis's practice location on file with NPPES is 10 E 13th St, Grove, OK 74344-5300.
- What is Margaret Ellis's phone number?
- The practice phone number listed in the NPPES registry for Margaret Ellis is (918) 787-1909.
- Does Margaret Ellis accept Medicare?
- Margaret Ellis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Ellis's NPI active?
- Yes — Margaret Ellis's NPI (1649304114) is active in the NPPES registry as of the last update on 2024-06-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.