Dr Margaret P Ellis, MD - Medicare Internal Medicine in Grove, OK

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Dr Margaret P Ellis, MD is a medicare enrolled "Internal Medicine" physician in Grove, Oklahoma. She went to University Of Texas Medical Branch At Galveston and graduated in 1994 and has 32 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice Northeastern Health System and her current practice location is 10 E 13th St, Grove, Oklahoma. You can reach out to her office (for appointments etc.) via phone at (918) 787-1909.

Dr Margaret P Ellis is licensed to practice in Oklahoma (license number 20200) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1649304114.

Contact Information

Dr Margaret P Ellis, MD
10 E 13th St,
Grove, OK 74344-5300
(918) 787-1909
(918) 787-3866

Map and Direction




Physician's Profile

Full NameDr Margaret P Ellis
GenderFemale
SpecialityInternal Medicine
Experience32 Years
Location10 E 13th St, Grove, Oklahoma
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Margaret P Ellis attended and graduated from University Of Texas Medical Branch At Galveston in 1994
  NPI Data:
  • NPI Number: 1649304114
  • Provider Enumeration Date: 03/15/2007
  • Last Update Date: 06/06/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 0244138105
  • Enrollment ID: I20100116000290

Medical Identifiers

Medical identifiers for Dr Margaret P Ellis such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1649304114NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine E-1953 (Arkansas)Secondary
207R00000XInternal Medicine 20200 (Oklahoma)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Northeastern Health SystemTahlequah, OKHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Northeastern Health System145625502598

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr Margaret P Ellis allows following entities to bill medicare on her behalf.
Entity NameIntegris Miami Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1912508375
PECOS PAC ID: 1254235468
Enrollment ID: O20031120000383
Entity NameNortheastern Health System
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1457574170
PECOS PAC ID: 1456255025
Enrollment ID: O20031125000250
Entity NameIntegris Grove Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1134720592
PECOS PAC ID: 0042105835
Enrollment ID: O20040219000842

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr Margaret P Ellis is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr Margaret P Ellis, MD
3001 Quail Springs Pkwy Fl 5,
Oklahoma City, OK 73134-2640

Ph: (918) 787-1909		Dr Margaret P Ellis, MD
10 E 13th St,
Grove, OK 74344-5300

Ph: (918) 787-1909

Reviews and Comments


Internal Medicine Doctors in Grove, OK

Mr. Paul Edward Callicoat Jr., MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 900 E 13th St, Suite 200, Grove, OK 74344
Phone: 918-786-7667    Fax: 918-786-7699
Dr. James B Chapman, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 900 E 13th St, Suite 200, Grove, OK 74344
Phone: 918-592-0999    Fax: 918-592-1021
Dr. Thomas E Riggs, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 29701 S 584 Way, Grove, OK 74344
Phone: 918-786-7169    
James Dull Rutter Iv, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 900 E 13th St, Suite 101, Grove, OK 74344
Phone: 918-786-9900    Fax: 918-786-9904

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.