Dr Margaret Mary Sullivan, MD - Medicare Cardiovascular Disease (cardiology) in Ennis, TX

Dr Margaret Mary Sullivan, MD is a medicare enrolled "Internal Medicine - Cardiovascular Disease" physician in Ennis, Texas. She went to University Of Texas Medical School At San Antonio and graduated in 2004 and has 20 years of diverse experience with area of expertise as Cardiovascular Disease (cardiology). Her current practice location is 802 W Lampasas St, Ennis, Texas. You can reach out to her office (for appointments etc.) via phone at (972) 875-4700.

Dr Margaret Mary Sullivan is licensed to practice in Texas (license number N5421) 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 1134330178.

Contact Information

Dr Margaret Mary Sullivan, MD
802 W Lampasas St,
Ennis, TX 75119-4536
(972) 875-4700
Not Available

Map and Direction




Physician's Profile

Full NameDr Margaret Mary Sullivan
GenderFemale
SpecialityCardiovascular Disease (cardiology)
Experience20 Years
Location802 W Lampasas St, Ennis, Texas
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 Mary Sullivan attended and graduated from University Of Texas Medical School At San Antonio in 2004
  NPI Data:
  • NPI Number: 1134330178
  • Provider Enumeration Date: 05/24/2007
  • Last Update Date: 08/16/2017
  Medicare PECOS Information:
  • PECOS PAC ID: 7416143367
  • Enrollment ID: I20101118000478

Medical Identifiers

Medical identifiers for Dr Margaret Mary Sullivan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1134330178NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0000XInternal Medicine - Cardiovascular Disease N5421 (Texas)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Ennis Regional Medical CenterEnnis, TXHospital
Baylor Scott & White Heart & Vascular Hospital - DallasDallas, TXHospital

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 Mary Sullivan allows following entities to bill medicare on her behalf.
Entity NameMeg Sullivan, M.d., Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1083924005
PECOS PAC ID: 6608062559
Enrollment ID: O20101118000451

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 Mary Sullivan 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 Mary Sullivan, MD
330 Seven Springs Way,
Brentwood, TN 37027-5098

Ph: (615) 920-7782
Dr Margaret Mary Sullivan, MD
802 W Lampasas St,
Ennis, TX 75119-4536

Ph: (972) 875-4700

Reviews and Comments


Internal Medicine Doctors in Ennis, TX

Dr. Ruby L. Anthony-white, MD
Cardiovascular Disease
Medicare: Not Enrolled in Medicare
Practice Location: 601 S Clay St, Suite 104, Ennis, TX 75119
Phone: 972-875-6600    Fax: 972-875-8776
Dr. Felicia Lenora Lewis, M.D.
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 2203 W Lampasas St, Ste 111, Ennis, TX 75119
Phone: 972-875-7770    Fax: 972-875-7775
Dr. Bryan Keith White, M.D.
Cardiovascular Disease
Medicare: Medicare Enrolled
Practice Location: 1200 S Hall St, Ennis, TX 75119
Phone: 541-799-4769    Fax: 972-502-9191
Larry A Jinks, MD
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 802 W Lampasas St, Ennis, TX 75119
Phone: 972-875-4700    Fax: 972-878-4527
Robert A Silverman, MD
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 802 W Lampasas St, Ennis, TX 75119
Phone: 972-875-4700    Fax: 972-878-4527
Dr. Keith Douglas Rigsby, MD
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 601 S Clay St, Suite 104, Ennis, TX 75119
Phone: 972-875-6600    

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).

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