Dr Gregory Brennan, MD - Medicare Gastroenterology in Mansfield, TX

Dr Gregory Brennan, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Mansfield, Texas. He went to Tufts University School Of Medicine and graduated in 2013 and has 11 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Texas Digestive Disease Consultants Pllc and his current practice location is 647 N Miller Rd Ste B, Mansfield, Texas. You can reach out to his office (for appointments etc.) via phone at (817) 760-7969.

Dr Gregory Brennan is licensed to practice in Texas (license number Q4044) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1689017105.

Contact Information

Dr Gregory Brennan, MD
647 N Miller Rd Ste B,
Mansfield, TX 76063-6180
(817) 760-7969
(817) 760-7976

Map and Direction




Physician's Profile

Full NameDr Gregory Brennan
GenderMale
SpecialityGastroenterology
Experience11 Years
Location647 N Miller Rd Ste B, Mansfield, Texas
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Gregory Brennan attended and graduated from Tufts University School Of Medicine in 2013
  NPI Data:
  • NPI Number: 1689017105
  • Provider Enumeration Date: 04/15/2013
  • Last Update Date: 08/25/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 2466737259
  • Enrollment ID: I20190729000813

Medical Identifiers

Medical identifiers for Dr Gregory Brennan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1689017105NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology Q4044 (Texas)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Methodist Mansfield Medical CenterMansfield, TXHospital
Medical City ArlingtonArlington, TXHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Texas Digestive Disease Consultants Pllc3375531379544

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 Gregory Brennan allows following entities to bill medicare on his behalf.
Entity NameTexas Digestive Disease Consultants Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1053397331
PECOS PAC ID: 3375531379
Enrollment ID: O20040505001844

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 Gregory Brennan 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 Gregory Brennan, MD
Po Box 35629,
Dallas, TX 75235-0629

Ph: (214) 424-2213
Dr Gregory Brennan, MD
647 N Miller Rd Ste B,
Mansfield, TX 76063-6180

Ph: (817) 760-7969

Reviews and Comments


Internal Medicine Doctors in Mansfield, TX

Gretchen M Bures, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 2700 E Broad St, Mansfield, TX 76063
Phone: 682-242-2000    
Dr. Khuong Dinh Phan, D.O.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 920 Highway 287 N, Suite 308, Mansfield, TX 76063
Phone: 817-473-7197    Fax: 817-473-7198
Dr. John Ira Thurmond, MD.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 1011 Matlock Rd, Mansfield, TX 76063
Phone: 817-225-6888    Fax: 817-377-6570
Michael G Mcinnis, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 252 Matlock Rd, Suite 130, Mansfield, TX 76063
Phone: 817-473-7184    Fax: 817-473-7186
Dr. Magdalene Maria Szuszkiewicz-garcia, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 2251 Country Club Drive, Ste 131, Mansfield, TX 76063
Phone: 682-518-1100    Fax: 682-518-1104
Theophilus Tolulope Ogungbamigbe, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 1302 Bankston Ln, Mansfield, TX 76063
Phone: 785-354-9591    
Hiral Vishal Thakkar, DO
Gastroenterology
Medicare: Medicare Enrolled
Practice Location: 2700 E Broad St, Mansfield, TX 76063
Phone: 682-242-2000    

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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