Owen S Maat, MD - Medicare Gastroenterology in Harlingen, TX

Owen S Maat, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Harlingen, Texas. He went to University Of Texas Medical Branch At Galveston and graduated in 1992 and has 32 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Gastroenterology Consultants Of South Texas, Pllc and his current practice location is 512 Victoria Ln Ste 2, Harlingen, Texas. You can reach out to his office (for appointments etc.) via phone at (956) 365-4400.

Owen S Maat is licensed to practice in Texas (license number J5609) 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 1295780609.

Contact Information

Owen S Maat, MD
512 Victoria Ln Ste 2,
Harlingen, TX 78550-3227
(956) 365-4400
(956) 365-4111

Map and Direction




Physician's Profile

Full NameOwen S Maat
GenderMale
SpecialityGastroenterology
Experience32 Years
Location512 Victoria Ln Ste 2, Harlingen, 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:
  • Owen S Maat attended and graduated from University Of Texas Medical Branch At Galveston in 1992
  NPI Data:
  • NPI Number: 1295780609
  • Provider Enumeration Date: 05/23/2006
  • Last Update Date: 11/14/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 5193784171
  • Enrollment ID: I20041006000031

Medical Identifiers

Medical identifiers for Owen S Maat such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1295780609NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology J5609 (Texas)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Harlingen Medical CenterHarlingen, TXHospital
Valley Regional Medical CenterBrownsville, TXHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Gastroenterology Consultants Of South Texas, Pllc327462493731

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. Owen S Maat allows following entities to bill medicare on his behalf.
Entity NameGastroenterology Consultants Of South Texas, Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1821127002
PECOS PAC ID: 3274624937
Enrollment ID: O20070809000340

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. Owen S Maat 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
Owen S Maat, MD
512 Victoria Ln Ste 2,
Harlingen, TX 78550-3227

Ph: (956) 365-4400
Owen S Maat, MD
512 Victoria Ln Ste 2,
Harlingen, TX 78550-3227

Ph: (956) 365-4400

Reviews and Comments


Internal Medicine Doctors in Harlingen, TX

Alfredo Garcia, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 1722 S Carolina St, Suite A, Harlingen, TX 78550
Phone: 956-365-4522    Fax: 956-365-4897
Dr. M. Shereef Hilmy Ii, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 2310 N. Ed Carey Drive, Suite 1a, Harlingen, TX 78550
Phone: 956-428-5522    Fax: 956-430-3400
Linda M Alexander, M.D.
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 2121 Pease St, Ste 3a, Harlingen, TX 78550
Phone: 956-359-1440    
Hector M Carmona, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 2102 Treasure Hills Blvd, Harlingen, TX 78550
Phone: 832-293-0177    
Dr. Robert L. Hatcher, M.D.
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 28528 S Palm Court Dr, Harlingen, TX 78552
Phone: 956-425-3098    
Mauro Silva, MD, MPH
Gastroenterology
Medicare: Medicare Enrolled
Practice Location: 512 Victoria Ln Ste 2, Harlingen, TX 78550
Phone: 956-365-4400    Fax: 956-365-4111
Ariana Barbosa,
Gastroenterology
Medicare: Medicare Enrolled
Practice Location: 1806 Runnels St, Harlingen, TX 78550
Phone: 956-230-3181    Fax: 956-230-3182

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.