Tres Barrera, MD - Medicare Endocrinology in Round Rock, TX

Tres Barrera, MD is a medicare enrolled "Internal Medicine - Endocrinology, Diabetes & Metabolism" physician in Round Rock, Texas. He went to University Of Texas Medical School At Houston and graduated in 2006 and has 18 years of diverse experience with area of expertise as Endocrinology. He is a member of the group practice Scott And White Clinic and his current practice location is 425 University Blvd, Round Rock, Texas. You can reach out to his office (for appointments etc.) via phone at (512) 509-0200.

Tres Barrera is licensed to practice in Texas (license number N2932) 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 1942356522.

Contact Information

Tres Barrera, MD
425 University Blvd,
Round Rock, TX 78665-1053
(512) 509-0200
(512) 509-3479

Map and Direction




Physician's Profile

Full NameTres Barrera
GenderMale
SpecialityEndocrinology
Experience18 Years
Location425 University Blvd, Round Rock, 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:
  • Tres Barrera attended and graduated from University Of Texas Medical School At Houston in 2006
  NPI Data:
  • NPI Number: 1942356522
  • Provider Enumeration Date: 01/26/2007
  • Last Update Date: 12/07/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 1759559453
  • Enrollment ID: I20110725000442

Medical Identifiers

Medical identifiers for Tres Barrera such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1942356522NPI-NPPES
2828816-01MedicaidTX
TXB130838OtherTXPTAN

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RE0101XInternal Medicine - Endocrinology, Diabetes & Metabolism N2932 (Texas)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Baylor Scott & White Medical Center - Round RockRound rock, TXHospital
Baylor Scott & White Pavilion - TempleTemple, TXHospital
Baylor Scott & White Medical Center - TaylorTaylor, TXHospital
Baylor Scott & White Medical Center PflugervillePflugerville, TXHospital
Baylor Scott & White Medical Center - Marble FallsMarble falls, TXHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Scott And White Clinic81239236042131

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. Tres Barrera allows following entities to bill medicare on his behalf.
Entity NameScott & White Clinic
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1093779704
PECOS PAC ID: 8123923604
Enrollment ID: O20031223000640

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. Tres Barrera 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
Tres Barrera, MD
Po Box 844658,
Dallas, TX 75284-4658

Ph: () -
Tres Barrera, MD
425 University Blvd,
Round Rock, TX 78665-1053

Ph: (512) 509-0200

Reviews and Comments


Internal Medicine Doctors in Round Rock, TX

Dr. Vivian Cline, MD
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Phone: 512-687-2300    Fax: 512-687-2350
Dr. Ahmed Nezar Shobassy, M.D.
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Phone: 512-509-0200    Fax: 512-509-2229
Vu Nguyen,
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Practice Location: 302 University Blvd, Round Rock, TX 78665
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Dr. Glenn Robinson, M.D.
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Phone: 512-244-2273    Fax: 512-244-3179
Dr. Rafael Eduardo Gonzalez, M.D.
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 302 University Blvd, Round Rock, TX 78665
Phone: 512-509-0200    Fax: 512-218-6330
Dinkar Rupakula, MBBS
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 425 University Blvd, Round Rock, TX 78665
Phone: 512-509-0200    Fax: 512-509-0285
Sayf Yassin, M.D.
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 201 Seton Pkwy, Round Rock, TX 78665
Phone: 512-324-4170    

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.