Claudia Xiomara Ubinas Frias, MD - Medicare Hospitalist in San Antonio, TX

Claudia Xiomara Ubinas Frias, MD is a medicare enrolled "Internal Medicine" physician in San Antonio, Texas. She graduated from medical school in 2005 and has 19 years of diverse experience with area of expertise as Hospitalist. She is a member of the group practice Gmg Health Systems Associates Pa, South Texas Ancillary Services Ltd and her current practice location is 720 Pleasanton Rd, San Antonio, Texas. You can reach out to her office (for appointments etc.) via phone at (210) 921-3800.

Claudia Xiomara Ubinas Frias is licensed to practice in Texas (license number Q0375) 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 1215227392.

Contact Information

Claudia Xiomara Ubinas Frias, MD
720 Pleasanton Rd,
San Antonio, TX 78214-1343
(210) 921-3800
Not Available

Map and Direction




Physician's Profile

Full NameClaudia Xiomara Ubinas Frias
GenderFemale
SpecialityHospitalist
Experience19 Years
Location720 Pleasanton Rd, San Antonio, 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:
  • Claudia Xiomara Ubinas Frias graduated from medical school in 2005
  NPI Data:
  • NPI Number: 1215227392
  • Provider Enumeration Date: 04/11/2011
  • Last Update Date: 03/21/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 4789805664
  • Enrollment ID: I20141017000320

Medical Identifiers

Medical identifiers for Claudia Xiomara Ubinas Frias such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1215227392NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208M00000XHospitalist Q0375 (Texas)Secondary
207R00000XInternal Medicine Q0375 (Texas)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Gmg Health Systems Associates Pa8123932647100
South Texas Ancillary Services Ltd145667708727

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. Claudia Xiomara Ubinas Frias allows following entities to bill medicare on her behalf.
Entity NameGmg Health Systems Associates Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023030160
PECOS PAC ID: 8123932647
Enrollment ID: O20040121001049
Entity NameCogent Healthcare Of Texas Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1992722953
PECOS PAC ID: 8628076924
Enrollment ID: O20061121000364
Entity NameHospitalist Medicine Physicians Of Texas Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1629307095
PECOS PAC ID: 3476688318
Enrollment ID: O20100317001021
Entity NameSouth Texas Ancillary Services Ltd
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1063670289
PECOS PAC ID: 1456677087
Enrollment ID: O20150226000223

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. Claudia Xiomara Ubinas Frias 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
Claudia Xiomara Ubinas Frias, MD
720 Pleasanton Rd,
San Antonio, TX 78214-1343

Ph: (210) 921-3800
Claudia Xiomara Ubinas Frias, MD
720 Pleasanton Rd,
San Antonio, TX 78214-1343

Ph: (210) 921-3800

Reviews and Comments


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David H White, M.D.
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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.

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