Mario E Ruiz, MD - Medicare Diagnostic Radiology in San Antonio, TX

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Mario E Ruiz, MD is a medicare enrolled "Radiology - Pediatric Radiology" physician in San Antonio, Texas. He graduated from medical school in 1984 and has 42 years of diverse experience with area of expertise as Diagnostic Radiology. He is a member of the group practice Singleton Associates Pa, Valley Radiologists And Associates, Rfc Radiology Associates Llc and his current practice location is 18126 Prestonshire, San Antonio, Texas. You can reach out to his office (for appointments etc.) via phone at (210) 844-7575.

Mario E Ruiz is licensed to practice in Texas (license number K1917) 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 1174569842.

Contact Information

Mario E Ruiz, MD
18126 Prestonshire,
San Antonio, TX 78258-4473
(210) 844-7575
(210) 493-8297

Map and Direction




Physician's Profile

Full NameMario E Ruiz
GenderMale
SpecialityDiagnostic Radiology
Experience42 Years
Location18126 Prestonshire, San Antonio, 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:
  • Mario E Ruiz graduated from medical school in 1984
  NPI Data:
  • NPI Number: 1174569842
  • Provider Enumeration Date: 06/21/2006
  • Last Update Date: 09/14/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 9931181773
  • Enrollment ID: I20040604000178

Medical Identifiers

Medical identifiers for Mario E Ruiz such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1174569842NPI-NPPES
117724806MedicaidTX

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2085P0229XRadiology - Pediatric Radiology K1917 (Texas)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
South Texas Health System BehavioralEdinburg, TXHospital
Connally Memorial Medical CenterFloresville, TXHospital
Vhs Harlingen Hospital Company LlcHarlingen, TXHospital
Valley Baptist Medical Center- BrownsvilleBrownsville, TXHospital
Hemphill County HospitalCanadian, TXHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Singleton Associates Pa6305731118814
Valley Radiologists And Associates509279864512
Rfc Radiology Associates Llc802214189433

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. Mario E Ruiz allows following entities to bill medicare on his behalf.
Entity NameSingleton Associates PA
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1538107875
PECOS PAC ID: 6305731118
Enrollment ID: O20040315000385
Entity NameUniversity of Texas Health Science Center at San Antonio
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1720051717
PECOS PAC ID: 0042128548
Enrollment ID: O20040607000664
Entity NameEdinburg Radiology, LLP
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1982827150
PECOS PAC ID: 6305866567
Enrollment ID: O20051202000082
Entity NameRfc Radiology Associates LLC
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1437478302
PECOS PAC ID: 8022141894
Enrollment ID: O20100730000058
Entity NameUniversity of Texas Rio Grande Valley
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1477960730
PECOS PAC ID: 3577885276
Enrollment ID: O20141209000376

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. Mario E Ruiz 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
Mario E Ruiz, MD
18126 Prestonshire,
San Antonio, TX 78258-4473

Ph: (210) 844-7575		Mario E Ruiz, MD
18126 Prestonshire,
San Antonio, TX 78258-4473

Ph: (210) 844-7575

Reviews and Comments


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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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