Oscar Alberto Iznaola -esquivel, MD - Medicare Internal Medicine in San Antonio, TX

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Oscar Alberto Iznaola -esquivel, MD is a medicare enrolled "Internal Medicine - Nephrology" physician in San Antonio, Texas. He graduated from medical school in 2000 and has 24 years of diverse experience with area of expertise as Internal Medicine. His current practice location is 1141 N Loop 1604 E, 105-434, San Antonio, Texas. You can reach out to his office (for appointments etc.) via phone at (361) 239-2851.

Oscar Alberto Iznaola -esquivel is licensed to practice in Texas (license number N2126) and he also participates in the medicare program. He may accept medicare assignments (which means he may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance) and his NPI Number is 1699968560.

Contact Information

Oscar Alberto Iznaola -esquivel, MD
1141 N Loop 1604 E, 105-434,
San Antonio, TX 78232-1339
(361) 239-2851
Not Available

Map and Direction




Physician's Profile

Full NameOscar Alberto Iznaola -esquivel
GenderMale
SpecialityInternal Medicine
Experience24 Years
Location1141 N Loop 1604 E, San Antonio, Texas
Accepts Medicare AssignmentsMay be. He may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Oscar Alberto Iznaola -esquivel graduated from medical school in 2000
  NPI Data:
  • NPI Number: 1699968560
  • Provider Enumeration Date: 08/23/2007
  • Last Update Date: 03/06/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 1254485089
  • Enrollment ID: I20090813000461

Medical Identifiers

Medical identifiers for Oscar Alberto Iznaola -esquivel such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1699968560NPI-NPPES
207474204MedicaidTX

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0300XInternal Medicine - Geriatric Medicine N2126 (Texas)Secondary
390200000XStudent In An Organized Health Care Education/training Program BP30027810 (Texas)Secondary
207RN0300XInternal Medicine - Nephrology N2126 (Texas)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Kidney Treatment Center San Antonio IncSan antonio, TXDialysis facility
Kidney Treatment Center Northwest PaSan antonio, TXDialysis facility
Downtown San Antonio DialysisSan antonio, TXDialysis facility
Baptist Medical CenterSan antonio, TXHospital
Methodist HospitalSan antonio, TXHospital

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. Oscar Alberto Iznaola -esquivel allows following entities to bill medicare on his behalf.
Entity NameRobert G. Szewc, M.d., P.a.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1366599888
PECOS PAC ID: 2365339751
Enrollment ID: O20040301001024
Entity NameC H Wilkinson Physician Network
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1457382947
PECOS PAC ID: 8921919580
Enrollment ID: O20041203000584
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 NameVictoria Hospitalist Associates, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023236825
PECOS PAC ID: 6204927122
Enrollment ID: O20070807000680
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 NameCitizens Medical Center County Of Victoria
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1205242088
PECOS PAC ID: 3577785096
Enrollment ID: O20141117000499
Entity NameOscar Iznaola Md Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1649674953
PECOS PAC ID: 9133432354
Enrollment ID: O20150716003296
Entity NameHospitalist Medicine Physicians Of Texas San Marcos Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1598244774
PECOS PAC ID: 2961754817
Enrollment ID: O20181004001119
Entity NameHospitalist Medicine Physicians Of Texas - San Antonio Vi, Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1225516719
PECOS PAC ID: 0143573162
Enrollment ID: O20181022001148

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. Oscar Alberto Iznaola -esquivel 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
Oscar Alberto Iznaola -esquivel, MD
1141 N Loop 1604 E, 105-434,
San Antonio, TX 78232-1339

Ph: (361) 239-2851		Oscar Alberto Iznaola -esquivel, MD
1141 N Loop 1604 E, 105-434,
San Antonio, TX 78232-1339

Ph: (361) 239-2851

Reviews and Comments


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Socrates B Aramburu, MD
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David H White, M.D.
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Phone: 210-616-0801    

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.