Dr Sidney Charles Ontai, MD - Medicare General Practice in Victoria, TX

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Dr Sidney Charles Ontai, MD is a medicare enrolled "Family Medicine" physician in Victoria, Texas. He graduated from medical school in 1985 and has 39 years of diverse experience with area of expertise as General Practice. He is a member of the group practice Regional Employee Assistance Program Inc and his current practice location is 501 E Colorado St, Victoria, Texas. You can reach out to his office (for appointments etc.) via phone at (361) 579-8300.

Dr Sidney Charles Ontai is licensed to practice in Texas (license number K7364) 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 1225240443.

Contact Information

Dr Sidney Charles Ontai, MD
501 E Colorado St,
Victoria, TX 77901-6025
(361) 579-8300
(806) 579-8303

Map and Direction




Physician's Profile

Full NameDr Sidney Charles Ontai
GenderMale
SpecialityGeneral Practice
Experience39 Years
Location501 E Colorado St, Victoria, 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:
  • Dr Sidney Charles Ontai graduated from medical school in 1985
  NPI Data:
  • NPI Number: 1225240443
  • Provider Enumeration Date: 05/03/2007
  • Last Update Date: 08/27/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 9436047131
  • Enrollment ID: I20080129000661

Medical Identifiers

Medical identifiers for Dr Sidney Charles Ontai such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1225240443NPI-NPPES
018373301MedicaidTX
120737101OtherTXFIRSTCARE INSURANCE ID
8G8750OtherTXBCBS TX

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine K7364 (Texas)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
De Tar Hospital NavarroVictoria, TXHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Regional Employee Assistance Program Inc155726006488

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. Dr Sidney Charles Ontai allows following entities to bill medicare on his behalf.
Entity NameGulf Bend Mental Health Mental Retardation Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1467434399
PECOS PAC ID: 8628059631
Enrollment ID: O20040526000736
Entity NameRegional Employee Assistance Program Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1649232984
PECOS PAC ID: 1557260064
Enrollment ID: O20040612000731
Entity NamePlainview Foundation For Rural Health Advancement
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1215075734
PECOS PAC ID: 4284772914
Enrollment ID: O20091117000327

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. Dr Sidney Charles Ontai 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
Dr Sidney Charles Ontai, MD
501 E Colorado St,
Victoria, TX 77901-6025

Ph: (361) 579-8300		Dr Sidney Charles Ontai, MD
501 E Colorado St,
Victoria, TX 77901-6025

Ph: (361) 579-8300

Reviews and Comments


Family Medicine Doctors in Victoria, TX

Dr. Julia Shae Krause-castaneda, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 501 E Colorado St, Victoria, TX 77901
Phone: 361-579-8300    Fax: 361-579-8303
Pablo Garza, M.D.
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 2806 N Navarro St, Suite D, Victoria, TX 77901
Phone: 361-576-2108    Fax: 361-576-2277
Yasir Ahmed, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3414 Old Goliad Rd, Victoria, TX 77905
Phone: 757-753-1833    
Brian Xavier Contreras, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 605 E San Antonio St Ste 330e, Victoria, TX 77901
Phone: 361-576-9386    Fax: 361-576-9502
Jobeth Mcguill Whitlow, APRN
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 605 E Locust Ave, Victoria, TX 77901
Phone: 361-572-4300    
Orestes Romero, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 601 E San Antonio St, Ste 205 W, Victoria, TX 77901
Phone: 361-570-1200    
Dr. C Nevin Anderson Jr., MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 601 E San Antonio St Ste 203w, Victoria, TX 77901
Phone: 361-573-6371    Fax: 361-573-7961

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.