Dr Thomas S Parker, MD - Medicare Internal Medicine in San Marcos, TX

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Dr Thomas S Parker, MD is a medicare enrolled "Internal Medicine" physician in San Marcos, Texas. He went to University Of Texas Medical School At Houston and graduated in 1978 and has 47 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice South Texas Physician Services, Pllc and his current practice location is 1301 Wonder World Dr, San Marcos, Texas. You can reach out to his office (for appointments etc.) via phone at (512) 353-8979.

Dr Thomas S Parker is licensed to practice in Texas (license number F1884) 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 1962558056.

Contact Information

Dr Thomas S Parker, MD
1301 Wonder World Dr,
San Marcos, TX 78666-7533
(512) 353-8979
Not Available

Map and Direction




Physician's Profile

Full NameDr Thomas S Parker
GenderMale
SpecialityInternal Medicine
Experience47 Years
Location1301 Wonder World Dr, San Marcos, 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 Thomas S Parker attended and graduated from University Of Texas Medical School At Houston in 1978
  NPI Data:
  • NPI Number: 1962558056
  • Provider Enumeration Date: 01/25/2007
  • Last Update Date: 08/23/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 0941284897
  • Enrollment ID: I20040617000195

Medical Identifiers

Medical identifiers for Dr Thomas S Parker such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1962558056NPI-NPPES
0096NKOtherTXBCBS OF TX

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0000XInternal Medicine - Cardiovascular Disease F1884 (Texas)Secondary
207R00000XInternal Medicine F1884 (Texas)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Christus Santa Rosa Hospital-san MarcosSan marcos, TXHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
South Texas Physician Services, Pllc589014578347

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 Thomas S Parker allows following entities to bill medicare on his behalf.
Entity NameConcord Medical Group Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1083630610
PECOS PAC ID: 0446296818
Enrollment ID: O20050707000531
Entity NameVictoria Emergency Associates Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1407917164
PECOS PAC ID: 7911005087
Enrollment ID: O20070613000507
Entity NameVictoria Hospitalist Associates, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023236825
PECOS PAC ID: 6204927122
Enrollment ID: O20070807000680
Entity NameHni Medical Services
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1366735169
PECOS PAC ID: 6406028810
Enrollment ID: O20111031000750
Entity NameVictoria Emergency Partners Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1164770996
PECOS PAC ID: 7012165939
Enrollment ID: O20120919000322
Entity NameConcord Medical Group Of Texas Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1750790762
PECOS PAC ID: 7810117223
Enrollment ID: O20141007002567
Entity NameSouth Texas Physician Services, Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1598546772
PECOS PAC ID: 5890145783
Enrollment ID: O20231218003973

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 Thomas S Parker 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 Thomas S Parker, MD
200 Corporate Blvd,
Lafayette, LA 70508-3870

Ph: (800) 893-9698		Dr Thomas S Parker, MD
1301 Wonder World Dr,
San Marcos, TX 78666-7533

Ph: (512) 353-8979

Reviews and Comments


Internal Medicine Doctors in San Marcos, TX

Lance Monteau, M.D.
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 1290 Wonder World Dr Ste 1100, San Marcos, TX 78666
Phone: 512-393-3325    Fax: 512-393-3328
Dr. William K Deschner, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1305 Wonder World Dr, Suite 200, San Marcos, TX 78666
Phone: 512-754-8676    Fax: 512-754-8680
Frederick Earl Dixon, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 326 N Lbj Dr Ste 104, San Marcos, TX 78666
Phone: 512-572-1033    
Dr. Maria De Jesus Salinas, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1340 Wonder World Dr Ste 2203, San Marcos, TX 78666
Phone: 512-667-7123    Fax: 512-667-7328
Jose Mario Ayala, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1301 Wonder World Dr, San Marcos, TX 78666
Phone: 512-353-8979    
Carlos Enrique Zamora, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 2800 Airport, Hwy 21, San Marcos, TX 78666
Phone: 512-396-6513    
Dr. Carlos Neghme, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1305 Wonder World Dr, Suite 200, San Marcos, TX 78666
Phone: 512-754-8676    Fax: 512-754-8680

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.