Internal Medicine Doctors in San Marcos, TX Accepting Medicare

34 Internal Medicine doctors found. Showing 1 - 20
male doctor icon
Lance Monteau, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1290 Wonder World Dr Ste 1100, San Marcos, TX 78666
Phone: 512-393-3325    Fax: 512-393-3328
male doctor icon
Dr. William K Deschner, M.D.
Internal Medicine - Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 1305 Wonder World Dr, Suite 200, San Marcos, TX 78666
Phone: 512-754-8676    Fax: 512-754-8680
male doctor icon
Frederick Earl Dixon, MD
Internal Medicine - Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 326 N Lbj Dr Ste 104, San Marcos, TX 78666
Phone: 512-572-1033    
male doctor icon
Jose Mario Ayala, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1301 Wonder World Dr, San Marcos, TX 78666
Phone: 512-353-8979    
male doctor icon
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    
male doctor icon
Dr. Carlos Neghme, M.D.
Internal Medicine - Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 1305 Wonder World Dr, Suite 200, San Marcos, TX 78666
Phone: 512-754-8676    Fax: 512-754-8680
female doctor icon
Mrs. Gladys C Weng, D.O.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1320 Wonder World Dr, 101, San Marcos, TX 78666
Phone: 512-396-3911    Fax: 512-353-8052
female doctor icon
Ellen M. Grimm, MD
Internal Medicine - Nephrology
Medicare: Accepting Medicare Assignments
Practice Location: 1330 Wonder World Dr, San Marcos, TX 78666
Phone: 512-805-0680    Fax: 512-805-0682
male doctor icon
Ryan Hall,
Internal Medicine - Rheumatology
Medicare: Medicare Enrolled
Practice Location: 1340 Wonder World Dr Ste 2203, San Marcos, TX 78666
Phone: 512-667-7123    
male doctor icon
Cody A Nichols, M.D.
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 1305 Wonder World Dr Ste 306, San Marcos, TX 78666
Phone: 512-396-1000    Fax: 512-353-2554
female doctor icon
Qing Ren, M.D.
Internal Medicine - Nephrology
Medicare: Accepting Medicare Assignments
Practice Location: 1330 Wonder World Dr Ste 101, San Marcos, TX 78666
Phone: 512-805-0680    Fax: 512-805-0682
male doctor icon
Mr. Jesus Najib Sahad, M.D.
Internal Medicine - Pulmonary Disease
Medicare: Accepting Medicare Assignments
Practice Location: 1305 Wonder World Dr, Ste 209, San Marcos, TX 78666
Phone: 512-353-6400    Fax: 512-353-3039
male doctor icon
Rubin Harris, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1301 Wonder World Dr, San Marcos, TX 78666
Phone: 512-342-0455    Fax: 512-342-0460
male doctor icon
Dr. Gregory Keith Moore, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 601 Leah Ave, San Marcos, TX 78666
Phone: 512-396-1000    Fax: 512-353-2554
male doctor icon
Dr. Boguslaw Godlewski, MD
Internal Medicine - Cardiovascular Disease
Medicare: Not Enrolled in Medicare
Practice Location: 1330 Wonder World Dr, Ste B108, San Marcos, TX 78666
Phone: 512-396-5603    Fax: 512-396-5623
female doctor icon
Billie Karen Martin, PA
Internal Medicine - Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 1330 Wonder World Dr, Ste B108, San Marcos, TX 78666
Phone: 512-396-5603    Fax: 512-396-5623
male doctor icon
Steven Pearce, M.D.
Internal Medicine - Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 1305 Wonder World Dr, Ste 200, San Marcos, TX 78666
Phone: 512-754-8676    Fax: 512-371-6891
male doctor icon
Dr. Shannon Marek, 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
male doctor icon
Michael John Benca, MD
Internal Medicine - Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 1340 Wonder World Dr Ste 4301, San Marcos, TX 78666
Phone: 512-353-6400    Fax: 512-353-3039
male doctor icon
Dr. Thomas Kepczyk, M.D.
Internal Medicine - Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 1305 Wonder World Dr, Suite 200, San Marcos, TX 78666
Phone: 512-754-8676    Fax: 512-754-8680
  • 1(current)
  • 2

Internal Medicine: A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.


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.