James Keith Baker, MD - Medicare Orthopedic Surgery in San Marcos, TX

James Keith Baker, MD is a medicare enrolled "Orthopaedic Surgery" physician in San Marcos, Texas. He went to Tulane University School Of Medicine and graduated in 1988 and has 36 years of diverse experience with area of expertise as Orthopedic Surgery. His current practice location is 1305 Wonder World Drive, Suite 100, San Marcos, Texas. You can reach out to his office (for appointments etc.) via phone at (512) 353-8658.

James Keith Baker is licensed to practice in Texas (license number M3153) 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 1457359952.

Contact Information

James Keith Baker, MD
1305 Wonder World Drive, Suite 100,
San Marcos, TX 78666-7502
(512) 353-8658
(512) 353-8533

Map and Direction




Physician's Profile

Full NameJames Keith Baker
GenderMale
SpecialityOrthopedic Surgery
Experience36 Years
Location1305 Wonder World Drive, 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:
  • James Keith Baker attended and graduated from Tulane University School Of Medicine in 1988
  NPI Data:
  • NPI Number: 1457359952
  • Provider Enumeration Date: 07/08/2005
  • Last Update Date: 01/28/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 1850306135
  • Enrollment ID: I20060207000887

Medical Identifiers

Medical identifiers for James Keith Baker such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1457359952NPI-NPPES
1138355MedicaidLA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207X00000XOrthopaedic Surgery M3153 (Texas)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Christus Santa Rosa Hospital-san MarcosSan marcos, 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. James Keith Baker allows following entities to bill medicare on his behalf.
Entity NameLone Star Orthopedics Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1851484463
PECOS PAC ID: 9436252756
Enrollment ID: O20070307000148

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. James Keith Baker 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
James Keith Baker, MD
1305 Wonder World Dr Ste 307,
San Marcos, TX 78666-7542

Ph: (512) 353-8658
James Keith Baker, MD
1305 Wonder World Drive, Suite 100,
San Marcos, TX 78666-7502

Ph: (512) 353-8658

Reviews and Comments


Orthopaedic Surgery Doctors in San Marcos, TX

John Robinson Jr., M.D.
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 1310 Wonder World Dr Ste 115, San Marcos, TX 78666
Phone: 512-878-4203    
Paul Ernest Jennings, M.D.
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 1601 Redwood Rd, Ste C, San Marcos, TX 78666
Phone: 512-353-8661    
Mark E Mcdonnell, DPM
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 1305 Wonder World Dr, Suite 100, San Marcos, TX 78666
Phone: 512-353-8661    Fax: 512-353-8355
Amanda Michelle Ivy, MD
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 1340 Wonder World Dr, Ste 4301, San Marcos, TX 78666
Phone: 512-353-6400    
Gerard M Pennington, MD
Orthopedic Surgery
Medicare: Not Enrolled in Medicare
Practice Location: 1305 Wonder World Dr, Suite 100, San Marcos, TX 78666
Phone: 512-353-8661    Fax: 512-353-8355

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.