Dr Debra Williams, MD - Medicare Obstetrics/gynecology in San Antonio, TX

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Dr Debra Williams, MD is a medicare enrolled "Obstetrics & Gynecology" physician in San Antonio, Texas. She went to University Of Texas Medical Branch At Galveston and graduated in 1988 and has 36 years of diverse experience with area of expertise as Obstetrics/gynecology. She is a member of the group practice The Fort Defiance Indian Hospital Board, Incorporation and her current practice location is 502 Madison Oak Dr, Suite 440, San Antonio, Texas. You can reach out to her office (for appointments etc.) via phone at (210) 946-1300.

Dr Debra Williams is licensed to practice in Texas (license number H6707) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1609870930.

Contact Information

Dr Debra Williams, MD
502 Madison Oak Dr, Suite 440,
San Antonio, TX 78258-4084
(210) 946-1300
(210) 946-1700

Map and Direction




Physician's Profile

Full NameDr Debra Williams
GenderFemale
SpecialityObstetrics/gynecology
Experience36 Years
Location502 Madison Oak Dr, San Antonio, Texas
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Debra Williams attended and graduated from University Of Texas Medical Branch At Galveston in 1988
  NPI Data:
  • NPI Number: 1609870930
  • Provider Enumeration Date: 06/01/2005
  • Last Update Date: 11/03/2011
  Medicare PECOS Information:
  • PECOS PAC ID: 5799727681
  • Enrollment ID: I20090724000566

Medical Identifiers

Medical identifiers for Dr Debra Williams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1609870930NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207V00000XObstetrics & Gynecology H6707 (Texas)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Baptist Medical CenterSan antonio, TXHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
The Fort Defiance Indian Hospital Board, Incorporation0941336697144

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 Debra Williams allows following entities to bill medicare on her behalf.
Entity NameWomen Partners In Ob/gyn Llp
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1235167867
PECOS PAC ID: 1557350238
Enrollment ID: O20040507001204
Entity NameThe Fort Defiance Indian Hospital Board, Incorporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1477876639
PECOS PAC ID: 0941336697
Enrollment ID: O20100429001153

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 Debra Williams 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 Debra Williams, MD
502 Madison Oak Dr, Suite 440,
San Antonio, TX 78258-4084

Ph: (210) 946-1300		Dr Debra Williams, MD
502 Madison Oak Dr, Suite 440,
San Antonio, TX 78258-4084

Ph: (210) 946-1300

Reviews and Comments


Obstetrics & Gynecology Doctors in San Antonio, TX

Dr. Alexandriah Nicole Alas, M.D.
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Phone: 210-450-9500    Fax: 210-450-6027
Stephanie Schaefer, M.D.
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Practice Location: 525 Oak Centre Dr Ste 300, San Antonio, TX 78258
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James Paine, M.D.
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Phone: 210-257-1400    Fax: 210-257-1428
Dr. Lynn Tavares Parente, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 502 Madison Oak Dr Ste 240, San Antonio, TX 78258
Phone: 210-495-1900    Fax: 210-650-5975
Dr. Antonio Santillan-gomez, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 4411 Medical Dr, Ste. 100, San Antonio, TX 78229
Phone: 210-595-5300    Fax: 210-595-5301
Dr. Rorey Marie Walsh, M.D.
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 4502 Medical Dr, San Antonio, TX 78229
Phone: 210-616-8100    
Dr. Charles A Holshouser Jr., M.D.
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 4499 Medical Dr #183, San Antonio, TX 78229
Phone: 210-692-5200    Fax: 210-692-7725

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.