Debra Williams, MD
Obstetrics & Gynecology Physician · San Antonio, TX
Debra Williams, MD is an obstetrics & gynecology physician with a practice address in San Antonio, Texas, and NPI 1609870930, issued on Jun 1, 2005. Check the license (Texas H6707, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Debra Williams
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- H6707 TX
Self-reported in NPPES; status is on the state search - Practice location
- 502 Madison Oak Dr, San Antonio, TX 78258
- Phone
- (210) 946-1300
- Enumerated
- Jun 1, 2005
- Record last updated
- Nov 3, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (210) 946-1700
- Medicare enrollment
- Enrolled (PECOS I20090724000566); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical Branch At Galveston, 1988
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 3,524 in Texas → Look up another NPI →
Also registered at 502 Madison Oak Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jane Atkerson, MDObstetrics & Gynecology Physician1023098100
- Jennifer Boyer, OTR/LOccupational Therapist1437499555
- Laura Brannen, MDObstetrics & Gynecology Physician1326452152
- Leslie Bucheit, M.S., CGCGenetic Counselor (M.S.)1225464845
- Kali Chatham, M.S.Genetic Counselor (M.S.)1780958298
- Caiqian Cropper, MS, CGCGenetic Counselor (M.S.)1104201110
Verify Debra Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license H6707Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
19% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
134 Medicare Part D claims for 52 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Estradiol25 claims
- Valacyclovir19 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $12.70
1 payment: food and beverage; the largest payer was Meditrina. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- The Fort Defiance Indian Hospital Board, IncorporationFort Defiance, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Debra Williams among 3,524 obstetrics & gynecology physician records in Texas
Debra Williams, MD is one of 3,524 obstetrics & gynecology physician records with a practice address in Texas. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 85% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1988 · median 2005 among the 2,093 with a school on file
- Record last updated2011 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in Texas
There are 3,524 obstetrics & gynecology physician records in Texas.
All 3,524 in Texas → Every provider in San Antonio → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Alka Arya-Degaetano, D.O.San Antonio, TX 782581295737450
- Jane Atkerson, MDSan Antonio, TX 782581023098100
- Charles Bigler, M.D.San Antonio, TX 782581265466833
- Scott Farhart, M.D.San Antonio, TX 782581467470021
- Glen Feinstein, MDSan Antonio, TX 782581356322465
- Susan Novak, M.D.San Antonio, TX 782581720075021
- Lynn Parente, M.D.San Antonio, TX 782581003891110
- Christopher Serrano, MDSan Antonio, TX 782581740283886
Common questions
What is Debra Williams, MD's NPI number?
Debra Williams, MD's National Provider Identifier (NPI) is 1609870930, issued on Jun 1, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Debra Williams, MD located?
The NPPES record lists a practice address at 502 Madison Oak Dr, San Antonio, TX, 78258. Phone: (210) 946-1300. Providers update this record themselves, so call before visiting.
How can I verify Debra Williams, MD's license?
NPPES lists Texas license number H6707, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Debra Williams, MD prescribe under Medicare Part D?
In 2024, Debra Williams, MD had 134 Medicare Part D claims for 52 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.