DR. DEBRA WILLIAMS MD
NPI 1609870930
Obstetrics & Gynecology in San Antonio, TX

Active since June 01, 2005PECOS EnrolledAccepts Medicare Assignment
502 MADISON OAK DR, SUITE 440, SAN ANTONIO, TX 78258(210) 946-1300(210) 946-1700 Get Directions Write a Review

NPPES record last updated: November 3, 2011. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Debra Williams Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. DEBRA WILLIAMS MD (NPI 1609870930) is an individual obstetrics & gynecology provider in San Antonio, Texas, licensed in Texas (H6707) and active in the NPI registry since June 2005. She is enrolled in Medicare PECOS and is a graduate of University Of Texas Medical Branch At Galveston (1988).

NPPES Registry Identity

NPI1609870930
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameDR. DEBRA WILLIAMSCredential: MD
Location Address502 MADISON OAK DR, SUITE 440San Antonio, TX 78258-4084
Mailing Address502 Madison Oak Dr, Suite 440San Antonio, TX 78258-4084 · (210) 946-1300 · Fax (210) 946-1700
Fax(210) 946-1700
Sole ProprietorNo
Medical School CMSUniversity Of Texas Medical Branch At GalvestonGraduated 1988
Enumeration DateJune 1, 2005
Last NPPES UpdateNovember 3, 2011
NPI 1609870930 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License Licensed in TX · H6707
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
502 MADISON OAK DR, San Antonio, TX 78258

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Debra Williams Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5799727681
PECOS Enrollment IDI20090724000566
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
13 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78258 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$126.40 typical visit price
range $54.84 – $166.88
Typical copayment $31.60 (range $13.71 – $41.72)
Most-billed visit code 99204
Established Patient
$68.55 typical visit price
range $17.52 – $136.11
Typical copayment $17.13 (range $4.38 – $34.02)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Obstetrics & Gynecology
502 MADISON OAK DR, SUITE 440
SAN ANTONIO, TX 78258
Otolaryngology
502 MADISON OAK DR, SUITE 140
SAN ANTONIO, TX 78258
Genetic Counselor, MS
502 MADISON OAK DR, SUITE 450
SAN ANTONIO, TX 78258
Thoracic Surgery (Cardiothoracic Vascular Surgery)
502 MADISON OAK DR, SUITE 160
SAN ANTONIO, TX 78258
Genetic Counselor, MS
502 MADISON OAK DR, SUITE 450
SAN ANTONIO, TX 78258
Obstetrics & Gynecology
502 MADISON OAK DR, SUITE 440
SAN ANTONIO, TX 78258
Psychiatry & Neurology (Neurology)
502 MADISON OAK DR, SUITE 320
SAN ANTONIO, TX 78258
Obstetrics & Gynecology
502 MADISON OAK DR, SUITE 440
SAN ANTONIO, TX 78258

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Debra Williams's NPI number?

The NPI number for Debra Williams is 1609870930. It was assigned to this individual provider in the NPPES registry on June 1, 2005.

Where is Debra Williams located?

Debra Williams practices at 502 Madison Oak Dr Suite 440, San Antonio, TX 78258. The listed phone number is (210) 946-1300.

What is Debra Williams's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Debra Williams enrolled in Medicare?

Yes. Debra Williams is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Debra Williams accept?

Health plans from Blue Cross Blue Shield of Arizona list Debra Williams as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Debra Williams was last updated on November 3, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.