DR. MARIAN YVETTE WILLIAMS-BROWN (MD) – Gynecologic Oncology Physician, NPI 1861696460
Gynecologic Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,164 OBSTETRICS/GYNECOLOGY in TX
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Provider Addresses for DR. MARIAN YVETTE WILLIAMS-BROWN (MD)
7303, Kapok Lane, Barrington Oaks, Jollyville, Austin, Travis County, Texas, 78759, United States
AUSTIN, TX 787593735
Phone: (832) 291-4300
Type: Mailing
1313, Red River Street, Medical District, Austin, Travis County, Texas, 78701, United States
SUITE A1
AUSTIN, TX 787011943
Phone: (512) 324-7000
Type: Location
1601 TRINITY ST STOP 804
AUSTIN, TX 787121866
Phone: (512) 324-7865
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 13 Open Payments records for all available years, with a total value of $602.
Total Amount is formed as General ($602) + Research ($0) + Ownership ($0) = $602.
Last reported payment date: 2024-10-10 • Largest payer in this snapshot: BIOTISSUE HOLDINGS INC. ($115).
Total Amount
$602
General + Research + Ownership
Payments
13
Total payment records
General Amount
$602
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-10
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| BIOTISSUE HOLDINGS INC. | $115 |
| Stryker Corporation | $115 |
| SEAGEN INC. | $99 |
| GlaxoSmithKline, LLC. | $69 |
| Eisai Inc. | $48 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2009-08-06
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20090806000127 | I | Obstetrics/Gynecology | TX | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 78759)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Cardiac Electrophysiology | MS | |
| - | TX | |
| Infectious Disease | MI | |
| Internal Medicine | TX | |
| - | TX | |
| O B S T E T R I C S/ G Y N E C O L O G Y | TX | |
| - | TX | |
| D E R M A T O L O G Y | TX | |
| - | NY | |
| - | TX |
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