DR. MARIAN YVETTE WILLIAMS-BROWN MD
NPI 1861696460
Obstetrics & Gynecology - Gynecologic Oncology in Austin, TX

Active since June 14, 2007PECOS EnrolledAccepts Medicare Assignment
71.53/100
CMS Quality Rating
1601 TRINITY ST STOP 804, AUSTIN, TX 78712(512) 324-7865 Get Directions Write a Review

NPPES record last updated: January 15, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Sep 30, 2022, Oct 30, 2016 (2 updates tracked since 2016).

About Dr. Marian Yvette Williams-brown Md NPPES

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

DR. MARIAN YVETTE WILLIAMS-BROWN MD (NPI 1861696460) is an individual gynecologic oncology provider in Austin, Texas, licensed in Texas (N0554) and active in the NPI registry since June 2007. She is enrolled in Medicare PECOS, is affiliated with Ascension Seton Medical Center Austin, and is a graduate of Tulane University School Of Medicine (2004).

NPPES Registry Identity

NPI1861696460
Entity TypeIndividualFemale
Primary Taxonomy207VX0201X
Provider Legal NameDR. MARIAN YVETTE WILLIAMS-BROWNCredential: MD
Location Address1601 TRINITY ST STOP 804Austin, TX 78712-1866
Mailing Address7303 Kapok LnAustin, TX 78759-3735 · (832) 291-4300
Sole ProprietorNo
Medical School CMSTulane University School Of MedicineGraduated 2004
Enumeration DateJune 14, 2007
Last NPPES UpdateJanuary 15, 20252 updates tracked since enumeration
NPPES CertifiedJanuary 15, 2025
NPI 1861696460 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyObstetrics & Gynecology · Gynecologic OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207VX0201X
License Licensed in TX · N0554
Definition
An obstetrician/gynecologist who provides consultation and comprehensive management of patients with gynecologic cancer, including those diagnostic and therapeutic procedures necessary for the total care of the patient with gynecologic cancer and resulting complications.
Also ListedObstetrics & GynecologyTaxonomy 207V00000X · License N0554 (TX)
1601 TRINITY ST STOP 804, Austin, TX 78712

Other Names 1

Former Name (1)Dr. Marian Yvette Williams Md

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. Marian Yvette Williams-brown 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 ID9537212642
PECOS Enrollment IDI20090806000127
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.

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Ascension Seton Medical Center Austin

Acute Care Hospitals · Austin, TX
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450056
Location1201 W 38th StAustin, TX 78705 · Travis County
Emergency services Birthing friendly

Dell Seton Med Center At The University Of Tx

Acute Care Hospitals · Austin, TX
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450124
Location601 E 15th StreetAustin, TX 78701 · Travis County

Ascension Seton Hays

Acute Care Hospitals · Kyle, TX
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number670056
Location6001 Kyle PkwyKyle, TX 78640 · Hays County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78712 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
$174.00 typical visit price
range $57.88 – $174.00
Typical copayment $43.50 (range $14.47 – $43.50)
Most-billed visit code 99205
Established Patient
$101.65 typical visit price
range $18.88 – $142.23
Typical copayment $25.41 (range $4.72 – $35.55)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

71.53/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality64.85
Improvement Activities40
Cost69.55

Reported Quality Measures

Breast Cancer Screening
8%53 patients1/55-star benchmark: 93%
Cervical Cancer Screening
3%73 patients1/55-star benchmark: 98%
Colorectal Cancer Screening
23%83 patients2/55-star benchmark: 88%
Documentation of Current Medications in the Medical Record
0%642 patients1/55-star benchmark: 100%
Falls: Screening for Future Fall Risk
4%27 patients1/55-star benchmark: 100%
HIV Screening
1%150 patients1/55-star benchmark: 60%
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan
6%139 patients1/55-star benchmark: 98%
Preventive Care and Screening: Screening for Depression and Follow-Up Plan
5%148 patients1/55-star benchmark: 97%
Preventive Care and Screening: Screening for High Blood Pressure and Follow-Up Documented
0%509 patients1/55-star benchmark: 61%
Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention
Patients screened: 16% · 180 patients
16%180 patients
Statin Therapy for the Prevention and Treatment of Cardiovascular Disease
41%22 patients1/55-star benchmark: 91%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Hospital bed, semi-electric (head and foot adjustment), with any type side rails, with mattress E0260
DME-Hospital Beds · category DB000N
1 supplier12 claims12 services$42.02 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 3

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

Registered Nurse (Oncology)
1601 TRINITY ST STOP 804
AUSTIN, TX 78712
Internal Medicine (Medical Oncology)
1601 TRINITY ST STOP 804
AUSTIN, TX 78712
Nurse Practitioner
1601 TRINITY ST STOP 804
AUSTIN, TX 78712

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 Marian Williams-brown's NPI number?

The NPI number for Marian Williams-brown is 1861696460. It was assigned to this individual provider in the NPPES registry on June 14, 2007. The provider is also known as Dr. Marian Yvette Williams MD.

Where is Marian Williams-brown located?

Marian Williams-brown practices at 1601 Trinity St Stop 804, Austin, TX 78712. The listed phone number is (512) 324-7865.

What is Marian Williams-brown's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Gynecologic Oncology, with taxonomy code 207VX0201X.

Is Marian Williams-brown enrolled in Medicare?

Yes. Marian Williams-brown 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 Marian Williams-brown accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 3 other insurers list Marian Williams-brown 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.

Is Marian Williams-brown affiliated with any hospitals?

According to CMS data, Marian Williams-brown is affiliated with Ascension Seton Medical Center Austin, Dell Seton Med Center At The University Of Tx and Ascension Seton Hays.

When was this NPI record last updated?

The NPPES record for Marian Williams-brown was last updated on January 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months 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.