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REBECCA LYNN WILLIAMS PHD
NPI 1538509294
Surgery in Madison, WI

Active since June 26, 2013PECOS EnrolledAccepts Medicare Assignment
94.1/100
CMS Quality Rating
2905 COMMERCIAL AVE APT 2, MADISON, WI 53704(608) 242-2888 Get Directions Write a Review

NPPES record last updated: January 11, 2024. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 15, 2023, Oct 20, 2022, Aug 30, 2022 (3 updates tracked since 2022).

About Rebecca Lynn Williams Phd NPPES

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

REBECCA LYNN WILLIAMS PHD (NPI 1538509294) is an individual surgery provider in Madison, Wisconsin, licensed in Wisconsin (77226-20) and active in the NPI registry since June 2013. She is enrolled in Medicare PECOS, is affiliated with Northwestern Lake Forest Hospital, and is a graduate of Oregon Health Sciences University School Of Medicine (2015).

NPPES Registry Identity

NPI1538509294
Entity TypeIndividualFemale
Primary Taxonomy208600000X
Provider Legal NameREBECCA LYNN WILLIAMSCredential: PHD
Location Address2905 COMMERCIAL AVE APT 2Madison, WI 53704-4855
Mailing Address2905 Commercial Ave Apt 2Madison, WI 53704-4855
Phone(608) 242-2888
Sole ProprietorNo
Medical School CMSOregon Health Sciences University School Of MedicineGraduated 2015
Enumeration DateJune 26, 2013
Last NPPES UpdateJanuary 11, 20243 updates tracked since enumeration
NPPES CertifiedJanuary 11, 2024
✔ NPI 1538509294 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in WI · 77226-20
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
Also ListedSurgery · Surgical OncologyTaxonomy 2086X0206X · License 036165097 (IL)
2905 COMMERCIAL AVE APT 2, Madison, WI 53704
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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

Rebecca Lynn Williams Phd 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 ID2466766811
PECOS Enrollment IDI20231108000851
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 3

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.

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
70 services70 patients
Fine needle aspiration biopsy using ultrasound guidance, first growth 10005
Fine needle aspiration biopsy with ultrasound guidance is a procedure where a thin needle is inserted into a growth to extract a small sample. Ultrasound helps accurately locate the growth. This sample is then analyzed to determine the nature of the growth.
41 services41 patients
Fine needle aspiration biopsy using ultrasound guidance, each additional growth 10006
A fine needle aspiration biopsy with ultrasound guidance is a procedure where a thin needle is used to collect cells from a growth. Ultrasound helps accurately locate the growth. If there's more than one growth, each one is biopsied separately.
14 services12 patients

Hospital Affiliations CMS Care Compare 2

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

Northwestern Lake Forest Hospital

Acute Care Hospitals · Lake Forest, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number140130
Location1000 N Westmoreland RoadLake Forest, IL 60045 · Lake County
Emergency services Birthing friendly

Northwestern Memorial Hospital

Acute Care Hospitals · Chicago, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140281
Location251 E Huron StChicago, IL 60611 · Cook County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53704 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
$82.92 typical visit price
range $53.90 – $163.24
Typical copayment $20.73 (range $13.47 – $40.81)
Most-billed visit code 99203
Established Patient
$67.37 typical visit price
range $17.40 – $133.76
Typical copayment $16.84 (range $4.35 – $33.44)
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.

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.

94.1/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality82.59
Promoting Interoperability100
Improvement Activities40

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 Rebecca Williams's NPI number?

The NPI number for Rebecca Williams is 1538509294. It was assigned to this individual provider in the NPPES registry on June 26, 2013.

Where is Rebecca Williams located?

Rebecca Williams practices at 2905 Commercial Ave Apt 2, Madison, WI 53704. The listed phone number is (608) 242-2888.

What is Rebecca Williams's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Rebecca Williams enrolled in Medicare?

Yes. Rebecca 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.

Is Rebecca Williams affiliated with any hospitals?

According to CMS data, Rebecca Williams is affiliated with Northwestern Lake Forest Hospital and Northwestern Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Rebecca Williams was last updated on January 11, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.