DR. SARA RUDDOCK-WALKER M.D.
NPI 1558711101
Hospitalist in Winfield, IL

Q: What is Sara Ruddock-walker's NPI number?

The NPI number for Sara Ruddock-walker is 1558711101. It was assigned to this individual provider in the NPPES registry on June 14, 2016.

Q: What is Sara Ruddock-walker's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Active since June 14, 2016PECOS EnrolledAccepts Medicare Assignment

25 N WINFIELD RD, WINFIELD, IL 60190(630) 933-4700(630) 933-4427 Get Directions Write a Review

NPPES record last updated: February 18, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 3, 2020, Jun 16, 2020, Jun 14, 2016 (3 updates tracked since 2016).

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About Dr. Sara Ruddock-walker M.d. NPPES

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

DR. SARA RUDDOCK-WALKER M.D. (NPI 1558711101) is an individual hospitalist provider in Winfield, Illinois, licensed in Illinois (036151710) and active in the NPI registry since June 2016. She is enrolled in Medicare PECOS, is affiliated with Rush University Medical Center, and is a graduate of Loyola University Of Chicago, Stritch School Of Medicine (2016).

NPPES Registry Identity

NPI1558711101

Entity TypeIndividualFemale

Primary Taxonomy208M00000X

Provider Legal NameDR. SARA RUDDOCK-WALKERCredential: M.D.

Location Address25 N WINFIELD RDWinfield, IL 60190-1379

Mailing Address25 N Winfield RdWinfield, IL 60190-1379 · (630) 933-4700 · Fax (630) 933-4427

Phone(630) 933-4700

Fax(630) 933-4427

Sole ProprietorNo

Medical School CMSLoyola University Of Chicago, Stritch School Of MedicineGraduated 2016

Enumeration DateJune 14, 2016

Last NPPES UpdateFebruary 18, 20263 updates tracked since enumeration

NPPES CertifiedFebruary 18, 2026

✔ NPI 1558711101 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians

Taxonomy Code208M00000X

License✔ Licensed in IL · 036151710

Definition

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

Also ListedInternal MedicineTaxonomy 207R00000X · License 036.151710 (IL)

Also ListedPediatricsTaxonomy 208000000X · License 125.069373 (IL), 036.151710 (IL)

25 N WINFIELD RD, Winfield, IL 60190

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter Health, Ambetter Health of Delaware.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. Sara Ruddock-walker M.d. 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 ID8820380744

PECOS Enrollment IDI20200522000528

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 4

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

75 services38 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

37 services15 patients

Hospital discharge day management, more than 30 minutes 99239

Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.

19 services18 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

17 services17 patients

Hospital Affiliations CMS Care Compare 2

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

Rush University Medical Center

Acute Care Hospitals · Chicago, IL

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140119

Location1653 West Congress ParkwayChicago, IL 60612 · Cook County

Emergency services Birthing friendly

Northwestern Medicine Central Dupage Hospital

Acute Care Hospitals · Winfield, IL

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140242

Location25 North Winfield RoadWinfield, IL 60190 · Du Page County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60190 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

$137.43 typical visit price

range $59.81 – $181.38

Typical copayment $34.35 (range $14.95 – $45.34)

Most-billed visit code 99204

Established Patient

$105.07 typical visit price

range $19.15 – $147.12

Typical copayment $26.26 (range $4.78 – $36.78)

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.

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.

Elevating leg rests, pair (for use with capped rental wheelchair base) K0195

DME-Wheelchairs · category DD021N

1 supplier11 claims11 services$7.03 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 20

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

JOSEPH RAYMOND SCHNEIDER MD

Surgery (Vascular Surgery)

25 N WINFIELD RD, SUITE 201
WINFIELD, IL 60190

Dupage County (630) 933-4487

JESSICA LASAK BERNARDI APN

Nurse Practitioner