Sara Ruddock-Walker, M.D.
Hospitalist · Pediatric Medicine (CMS) · Winfield, IL
At a glance
25 N Winfield Rd, Winfield, IL 60190-1379
NPPES record updated Feb 18, 2026. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
25 N Winfield RdWinfield, IL 60190-1379
Additional reported practice locations
26W171 Roosevelt RdWheaton, IL 601876002
Phone: 6309334700
Fax: 6309334427
Education & affiliations
- Medical / professional school
- Loyola University Of Chicago, Stritch School Of Medicine
- Graduation year
- 2016
- CMS specialties
- Hospitalist · Pediatric Medicine
Practice groups
Reported hospital affiliations
- Northwestern Medicine Central Dupage Hospital Winfield, IL
- Rush University Medical Center Chicago, IL
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
No matching general-payment summary in the imported release. This is not a verified zero and does not rule out other payment types or years.
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Hospitalist · Pediatric Medicine (CMS)
- Taxonomy code
- 208M00000X
- Enumeration date
- Jun 14, 2016
- Record updated
- Feb 18, 2026
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- M.D.
Reported taxonomies and licenses
208000000X
License reported: 125.069373 IL
207R00000X
License reported: 036.151710 IL
208000000X
License reported: 036.151710 IL
208M00000X · Primary
License reported: 036151710 IL
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
25 N Winfield RdWinfield, IL 60190-1379
- Phone
- (630) 933-4700
- Fax
- (630) 933-4427
Mailing address
25 N WINFIELD RDWINFIELD, IL 601901379
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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