Healthcare Providers & Facilities in Willowbrook, IL
Public healthcare directory of 436 individual practitioners and 146 healthcare facilities located in Willowbrook, Illinois.
Medical Specialties in Willowbrook
Select a specialty to view practitioner listings, practice locations, and qualifications.
Nurse Practitioner - Family
Physical Therapist
Nurse Practitioner
All Specialties in Willowbrook
Specialties with enough public records for a comparison with U.S. figures, plus the 60 largest of 76 more with at least one listed practitioner. Number of practitioners in brackets.
Allopathic & Osteopathic Physicians
- Allergy & Immunology (1)
- Anesthesiology (3)
- Anesthesiology - Pain Medicine (1)
- Dermatology (1)
- Emergency Medicine (1)
- Family Medicine (8)
- Family Medicine - Geriatric Medicine (1)
- General Practice (5)
- Hospitalist (1)
- Internal Medicine (7)
- Internal Medicine - Endocrinology, Diabetes & Metabolism (1)
- Internal Medicine - Gastroenterology (1)
- Internal Medicine - Hepatology (1)
- Internal Medicine - Rheumatology (1)
- Internal Medicine - Sports Medicine (1)
- Obstetrics & Gynecology (7)
- Obstetrics & Gynecology - Gynecology (2)
- Obstetrics & Gynecology - Obstetrics (1)
- Physical Medicine & Rehabilitation (2)
- Psychiatry & Neurology - Psychiatry (2)
Behavioral Health & Social Service Providers
- Behavior Analyst (11)
- Behavior Technician (12)
- Counselor (3)
- Counselor - Mental Health (12)
- Counselor - Professional (13)
- Marriage & Family Therapist (5)
- Psychologist - Clinical (4)
- Social Worker (2)
- Social Worker - Clinical (9)
Chiropractic Providers
- Chiropractor (16)
- Chiropractor - Internist (1)
Dental Providers
Dietary & Nutritional Service Providers
Eye and Vision Services Providers
- Optometrist (1)
Other Service Providers
- Acupuncturist (4)
- Naturopath (1)
Pharmacy Service Providers
Physician Assistants & Advanced Practice Nursing Providers
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Speech, Language and Hearing Service Providers
Student, Health Care
Technologists, Technicians & Other Technical Service Providers
Featured Healthcare Providers in Willowbrook
Practitioner profiles in Willowbrook, IL with recent CMS Medicare or Open Payments data.
Christy Pyzik , APN, FNP-BC
Nurse Practitioner - Family
Dr. Ning Sun , MD, PhD
Psychiatry & Neurology - Neurology
Shauna Vandermey
Nurse Practitioner
Yuliya Rashevska , APRN
Nurse Practitioner - Psychiatric/Mental Health
Dr. Uzma Syed , MD
Internal Medicine - Endocrinology, Diabetes & Metabolism
Dr. Howard Chiu , DPT
Physical Therapist
Largest Cities in Illinois
Other Illinois cities with a full directory, by the number of active practitioners listed in NPPES.
How Willowbrook compares with the U.S.
436 active clinicians list a practice address in Willowbrook, IL in the NPI registry.
Willowbrook has fewer than 10,000 residents, so rates per 100,000 people change a lot with each clinician and are not compared here.
92% of clinicians in Willowbrook listed in the CMS Medicare file (145 of 158) accept Medicare assignment. That is similar to the Illinois share of 92%.
Only 158 of 436 active clinicians in Willowbrook appear in the CMS Medicare file, so this share describes that smaller group.
What is Medicare assignment?
A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.
Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.
11% of clinicians in Willowbrook listed in the CMS Medicare file (17 of 158) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is lower than the Illinois share of 20%.
About the telehealth indicator
The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.
These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.
Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com · Methodology
Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File.
Willowbrook CMS Healthcare & Financial Disclosures
CMS Part D Prescribers (2024), Open Payments (program year 2025), Medicare (PECOS) enrollment and Part B (2024) data for Willowbrook, IL
Healthcare operations in Willowbrook, IL encompass 436 active individual practitioners and 146 registered medical facilities across 79 clinical specialties.
According to CMS Medicare Part D analytics for 2024, prescription drug volume in Willowbrook accounts for $6.4 Million across 100,819 prescription claims. 225 local practitioners have a Medicare (PECOS) enrollment record. Open Payments data for program year 2025 list $0.2 Million in payments reported by companies to 77 local practitioners; a reported payment does not necessarily mean the financial relationship is improper.