Healthcare Providers & Facilities in Alton, IL
Public healthcare directory of 1,118 individual practitioners and 262 healthcare facilities located in Alton, Illinois.
Medical Specialties in Alton
Select a specialty to view practitioner listings, practice locations, and qualifications.
Social Worker - Clinical
Physical Therapist
Nurse Practitioner - Family
Family Medicine
Dentist - General Practice
Nurse Practitioner
Internal Medicine
Emergency Medicine
Nurse Anesthetist, Certified Registered
Physician Assistant
Obstetrics & Gynecology
All Specialties in Alton
Specialties with enough public records for a comparison with U.S. figures, besides those named above, plus the 60 largest of 94 more with at least one listed practitioner. Number of practitioners in brackets.
Allopathic & Osteopathic Physicians
- Anesthesiology (4)
- Anesthesiology - Pain Medicine (1)
- General Practice (6)
- Internal Medicine - Cardiovascular Disease (3)
- Internal Medicine - Endocrinology, Diabetes & Metabolism (2)
- Internal Medicine - Gastroenterology (5)
- Internal Medicine - Hematology & Oncology (2)
- Internal Medicine - Interventional Cardiology (2)
- Internal Medicine - Pulmonary Disease (2)
- Orthopaedic Surgery (6)
- Pain Medicine - Pain Medicine (2)
- Pathology - Anatomic Pathology & Clinical Pathology (3)
- Pediatrics (11)
- Psychiatry & Neurology - Neurology (5)
- Psychiatry & Neurology - Psychiatry (6)
- Radiology - Diagnostic Radiology (7)
- Surgery (7)
- Urology (2)
Behavioral Health & Social Service Providers
- Counselor (169)
- Counselor - Addiction (Substance Use Disorder) (10)
- Counselor - Mental Health (93)
- Counselor - Professional (49)
- Psychologist - Clinical (2)
- Social Worker (22)
Dental Providers
Dietary & Nutritional Service Providers
Eye and Vision Services Providers
- Optometrist (8)
Nursing Service Providers
Nursing Service Related Providers
Other Service Providers
- Case Manager/Care Coordinator (22)
- Driver (2)
- Specialist (4)
Pharmacy Service Providers
Physician Assistants & Advanced Practice Nursing Providers
Podiatric Medicine & Surgery Service Providers
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Speech, Language and Hearing Service Providers
Student, Health Care
Featured Healthcare Providers in Alton
Practitioner profiles in Alton, IL with recent CMS Medicare or Open Payments data.
Dr. Christopher Wilderman , DC
Chiropractor
Olivia Winters , NP-C
Nurse Practitioner - Psychiatric/Mental Health
Dr. Bruce Vest , MD
Orthopaedic Surgery
Dr. Manpreet Sandhu , MD
Internal Medicine - Hematology & Oncology
Cecil Giles , CRNA
Nurse Anesthetist, Certified Registered
Dr. Alexander Zozula , MD
Emergency Medicine
Largest Cities in Illinois
Other Illinois cities with a full directory, by the number of active practitioners listed in NPPES.
How Alton compares with the U.S.
Compared with the U.S. as a whole, Alton has more Dentists (7.8x), Hospitalists (7.6x) and Chiropractors (3.3x) per 100,000 residents.
Alton has 4,423 active clinicians per 100,000 residents, compared with 2,198 for the U.S.
What these numbers mean
Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.
A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.
City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places. Cities with hospitals or large medical centers often list more specialists than the number of residents alone would suggest, because patients also come from nearby areas.
95% of clinicians in Alton listed in the CMS Medicare file (241 of 255) accept Medicare assignment. That is similar to the Illinois share of 92%.
Only 255 of 1,118 active clinicians in Alton 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.
15% of clinicians in Alton listed in the CMS Medicare file (38 of 255) 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 ยท 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. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).
Alton CMS Healthcare & Financial Disclosures
CMS Part D Prescribers (2024), Open Payments (program year 2025), Medicare (PECOS) enrollment and Part B (2024) data for Alton, IL
Healthcare operations in Alton, IL encompass 1,118 active individual practitioners and 262 registered medical facilities across 108 clinical specialties.
According to CMS Medicare Part D analytics for 2024, prescription drug volume in Alton accounts for $34.4 Million across 304,006 prescription claims. 389 local practitioners have a Medicare (PECOS) enrollment record. Open Payments data for program year 2025 list $0.1 Million in payments reported by companies to 177 local practitioners; a reported payment does not necessarily mean the financial relationship is improper.