Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Healthcare Providers & Facilities in Collinsville, IL

Public healthcare directory of 238 individual practitioners and 121 healthcare facilities located in Collinsville, Illinois.

238 Practitioners
121 Facilities
53 Specialties

Medical Specialties in Collinsville

Select a specialty to view practitioner listings, practice locations, and qualifications.

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All Specialties in Collinsville

53 specialties with at least one listed practitioner; none has a comparison directory yet. Number of practitioners in brackets.

Chiropractic Providers

Dietary & Nutritional Service Providers

Eye and Vision Services Providers

Nursing Service Providers

Other Service Providers

Pharmacy Service Providers

Podiatric Medicine & Surgery Service Providers

Speech, Language and Hearing Service Providers

Technologists, Technicians & Other Technical Service Providers

Featured Healthcare Providers in Collinsville

Practitioner profiles in Collinsville, IL with recent CMS Medicare or Open Payments data.

Shawna Swinigan , PA-C

Physician Assistant - Medical

Medicare Accepted
501 Belt Line Rd, Collinsville, IL
Phone: 6183436005
NPI 1932391687

Dr. Alan Hagen , MD

Internal Medicine

531 Vandalia St Fl 2, Collinsville, IL
Phone: 6183430500
NPI 1114946175

Dr. Patrick Zimmermann , MD

Family Medicine

Medicare Accepted
531 Vandalia St, Collinsville, IL
Phone: 6183440090
NPI 1194749218

Lisa Cundall , MS

Speech-Language Pathologist

414 Hillside Dr, Collinsville, IL
Phone: 6183444697
NPI 1982856803

Dr. Chad Weber , DC

Chiropractor

Medicare Accepted
1600 Vandalia St, Collinsville, IL
Phone: 6185815370
NPI 1487832952

Dr. Katelyn Genenbacher , DMD

Dentist - General Practice

101 United Dr Ste 150, Collinsville, IL
Phone: 6183457676
NPI 1255959847

Largest Cities in Illinois

Other Illinois cities with a full directory, by the number of active practitioners listed in NPPES.

How Collinsville compares with the U.S.

Collinsville has 990 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.

90% of clinicians in Collinsville listed in the CMS Medicare file (28 of 31) accept Medicare assignment. That is similar to the Illinois share of 92%.

Only 31 of 238 active clinicians in Collinsville 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.

19% of clinicians in Collinsville listed in the CMS Medicare file (6 of 31) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is similar to 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).

Collinsville CMS Healthcare & Financial Disclosures

CMS Part D Prescribers (2024), Open Payments (program year 2025), Medicare (PECOS) enrollment and Part B (2024) data for Collinsville, IL

Source: CMS public datasets

Healthcare operations in Collinsville, IL encompass 238 active individual practitioners and 121 registered medical facilities across 53 clinical specialties.

According to CMS Medicare Part D analytics for 2024, prescription drug volume in Collinsville accounts for $3.7 Million across 52,866 prescription claims. 70 local practitioners have a Medicare (PECOS) enrollment record. Open Payments data for program year 2025 list $0.0 Million in payments reported by companies to 22 local practitioners; a reported payment does not necessarily mean the financial relationship is improper.

Medicare Part D Prescriptions (2024) $3.7M 52,866 Prescription Claims Source: data.cms.gov
Open Payments Sunshine Act (2025) $0.0M 22 Recipients Disclosed A reported payment does not necessarily mean the financial relationship is improper. Source: openpaymentsdata.cms.gov
Medicare (PECOS) Enrollment 70 Enrolled Medicare Practitioners Source: data.cms.gov
Medicare Part B Allowed Volume (2024) $1.3M 21,357 Services Performed Source: data.cms.gov

CMS PECOS: Eligible to Order or Refer for Medicare in Collinsville

Part B Lab & Imaging Eligible: 37
Durable Medical Equipment (DME): 38
Home Health Agency (HHA): 27
Source: CMS Order and Referring