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Healthcare Providers & Facilities in Oak Park, IL

Public healthcare directory of 2,315 individual practitioners and 684 healthcare facilities located in Oak Park, Illinois.

2,315 Practitioners
684 Facilities
166 Specialties

Medical Specialties in Oak Park

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

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All Specialties in Oak Park

Specialties with enough public records for a comparison with U.S. figures, besides those named above, plus the 60 largest of 147 more with at least one listed practitioner. Number of practitioners in brackets.

Chiropractic Providers

Dietary & Nutritional Service Providers

Eye and Vision Services Providers

Nursing Service Providers

Nursing Service Related Providers

Pharmacy Service Providers

Podiatric Medicine & Surgery Service Providers

Speech, Language and Hearing Service Providers

Featured Healthcare Providers in Oak Park

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

Syrii Beyer , PA-C

Physician Assistant

520 S Maple Ave, Oak Park, IL
Phone: 7083839300
NPI 1225785298

Dr. Marcie Richmond , MD, MHS

Family Medicine

Medicare Accepted
14 Lake St, Oak Park, IL
Phone: 7084063940
NPI 1154752814

Dr. John Perna , DDS

Dentist

101 S Oak Park Ave, Oak Park, IL
Phone: 7083860960
NPI 1992805121

Mary Ludvigsen , NP

Nurse Practitioner - Family

Medicare Accepted
6831 North Ave, Oak Park, IL
Phone: 7082980540
NPI 1194740514

Dr. Maria Dahn , MD

Psychiatry & Neurology - Child & Adolescent Psychiatry

Medicare Accepted
1103 Westgate St, Oak Park, IL
Phone: 7735177873
NPI 1942491519

Dr. Nyal Siddiqi , DO

Internal Medicine - Infectious Disease

Medicare Accepted
610 S Maple Ave Ste 4050, Oak Park, IL
Phone: 8882206432
NPI 1952749426

Largest Cities in Illinois

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

How Oak Park compares with the U.S.

Compared with the U.S. as a whole, Oak Park has more clinicians in Psychologist - Clinical (7.8x), clinicians in Internal Medicine - Infectious Disease (6.4x) and clinicians in Social Worker - Clinical (5.7x) per 100,000 residents.

It has fewer clinicians in Student in an Organized Health Care Education/Training Program (51% of the U.S. rate) per 100,000 residents.

Oak Park has 4,344 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.

90% of clinicians in Oak Park listed in the CMS Medicare file (462 of 512) accept Medicare assignment. That is similar to the Illinois share of 92%.

Only 512 of 2,315 active clinicians in Oak Park 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.

23% of clinicians in Oak Park listed in the CMS Medicare file (118 of 512) 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).

Oak Park CMS Healthcare & Financial Disclosures

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

Source: CMS public datasets

Healthcare operations in Oak Park, IL encompass 2,315 active individual practitioners and 684 registered medical facilities across 166 clinical specialties.

According to CMS Medicare Part D analytics for 2024, prescription drug volume in Oak Park accounts for $23.8 Million across 247,560 prescription claims. 765 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 205 local practitioners; a reported payment does not necessarily mean the financial relationship is improper.

Medicare Part D Prescriptions (2024) $23.8M 247,560 Prescription Claims Source: data.cms.gov
Open Payments Sunshine Act (2025) $0.1M 205 Recipients Disclosed A reported payment does not necessarily mean the financial relationship is improper. Source: openpaymentsdata.cms.gov
Medicare (PECOS) Enrollment 765 Enrolled Medicare Practitioners Source: data.cms.gov
Medicare Part B Allowed Volume (2024) $24.3M 673,649 Services Performed Source: data.cms.gov

CMS PECOS: Eligible to Order or Refer for Medicare in Oak Park

Part B Lab & Imaging Eligible: 572
Durable Medical Equipment (DME): 607
Home Health Agency (HHA): 391
Source: CMS Order and Referring