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Healthcare Providers & Facilities in Mchenry, IL

Public healthcare directory of 1,868 individual practitioners and 208 healthcare facilities located in Mchenry, Illinois.

1,868 Practitioners
208 Facilities
129 Specialties

Medical Specialties in Mchenry

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

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All Specialties in Mchenry

Specialties with enough public records for a comparison with U.S. figures, besides those named above, plus the 60 largest of 116 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 Related Providers

Physician Assistants & Advanced Practice Nursing Providers

Podiatric Medicine & Surgery Service Providers

Speech, Language and Hearing Service Providers

Featured Healthcare Providers in Mchenry

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

John Dano

Dentist

601 Ridgeview Dr, Mchenry, IL
Phone: 8153442264
NPI 1427123447

Lindsay Mattes

Nurse Practitioner - Family

3901 Mercy Dr, Mchenry, IL
Phone: 8153639900
NPI 1063066124

Cherie Fiedler , APRN, FNP-BC

Nurse Practitioner

Medicare Accepted
4305 W Medical Center Dr Ste 1, Mchenry, IL
Phone: 8157598100
NPI 1730822263

Dr. Elissa Brebach , MD

Radiology - Diagnostic Radiology

Medicare Accepted
4201 W Medical Center Dr, Mchenry, IL
Phone: 8157590800
NPI 1407054216

Dr. Syed Ghani , MD

Internal Medicine - Adolescent Medicine

Medicare Accepted
4309 W Medical Center Dr, Mchenry, IL
Phone: 8153386600
NPI 1205877396

Katarzyna Brozek , FNP

Nurse Practitioner - Family

4201 W Medical Center Dr, Mchenry, IL
Phone: 8153445000
NPI 1083103568

Largest Cities in Illinois

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

How Mchenry compares with the U.S.

Compared with the U.S. as a whole, Mchenry has more Hospitalists (15.4x), clinicians in Radiology - Diagnostic Radiology (9.7x) and clinicians in Internal Medicine (5.7x) per 100,000 residents.

Mchenry has 6,654 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.

94% of clinicians in Mchenry listed in the CMS Medicare file (356 of 379) accept Medicare assignment. That is similar to the Illinois share of 92%.

Only 379 of 1,868 active clinicians in Mchenry 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.

17% of clinicians in Mchenry listed in the CMS Medicare file (63 of 379) 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).

Mchenry CMS Healthcare & Financial Disclosures

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

Source: CMS public datasets

Healthcare operations in Mchenry, IL encompass 1,868 active individual practitioners and 208 registered medical facilities across 129 clinical specialties.

According to CMS Medicare Part D analytics for 2024, prescription drug volume in Mchenry accounts for $33.9 Million across 214,964 prescription claims. 503 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 184 local practitioners; a reported payment does not necessarily mean the financial relationship is improper.

Medicare Part D Prescriptions (2024) $33.9M 214,964 Prescription Claims Source: data.cms.gov
Open Payments Sunshine Act (2025) $0.2M 184 Recipients Disclosed A reported payment does not necessarily mean the financial relationship is improper. Source: openpaymentsdata.cms.gov
Medicare (PECOS) Enrollment 503 Enrolled Medicare Practitioners Source: data.cms.gov
Medicare Part B Allowed Volume (2024) $25.7M 464,670 Services Performed Source: data.cms.gov

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

Part B Lab & Imaging Eligible: 414
Durable Medical Equipment (DME): 418
Home Health Agency (HHA): 378
Source: CMS Order and Referring