Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Healthcare Providers & Facilities in Crystal Lake, IL

Public healthcare directory of 1,451 individual practitioners and 441 healthcare facilities located in Crystal Lake, Illinois.

1,451 Practitioners
441 Facilities
133 Specialties

Medical Specialties in Crystal Lake

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

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All Specialties in Crystal Lake

Specialties with enough public records for a comparison with U.S. figures, besides those named above, plus the 60 largest of 120 more with at least one listed practitioner. Number of practitioners in brackets.

Chiropractic Providers

Dietary & Nutritional Service Providers

Nursing Service Related Providers

Other Service Providers

Pharmacy Service Providers

Podiatric Medicine & Surgery Service Providers

Speech, Language and Hearing Service Providers

Featured Healthcare Providers in Crystal Lake

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

Danielle Kelly , NP

Nurse Practitioner - Family

Medicare Accepted
525 E Congress Pkwy Ste 200, Crystal Lake, IL
Phone: 8473818899
NPI 1790552313

Heather Anderson

Social Worker

600 Dakota St, Crystal Lake, IL
Phone: 8472208428
NPI 1649802174

Michelle Lehn , FNP-BC, FPA

Nurse Practitioner - Family

390 E Congress Pkwy Ste I, Crystal Lake, IL
Phone: 3125132496
NPI 1376183467

Amber Koteles , PT

Physical Therapist

360 Station Dr, Crystal Lake, IL
Phone: 8153561750
NPI 1275853731

Susan Bigham , CNP

Nurse Practitioner - Family

Medicare Accepted
360 Station Dr, Crystal Lake, IL
Phone: 8153386600
NPI 1518383264

Judith Mongoum Pene , FNP

Nurse Practitioner - Family

Medicare Accepted
1305 Randall Rd, Crystal Lake, IL
Phone: 8153860386
NPI 1134767759

Largest Cities in Illinois

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

How Crystal Lake compares with the U.S.

Compared with the U.S. as a whole, Crystal Lake has more Occupational Therapists (3.2x), Chiropractors (3.1x) and Physical Therapists (2.9x) per 100,000 residents.

Crystal Lake has 3,576 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.

87% of clinicians in Crystal Lake listed in the CMS Medicare file (300 of 346) accept Medicare assignment. That is lower than the Illinois share of 92%.

Only 346 of 1,451 active clinicians in Crystal Lake 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.

31% of clinicians in Crystal Lake listed in the CMS Medicare file (107 of 346) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is higher 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).

Crystal Lake CMS Healthcare & Financial Disclosures

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

Source: CMS public datasets

Healthcare operations in Crystal Lake, IL encompass 1,451 active individual practitioners and 441 registered medical facilities across 133 clinical specialties.

According to CMS Medicare Part D analytics for 2024, prescription drug volume in Crystal Lake accounts for $27.5 Million across 281,915 prescription claims. 496 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 170 local practitioners; a reported payment does not necessarily mean the financial relationship is improper.

Medicare Part D Prescriptions (2024) $27.5M 281,915 Prescription Claims Source: data.cms.gov
Open Payments Sunshine Act (2025) $0.1M 170 Recipients Disclosed A reported payment does not necessarily mean the financial relationship is improper. Source: openpaymentsdata.cms.gov
Medicare (PECOS) Enrollment 496 Enrolled Medicare Practitioners Source: data.cms.gov
Medicare Part B Allowed Volume (2024) $24.2M 397,681 Services Performed Source: data.cms.gov

CMS PECOS: Eligible to Order or Refer for Medicare in Crystal Lake

Part B Lab & Imaging Eligible: 358
Durable Medical Equipment (DME): 369
Home Health Agency (HHA): 258
Source: CMS Order and Referring