Doctors in Great Lakes, IL
Active healthcare providers in Great Lakes sourced from the CMS NPPES weekly file, no proprietary ratings, no editorial scores. NPI counts, specialty distribution, and primary practice addresses refreshed each release.
Where this city sits in the corpus
Great Lakes ranks 146th among 540 Illinois cities by CMS provider count, holding 0.1% of the state's NPIs, led by General Practice Dentistry.
- 267
- NPPES providers in city
- 146th
- of 540 IL cities
- 0.1%
- of Illinois providers
- 48.3%
- in top 3 specialties
Great Lakes ranks #11 of 10 Illinois cities for General Practice Dentistry.
Where Great Lakes ranks among Illinois cities
Provider count vs every Illinois city in CMS NPPES (540 cities)
267 Top 27% higher than 73% of 540 cities
Each bar is a band; taller bars hold more cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS National Plan & Provider Enumeration System (NPPES) · 2026
Specialty mix in Great Lakes
Share of the city's NPPES registrations by NUCC taxonomy
- General Practice Den…
General Practice Dentistry
51 providers
- Dentist
Dentist
51 providers
- Independent Duty Cor…
Independent Duty Corpsman
27 providers
- Dental Hygienist 11
Dental Hygienist
11 providers
- Pharmacist 9
Pharmacist
9 providers
- Clinical Social Worker 8
Clinical Social Worker
8 providers
- Clinical Psychologist 8
Clinical Psychologist
8 providers
- Family Medicine Phys… 7
Family Medicine Physician
7 providers
- Other Specialist/Tec… 5
Other Specialist/Technologist
5 providers
- General Practice Phy… 5
General Practice Physician
5 providers
What this shows General Practice Dentistry is the largest specialty (51 providers, 19.1% of the city), followed by Dentist.
City vs state specialty index
Specialties Great Lakes has more, and fewer, of than Illinois average
Each multiple is this city's share of a specialty divided by that specialty's average share across Illinois . This reflects local practice structure, not care quality.
More common here than Illinois average
- Independent Duty Corpsman 673.7×
- Dental Hygienist 28.7×
- Dentist 9.7×
- General Practice Dentistry 8.7×
How to read this directory & data limitations
Great Lakes, Illinois appears in the CMS National Plan and Provider Enumeration System with 267 registered healthcare providers spanning 20 distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Great Lakes - physicians, dentists, nurse practitioners, physician assistants, chiropractors, physical therapists, optometrists, psychologists, podiatrists, and every other credentialed provider type CMS tracks. It does not measure hospital beds, urgent-care capacity, or whether a given clinic is accepting new patients; it measures the pool of professionals with current NPI enrollment and a Great Lakes practice location on file. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) - more than 7 million providers, maintained since May 2007, with 2023 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.
The provider mix in Great Lakes is weighted toward General Practice Dentistry (51 clinicians, followed by Dentist with 51 and Independent Duty Corpsman with 27). That distribution reflects how NPPES records specialty: providers self-select a primary taxonomy code, so a family physician who also practices geriatrics will show up under whichever NUCC code they registered first. Relative to Illinois's population, Great Lakes reports roughly 2.1 providers per 100,000 residents using the state-level denominator, which is a rough proxy rather than a precise access-to-care measurement; the true catchment area of any {cityName} clinician extends beyond the municipal boundary.
Of Illinois's most common specialties, Physical Therapist is the most prominent one with no provider currently listing a Great Lakes practice address, a coverage gap Great Lakes patients typically fill by traveling to a larger nearby hub.
For Great Lakes patients, this directory is most useful as a starting shortlist. Important: PlainDoctor is a directory of publicly available CMS government data, not a review site, a ranking, or medical advice. NPPES data is self-reported and refreshed monthly; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.
Which specialties are most common in Great Lakes
| # | Specialty | Providers | % of city |
|---|---|---|---|
| 1 | General Practice Dentistry | 51 | 19.1% |
| 2 | Dentist | 51 | 19.1% |
| 3 | Independent Duty Corpsman | 27 | 10.1% |
| 4 | Dental Hygienist | 11 | 4.1% |
| 5 | Pharmacist | 9 | 3.4% |
| 6 | Clinical Social Worker | 8 | 3.0% |
| 7 | Clinical Psychologist | 8 | 3.0% |
| 8 | Family Medicine Physician | 7 | 2.6% |
| 9 | Other Specialist/Technologist | 5 | 1.9% |
| 10 | General Practice Physician | 5 | 1.9% |
| 11 | Women's Health Nurse Practitioner | 4 | 1.5% |
| 12 | Physician Assistant | 4 | 1.5% |
| 13 | Military Health Care Provider | 4 | 1.5% |
| 14 | Optometrist | 4 | 1.5% |
| 15 | Registered Dietitian | 4 | 1.5% |
Healthcare Providers (Page 6)
| Name |
|---|
| Bret Van Dyken, D.D.S. General Practice Dentistry |
| John Vasquez, IDC Independent Duty Corpsman |
| Christopher Verzosa, D.D.S. General Practice Dentistry |
| Bridget Walker, RDH Dental Hygienist |
| Shannan Walker, DDS Dentist |
| William Welder, M.D. Family Medicine Physician |
| James Westra, M.D. Anatomic Pathology & Clinical Pathology Physician |
| Lauren Wiles, DMD Dentist |
| Rhonda Wiley, IDC Independent Duty Corpsman |
| Larry Williams, DDS General Practice Dentistry |
| Roberta Wisun, DDS General Practice Dentistry |
| Shauna Wittke, RDH Dental Hygienist |
| Walter Wittke, DDS Dentist |
| Joseph Yancho, DDS Dentist |
| Joseph Youkhana, M.D. Family Medicine Physician |
| Michael Zenz, M.A. Audiologist |
| Magdalena Zygadlo Dental Hygienist |
Nearby Cities in Illinois
Other Illinois cities with provider coverage in the CMS NPPES registry.
Frequently Asked Questions
How many doctors are in Great Lakes, IL?
What are the most common medical specialties in Great Lakes?
Related guides
Explore Illinois
Provider data from CMS NPPES (download.cms.gov/nppes); specialty classification from NUCC Health Care Provider Taxonomy. PlainDoctor does not rate or rank providers. Methodology · About
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from CMS National Plan and Provider Enumeration System (NPPES). Consult a qualified professional before making decisions based on this data.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-05-20.