Company lists · Data refreshed October 2026

Top 13 Group medical practices based in Chicago, United States

RevenueBase identified 40 company matches for group medical practices associated with Chicago, United States as of October 2026 and tracks 7,254 professional contacts across them, including 1,010 with verified work emails. Across the United States, New York is the largest hub for this category (78 companies); Chicago has 40.

This list covers company matches for group medical practices associated with Chicago, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 13, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Oct 13, 2026 How this list was built
40Companies
7,254Contacts tracked
1,010Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 13 largest group medical practices based in Chicago, United States

Ranked by team size
Top 13 of 40 company matches for group medical practices based in Chicago, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 13, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchChicago, IL, United StatesHQ recorded Oct 13, 202610001+3,301 contacts →

Exact match

“We’re a unified network of care dedicated to helping you feel whole in every aspect of your health and wellness.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
2Exact matchChicago, IL, United StatesHQ recorded Oct 13, 20261,001-5,0001,404 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
3Exact matchChicago, IL, United StatesHQ recorded Oct 13, 20261,001-5,0001,093 contacts →

Exact match

“WellNow Urgent Care is one of the fastest-growing providers of urgent medical care, virtual care, occupational health services and clinical research in the United States.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
4Exact matchChicago, IL, United StatesHQ recorded Oct 13, 2026501-1,000576 contacts →

Exact match

“Founded in 2001 by Dr.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
5Exact matchChicago, IL, United StatesHQ recorded Oct 13, 2026201-500119 contacts →

Exact match

“Hopscotch Primary Care is on a mission to transform lives in rural communities through accessible and proactive value-based primary care.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
6Exact matchChicago, IL, United StatesHQ recorded Oct 13, 202611-5056 contacts →

Exact match

“Oak Street Health MSO LLC is a company based out of 1101 W FULTON MARKET, Chicago, Illinois, United States.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
7Exact matchChicago, IL, United StatesHQ recorded Oct 13, 202611-5044 contacts →

Exact match

“PROVIDENT HOSPITAL OF COOK COUNTY is a hospital & health care company based out of 430 E 50TH PL, CHICAGO, Illinois, United States.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
8Exact matchChicago, IL, United StatesHQ recorded Oct 13, 202611-5025 contacts →

Exact match

“Vivia Health the only way to Care.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
9Exact matchChicago, IL, United StatesHQ recorded Oct 13, 20261-1025 contacts →

Exact match

“Private Multi-specialty medical group in Orland Park, IL”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
10Exact matchChicago, IL, United StatesHQ recorded Oct 13, 202611-5017 contacts →

Exact match

“Northwestern Medicine is dedicated to providing the most advanced health care to the communities and patients we serve.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
11Exact matchChicago, IL, United StatesHQ recorded Oct 13, 202611-5015 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
12Exact matchChicago, IL, United StatesHQ recorded Oct 13, 2026201-50013 contacts →

Exact match

“Mount Sinai Medical Group is a series of clinics serving the poorest of the poor communities.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
13Exact matchChicago, IL, United StatesHQ recorded Oct 13, 20261-102 contacts →

Exact match

“The Group Practice Exchange is here as a helpful platform for clinicians like you, who are interested in running their own successful group practice.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase

Showing 13 of 40 group medical practices based in Chicago, United States

See the full list, filter by size, metro and specialty, and access 1,010 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Group medical practices based in Chicago, United States at a glance

As of Oct 13, 2026
13.9%Verified-email coverage
181.3Average contacts per company
11-50Median size (employees)
Oct 13, 2026Page data refreshed

Companies by employee count

1-10
11
11-50
13
51-200
6
201-500
3
501-1,000
1
1,001-5,000
3
5,001-10,000
1
10001+
2

Email recency for this list is measured across the whole United States list rather than for Chicago, so it is reported there. Company counts and contact totals on this page are exact for Chicago, over 40 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Chicago, United States whose business descriptions match “group medical practices” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 1,010 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on October 13, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “group medical practices”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many group medical practices are there based in Chicago, United States?

RevenueBase identified 40 company matches for group medical practices associated with Chicago, United States as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Amita Health tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most group medical practices?

New York leads the United States with 78 company records, followed by Houston (70) and Miami (51). Chicago has 40.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,010 professional contacts with verified work emails tracked across these 40 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 13, 2026.

Ready to reach these companies? Verified emails and direct dials for all 40 group medical practices based in Chicago, United States. Start with a free account, no credit card.

Download this list →

Related lists

About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.