Log inBook a demoStart free trial
Log inStart free trial
Ranked listRefreshed monthly

The 10 largest medical groups in Missouri by practice locations

Mercy Clinic Family Medicine - Hollister has the most practice locations of any medical group in Missouri, 201, followed by WashU Medicine Psychiatry in Saint Louis (160) and ONR - Orthopaedic & Neurological Rehabilitation, Inc. in Saint Louis (143). Together the 10 leaders hold 1,258 locations in seven cities.

Updated Practice locations on file for each groupHow we ranked

Rank by
Location
Missouri
  1. Mercy Clinic Family Medicine - HollisterHollister · Multi-specialty201locations1,069physicians
  2. WashU Medicine PsychiatrySaint Louis · Multi-specialty160locations3,029physicians
  3. ONR - Orthopaedic & Neurological Rehabilitation, Inc.Saint Louis · Rehabilitation and Therapy143locations7physicians
  4. Mercy Clinic East CommunitiesSaint Louis · Multi-specialty127locations507physicians
  5. Saint Luke's Medical GroupKansas City · Multi-specialty125locations837physicians
  6. Lake of the Ozarks RadiologyOsage Beach · Radiology and Imaging113locations166physicians
  7. SSM Health Medical GroupFenton · Multi-specialty112locations509physicians
  8. SLUCare Physician GroupSaint Louis · Multi-specialty97locations1,048physicians
  9. University of Missouri Health CareColumbia · Multi-specialty96locations907physicians
  10. Compass Health NetworkClinton · Behavioral and Mental Health84locations156physicians

The 10 highest of 1,681 Missouri medical groups that report practice locations. Ranks compare size, not quality of care.

Every medical group in Missouri

The 10 top Missouri medical groups hold 16% of all practice locations

1,681 Missouri medical groups report practice locations, 7,692 practice locations in all. The 10 on this list hold 1,258 of it. The median medical group has 2 locations, so Mercy Clinic Family Medicine - Hollister is about 101 times that size.

of all practice locations at Missouri medical groups that report them
16%
the size of the median Missouri medical group, which has 2 locations
101×
of the 1,681 Missouri medical groups that report practice locations
0.6%

How we ranked the top Missouri medical groups

Measure
Practice locations on file for each group.
What counts as a group
One Medicare PAC ID. A group that bills under several names counts once.
Field
1,681 Missouri medical groups in the Dmand AI database report practice locations.
Ties
Medical groups with the same number share a rank.
What a rank means
Size only. A rank compares practice locations; it says nothing about quality of care.
Refresh
Monthly. Updated Oct 28, 2026.

FAQ

Questions about the top Missouri medical groups

Answers from the same data, updated monthly.

Which Missouri medical group has the most practice locations?

Mercy Clinic Family Medicine - Hollister in Hollister, with 201 locations. WashU Medicine Psychiatry is second with 160.

What are the top 10 Missouri medical groups by practice locations?

Mercy Clinic Family Medicine - Hollister (201), WashU Medicine Psychiatry (160), ONR - Orthopaedic & Neurological Rehabilitation, Inc. (143), Mercy Clinic East Communities (127), Saint Luke's Medical Group (125), Lake of the Ozarks Radiology (113), SSM Health Medical Group (112), SLUCare Physician Group (97), University of Missouri Health Care (96), Compass Health Network (84).

How many practice locations does a typical Missouri medical group have?

The median Missouri medical group that reports practice locations has 2 locations, out of 1,681 that report them.

How often is this list updated?

Every month, when the Dmand AI database refreshes. This version is from Oct 28, 2026.

More ranked lists

Every ranked list

  • Ranked list

    The 10 largest medical groups in the US by practice locations

    The national ranking by practice locations.

  • Ranked list

    The 10 largest hospitals in Missouri

    Hospitals in Missouri ranked by staffed beds.

Dmand AI

Reach the buying committee at the 10 top Missouri medical groups

Pick a medical group from this list and see its leaders by department, with direct dials and email, in one login.

Start free trialBook a demo
  • 30 days free
  • Self-serve
  • No credit card

Cookie settings

Turn each category on or off. Your choice is kept for 12 months and you can change it here at any time.

Necessary

Always on. Sign-in, security, downloads you asked for, your cookie choice, and the page that led to a signup.

View cookies (6)
  • dm_consentDmand AI. Your cookie choices and whether your browser sent a Global Privacy Control signal. 12 months.
  • dm_ft, dm_ltDmand AI. The first and the latest page you arrived on, with the date, so a signup is credited to the page that worked. 90 days, 30 days.
  • dm_fs, dm_lsDmand AI. The first and the latest source of a visit (a search engine, a campaign or the site that linked here). 90 days, 30 days.
  • dm_dl, dm_dl_okDmand AI. After you give an email address for a download, lets you download files without being asked again. 30 days.
  • Session and CSRF cookiesDmand AI (app.dmand.ai). Sign-in and form protection in the application. Session.
  • __cf_bm, cf_clearanceCloudflare. Tells people from automated traffic and keeps the site available. 30 minutes; cf_clearance while a security check is valid.

Analytics

On unless you turn it off. How pages are used, in aggregate, and recordings of how pages are used.

View cookies (6)
  • Google Tag ManagerGoogle. Loads the analytics and marketing tags that are on. Sets no cookie of its own and does not load when both categories are off. n/a.
  • _ga, _ga_<container-id>Google Analytics 4. Visits and page views in aggregate on dmand.ai. 2 years.
  • _clck, _clskMicrosoft Clarity. Recordings and heatmaps of how pages are used, with form fields masked. 1 year, 1 day.
  • CLID, MUID, ANONCHK, MR, SMMicrosoft (clarity.ms). Set by Microsoft when Clarity loads, to recognize a browser across sites that use Clarity. Up to 1 year.
  • None (cookieless)Ahrefs Analytics. Page views in aggregate. n/a.
  • ph_<project>_posthogPostHog. Product usage, errors and performance in app.dmand.ai, used to fix bugs and improve features. 365 days.

Marketing

On unless you turn it off, and always off when your browser sends a Global Privacy Control signal. A visitor identification service tells our sales team which companies and people visit.

View cookies (6)
  • _reb2buid, _reb2butkRB2B. Recognizes a returning browser for visitor identification. 360 days, 1 year.
  • _reb2bgeoRB2B. The location used to decide whether a visit can be identified. 20 days.
  • _reb2brefRB2B. The page or site that referred the visit. 15 days.
  • _reb2bfxf, _reb2btd, _reb2bliRB2B. Links the visit to an identified business profile. 1 month.
  • _reb2bresolveRB2B. Holds a match while it is being resolved. 2 days.
  • _reb2sessionID, _reb2bloadedRB2B. The current visit, and a guard against loading the script twice. 30 minutes, 1 second.

Functional

On unless you turn it off. Remembers choices such as a collapsed section.

View cookies (none today)
Read the Cookie Policy