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Ranked listRefreshed monthly

The 10 largest medical groups in Missouri by HCPs

WashU Medicine Psychiatry has the most HCPs of any medical group in Missouri, 4,478, followed by Mercy Clinic Family Medicine - Hollister in Hollister (2,004) and Saint Luke's Medical Group in Kansas City (1,511).

Updated HCPs linked to each group in CMS enrollment and the Dmand AI databaseHow we ranked

Rank by
Location
Missouri
  1. WashU Medicine PsychiatrySaint Louis · Multi-specialty4,478HCPs3,029physicians
  2. Mercy Clinic Family Medicine - HollisterHollister · Multi-specialty2,004HCPs1,069physicians
  3. Saint Luke's Medical GroupKansas City · Multi-specialty1,511HCPs837physicians
  4. University of Missouri Health CareColumbia · Multi-specialty1,456HCPs907physicians
  5. SLUCare Physician GroupSaint Louis · Multi-specialty1,437HCPs1,048physicians
  6. Compass Health NetworkClinton · Behavioral and Mental Health1,002HCPs156physicians
  7. Mercy Clinic East CommunitiesSaint Louis · Multi-specialty938HCPs507physicians
  8. Children's MercyKansas City · Multi-specialty913HCPs495physicians
  9. SSM Health Medical GroupFenton · Multi-specialty841HCPs509physicians
  10. SSM Health Medical GroupFenton · Multi-specialty795HCPs514physicians

The 10 highest of 1,682 Missouri medical groups that report HCPs. Ranks compare size, not quality of care.

Every medical group in Missouri

The median Missouri medical group has 5 HCPs

1,682 Missouri medical groups report HCPs. The median medical group has 5 HCPs, so WashU Medicine Psychiatry is about 896 times that size.

the size of the median Missouri medical group, which has 5 HCPs
896×
of the 1,682 Missouri medical groups that report HCPs
0.6%

How we ranked the top Missouri medical groups

Measure
HCPs linked to each group in CMS enrollment and the Dmand AI database.
What counts as a group
One Medicare PAC ID. A group that bills under several names counts once.
Field
1,682 Missouri medical groups in the Dmand AI database report HCPs.
Ties
Medical groups with the same number share a rank.
What a rank means
Size only. A rank compares HCPs; 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 HCPs?

WashU Medicine Psychiatry in Saint Louis, with 4,478 HCPs. Mercy Clinic Family Medicine - Hollister is second with 2,004.

What are the top 10 Missouri medical groups by HCPs?

WashU Medicine Psychiatry (4,478), Mercy Clinic Family Medicine - Hollister (2,004), Saint Luke's Medical Group (1,511), University of Missouri Health Care (1,456), SLUCare Physician Group (1,437), Compass Health Network (1,002), Mercy Clinic East Communities (938), Children's Mercy (913), SSM Health Medical Group (841), SSM Health Medical Group (795).

How many HCPs does a typical Missouri medical group have?

The median Missouri medical group that reports HCPs has 5 HCPs, out of 1,682 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 Arkansas by HCPs

    The same ranking for Arkansas medical groups.

  • Ranked list

    The 10 largest medical groups in the US by HCPs

    The national ranking by HCPs.

  • Ranked list

    The 10 largest hospitals in Missouri

    Hospitals in Missouri ranked by staffed beds.

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