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Ranked listRefreshed monthly

The 10 largest medical groups in Oregon by HCPs

Kaiser Permanente Northwest has the most HCPs of any medical group in Oregon, 3,619, followed by Oregon Health & Science University (OHSU) in Portland (2,613) and Providence Medical Group, Oregon in Lake Oswego (1,976).

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

Rank by
Location
Oregon
  1. Kaiser Permanente NorthwestPortland · Multi-specialty3,619HCPs2,263physicians
  2. Oregon Health & Science University (OHSU)Portland · Multi-specialty2,613HCPs1,753physicians
  3. Providence Medical Group, OregonLake Oswego · Multi-specialty1,976HCPs1,202physicians
  4. Legacy Medical Group-NorthwestPortland · Multi-specialty1,625HCPs1,116physicians
  5. Shriners Hospitals For ChildrenPortland · Multi-specialty1,049HCPs718physicians
  6. Providence Medical Group - OregonPortland · Multi-specialty897HCPs621physicians
  7. Legacy Emanuel Medical CenterPortland · Multi-specialty829HCPs559physicians
  8. Hillsboro Medical Center (Tuality Healthcare)Portland · Multi-specialty755HCPs584physicians
  9. Salem HealthSalem · Multi-specialty751HCPs517physicians
  10. Providence Portland Medical CenterPortland · Multi-specialty731HCPs514physicians

The 10 highest of 1,341 Oregon medical groups that report HCPs. Ranks compare size, not quality of care.

Every medical group in Oregon

The median Oregon medical group has 5 HCPs

1,341 Oregon medical groups report HCPs. The median medical group has 5 HCPs, so Kaiser Permanente Northwest is about 724 times that size.

the size of the median Oregon medical group, which has 5 HCPs
724×
of the 1,341 Oregon medical groups that report HCPs
0.7%

How we ranked the top Oregon 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
1,341 Oregon 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 Oregon medical groups

Answers from the same data, updated monthly.

Which Oregon medical group has the most HCPs?

Kaiser Permanente Northwest in Portland, with 3,619 HCPs. Oregon Health & Science University (OHSU) is second with 2,613.

What are the top 10 Oregon medical groups by HCPs?

Kaiser Permanente Northwest (3,619), Oregon Health & Science University (OHSU) (2,613), Providence Medical Group, Oregon (1,976), Legacy Medical Group-Northwest (1,625), Shriners Hospitals For Children (1,049), Providence Medical Group - Oregon (897), Legacy Emanuel Medical Center (829), Hillsboro Medical Center (Tuality Healthcare) (755), Salem Health (751), Providence Portland Medical Center (731).

How many HCPs does a typical Oregon medical group have?

The median Oregon medical group that reports HCPs has 5 HCPs, out of 1,341 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 California by HCPs

    The same ranking for California 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 Oregon

    Hospitals in Oregon ranked by staffed beds.

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