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Ranked listRefreshed monthly

The 10 largest medical groups in Idaho by physicians

St. Luke's Health System is the largest medical group in Idaho, with 903 physicians, followed by Portneuf Medical Center - Pediatric Cardiology in Pocatello (708) and Saint Alphonsus Regional Medical Center in Boise (534).

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

Rank by
Location
Idaho
  1. St. Luke's Health SystemBoise · Multi-specialty903physicians1,747HCPs
  2. Portneuf Medical Center - Pediatric CardiologyPocatello · Multi-specialty708physicians858HCPs
  3. Saint Alphonsus Regional Medical CenterBoise · Multi-specialty534physicians970HCPs
  4. Kootenai HealthCoeur D Alene · Multi-specialty352physicians550HCPs
  5. Kootenai HealthCoeur D Alene · Multi-specialty289physicians460HCPs
  6. Utah Regional HospitalistsIdaho Falls · Primary Care253physicians360HCPs
  7. St. Luke's Clinic, Magic Valley/JeromeTwin Falls · Multi-specialty213physicians398HCPs
  8. Full Circle HealthBoise · Primary Care184physicians238HCPs
  9. Portneuf MedicalPocatello · Multi-specialty161physicians237HCPs
  10. Mountain View HospitalIdaho Falls · Multi-specialty143physicians417HCPs

The 10 largest of 443 Idaho medical groups that report physicians. Ranks compare size, not quality of care.

Every medical group in Idaho

The median Idaho medical group has 2 physicians

443 Idaho medical groups report physicians. The median medical group has 2 physicians, so St. Luke's Health System is about 452 times that size.

the size of the median Idaho medical group, which has 2 physicians
452×
of the 443 Idaho medical groups that report physicians
2.3%

How we ranked the largest Idaho medical groups

Measure
Physicians 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
443 Idaho medical groups in the Dmand AI database report physicians.
Ties
Medical groups with the same number share a rank.
HCPs
Healthcare professionals with a current link to the group in the Dmand AI database.
What a rank means
Size only. A rank compares physicians; it says nothing about quality of care.
Refresh
Monthly. Updated Oct 28, 2026.

FAQ

Questions about the largest Idaho medical groups

Answers from the same data, updated monthly.

What is the largest medical group in Idaho?

St. Luke's Health System in Boise, with 903 physicians. Portneuf Medical Center - Pediatric Cardiology is second with 708.

What are the 10 largest medical groups in Idaho?

By physicians: St. Luke's Health System (903), Portneuf Medical Center - Pediatric Cardiology (708), Saint Alphonsus Regional Medical Center (534), Kootenai Health (352), Kootenai Health (289), Utah Regional Hospitalists (253), St. Luke's Clinic, Magic Valley/Jerome (213), Full Circle Health (184), Portneuf Medical (161), Mountain View Hospital (143).

How many physicians does a typical Idaho medical group have?

The median Idaho medical group that reports physicians has 2 physicians, out of 443 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 Montana

    The same ranking for Montana medical groups.

  • Ranked list

    The 10 largest medical groups in the US

    The national ranking by physicians.

  • Ranked list

    The 10 largest hospitals in Idaho

    Hospitals in Idaho ranked by staffed beds.

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