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Ranked listRefreshed monthly

The 10 largest medical groups in Arizona by physicians

Mayo Clinic Arizona is the largest medical group in Arizona, with 1,328 physicians, followed by Banner Medical Group in Phoenix (1,179) and District Medical Group in Phoenix (1,123).

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

Rank by
Location
Arizona
  1. Mayo Clinic ArizonaScottsdale · Multi-specialty1,328physicians2,228HCPs
  2. Banner Medical GroupPhoenix · Multi-specialty1,179physicians1,601HCPs
  3. District Medical GroupPhoenix · Multi-specialty1,123physicians1,615HCPs
  4. Phoenix Children's Medical GroupPhoenix · Multi-specialty945physicians1,538HCPs
  5. Banner Medical GroupPhoenix · Multi-specialty937physicians1,076HCPs
  6. Sonoran RadiologyMesa · Radiology and Imaging858physicians893HCPs
  7. St. Joseph's Faculty PhysiciansPhoenix · Multi-specialty620physicians972HCPs
  8. SimonMed ImagingScottsdale · Radiology and Imaging618physicians670HCPs
  9. HonorHealth Medical GroupPhoenix · Multi-specialty575physicians983HCPs
  10. Banner Medical Group (BMG)Phoenix · Multi-specialty560physicians729HCPs

The 10 largest of 1,766 Arizona medical groups that report physicians. Ranks compare size, not quality of care.

Every medical group in Arizona

The median Arizona medical group has 3 physicians

1,766 Arizona medical groups report physicians. The median medical group has 3 physicians, so Mayo Clinic Arizona is about 443 times that size.

the size of the median Arizona medical group, which has 3 physicians
443×
of the 1,766 Arizona medical groups that report physicians
0.6%

How we ranked the largest Arizona 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
1,766 Arizona 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 Arizona medical groups

Answers from the same data, updated monthly.

What is the largest medical group in Arizona?

Mayo Clinic Arizona in Scottsdale, with 1,328 physicians. Banner Medical Group is second with 1,179.

What are the 10 largest medical groups in Arizona?

By physicians: Mayo Clinic Arizona (1,328), Banner Medical Group (1,179), District Medical Group (1,123), Phoenix Children's Medical Group (945), Banner Medical Group (937), Sonoran Radiology (858), St. Joseph's Faculty Physicians (620), SimonMed Imaging (618), HonorHealth Medical Group (575), Banner Medical Group (BMG) (560).

How many physicians does a typical Arizona medical group have?

The median Arizona medical group that reports physicians has 3 physicians, out of 1,766 that report them.

How often is this list updated?

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

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    The 10 largest medical groups in California

    The same ranking for California medical groups.

  • Ranked list

    The 10 largest medical groups in the US

    The national ranking by physicians.

  • Ranked list

    The 10 largest hospitals in Arizona

    Hospitals in Arizona ranked by staffed beds.

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