With 487 medical sites, Kaiser Permanante is the largest medical group in the US, according to OneKey's latest report. View this report to target medical groups with the largest network of physicians and medical sites, and find out which are the top 20 physician specialties in the US. See where the highest concentration of purchasing power exists. Use the report as a quick guide to the websites of the top 50 medical groups.

This newly updated report highlights the:

 

Ü 50 Largest Medical Groups by Number of Physicians

 

Ü Physician Office Count by Size of Practice

 

Ü Top 20 Physician Specialties

 

Ü Daily Patient Volume at Medical Sites

 

Ü Headquarters and Web Addresses of Medical Groups

Family practitioners top the list of physician specialties.