Group Practices
Directory of group practices linked by CMS Group Practice PAC ID (Org_PAC_ID). Counts and signals are for educational reference from public datasets.
2,376 group practices in directory · names starting with “O” · updated 2026-06-06
Group practice data is aggregated from CMS public files for educational reference. Pattern signals and scores do not establish wrongdoing and are not legal or compliance advice. Full disclaimer
Showing 1–60 of 2,376 · page 1 of 40
- O AND G - WHCA, P.A.3 providers· TXStandard pattern(10)
- O BARTOLOMEO MD SC2 providers· ILStandard pattern(0)
- O MEARA ROSADO DPM PLLC4 providers· TXStandard pattern(20)
- O'CONNOR FAMILY WELLNESS CHIROPRACTIC LLC2 providers· NJStandard pattern(10)
- O'CONNOR FOUNDATION7 providers· ILStandard pattern(20)
- O'FALLON DERMATOLOGY SPECIALISTS, P.C.3 providers· MOStandard pattern(10)
- O'FALLON FAMILY EYE CARE LLC2 providers· MOStandard pattern(10)
- O'LAIRE HEALTH SOLUTIONS INC2 providers· ALStandard pattern(10)
- O'NAN CHIROPRACTIC PLLC3 providers· KYElevated pattern(40)
- O'NEILL FAMILY CHIROPRACTIC, PC2 providers· IAStandard pattern(10)
- O'NEILL PLASTIC SURGERY, PA4 providers· SCStandard pattern(20)
- O.B. ADULT HEALTH NURSE PRACTITIONER SERVICES PC2 providers· NYStandard pattern(10)
- O.M. MEDICAL HOUSE CALL MGMT INC2 providers· TXElevated pattern(30)
- O2 PHYSICAL THERAP, LLC4 providers· LAStandard pattern(20)
- O2 REHAB SOLUTIONS, LLC2 providers· GAStandard pattern(10)
- OA CENTERS OF KANSAS CITY, LLC5 providers· 2 statesElevated pattern(40)
- OA THERAPY LLC25 providers· 2 statesStandard pattern(20)
- OAHU DERMATOLOGY LLC3 providers· HIStandard pattern(20)
- OAHU EMERGENCY PHYSICIAN SERVICES LLC8 providers· HIStandard pattern(20)
- OAHU PHYSIO THERAPY INC6 providers· HIStandard pattern(20)
- OAK BROOK ALLERGISTS SC3 providers· ILStandard pattern(10)
- OAK BROOK ANESTHESIOLOGISTS LTD5 providers· ILStandard pattern(20)
- OAK BROOK COUNSELING AND WELLNESS LTD3 providers· ILStandard pattern(20)
- OAK BROOK FOOT AND ANKLE SPECIALISTS PC3 providers· 2 statesStandard pattern(0)
- OAK BROOK MEDICAL GROUP LTD4 providers· ILStandard pattern(20)
- OAK CITY CHIROPRACTIC, PLLC3 providers· NCStandard pattern(20)
- OAK CITY DERMATOLOGY2 providers· NCStandard pattern(10)
- OAK CREEK ANESTHESIA SERVICES INC48 providers· CAStandard pattern(20)
- OAK CREEK CHIROPRACTIC LLC2 providers· KSStandard pattern(10)
- OAK CREEK EMERGENCY MEDICINE ASSOCIATES PA26 providers· TXStandard pattern(10)
- OAK CREEK RELIEF AND WELLNESS SC6 providers· WIStandard pattern(20)
- OAK DERMATOLOGY LLC15 providers· ILStandard pattern(20)
- OAK FOREST PSYCHOLOGICAL SERVICE7 providers· ILStandard pattern(20)
- OAK GROVE CHIROPRACTIC LLC2 providers· MOStandard pattern(10)
- OAK GROVE PHYSICIAN SERVICES PA39 providers· FLStandard pattern(20)
- OAK HARBOR PRIMARY CARE PLLC5 providers· WAStandard pattern(10)
- OAK HAVEN MEDICAL GROUP INC2 providers· CAStandard pattern(10)
- OAK HILL CHIROPRACTIC P.C.2 providers· MNStandard pattern(10)
- OAK HILL CLINIC CORP6 providers· WVStandard pattern(10)
- OAK HILL EMERGENCY PHYSICIANS, LLC6 providers· WVStandard pattern(10)
- OAK HILL HEALTH SERVICES, LLC5 providers· MSStandard pattern(20)
- OAK HILLS BACK AND NECK CARE CENTER, LLC4 providers· OHStandard pattern(20)
- OAK HILLS BEHAVIORAL HEALTH SOLUTIONS5 providers· MOStandard pattern(20)
- OAK HILLS MEDICAL CORPORATION5 providers· CAStandard pattern(20)
- OAK MEDICAL SC87 providers· WIElevated pattern(25)
- OAK MOUNTAIN GROUP SERVICES, LLC51 providers· ALElevated pattern(25)
- OAK ORCHARD CHIROPRACTIC P.C.2 providers· NYStandard pattern(10)
- OAK ORCHARD COMMUNITY HEALTH CENTER, INC.49 providers· NYStandard pattern(20)
- OAK PARK EYE CENTER S.C.3 providers· ILElevated pattern(30)
- OAK PARK URGENT CARE PLLC3 providers· MIStandard pattern(20)
- OAK RIDGE CENTER PLLC13 providers· MNStandard pattern(20)
- OAK RIDGE CHIROPRACTIC2 providers· TNStandard pattern(10)
- OAK RIDGE PHYSICAL THERAPY, INC.6 providers· NCStandard pattern(10)
- OAK RIDGE SURGEONS PC2 providers· TNStandard pattern(20)
- OAK STREET HEALTH CARE CENTER P C4 providers· ORStandard pattern(10)
- OAK STREET HEALTH OF GEORGIA PC34 providers· GAStandard pattern(20)
- OAK STREET HEALTH OF TEXAS PLLC88 providers· TXElevated pattern(25)
- OAK STREET HEALTH PHYSICIANS GROUP OF ALABAMA, LLC22 providers· ALStandard pattern(20)
- OAK STREET HEALTH PHYSICIANS GROUP OF ARIZONA PLLC64 providers· AZElevated pattern(25)
- OAK STREET HEALTH PHYSICIANS GROUP OF ARKANSAS PLLC7 providers· ARStandard pattern(20)
Results for each letter are sorted alphabetically by group name.
Group practice names and counts come from CMS Doctors & Clinicians public data (Org_PAC_ID). Not every U.S. medical group appears in this file. This is not medical advice, a referral service, or a substitute for official credentialing checks.