1.

OhioHealth Marion General Hospital 1920

2.

OHSU Hospital N/A

3.

Opt Health 2019

4.

Optimal Healthcare & Wellness PLLC N/A

5.

Optimal Wellness MD 2009

6.

Orange County Immune Institute 1984

7.

Pain Relief and Longevity N/A

8.

Pain Stop Clinics 2018

9.

Palm Health 2016

10.

Palmetto Wellness & Weight Loss 2013

11.

Palomar Medical Center 1950

12.

Partners In Health Care, Naturally 1999

13.

Passer Restorative Therapies 1980

14.

Patients Medical 2004?

15.

Peak Vitality N/A

16.

Peaks of Health Metabolic Medical Center 2012

17.

Phillips Clinic 1980

18.

Phoenix Women's Health N/A

19.

Photomedex 1980

20.

Pineapple Health N/A

21.

Precision MD Health Optimization, LLC N/A

22.

Precision Medical Care LLC N/A

23.

Premier Center For Healthy Aging 2004

24.

Prestige Care Age Management N/A

25.

Princeton Longevity Center 2002