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John Coates, DO

My Locations

Map Marker A WellSpan Family Medicine - Crossroads
4131 Oregon Pike
Brownstown, PA 17508
(717) 859-1123
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About Me

Why I chose to pursue a career in medicine:

My biological father was a scientist who was, shortly after I was born, able to accurately predict an impending natural disaster. Unfortunately he was ultimately unable to prevent its devastating impact on our community but the effort was not lost on me. Trying to live up to his legacy is one of the main reasons I have decided to devote my life to helping others.


What I want my patients to know about me:

The values instilled in me by my adoptive parents, who raised me in Kansas, will always be with me and are in fact what primarily motivate me.


What I do when I'm not seeing patients:

I am interested in true crime journalism and flying (I hope to one day have the time to get a pilot's license).


Clinical Interests

  • Addiction to Cigarette Smoke
  • Adolescent Medicine
  • Contraception
  • Dermatology
  • Diabetes
  • Health & Wellness
  • Hypertension
  • Joint Aspiration/ Injections
  • Neonatal - Perinatal Medicine
  • Pediatrics
  • Skin Lesions
  • Women’s Health

Board Certifications

  • American Board of Osteopathic Family Physicians | Family Practice

Education & Credentials

  • Medical School: Philadelphia Col. of Osteopathic M
  • Internship Program: Tripler Army Medical Center
  • Residency Program: Reading Hospital & Medical Center

WellSpan Hospital Affiliations

  • WellSpan Ephrata Hospital

Health Plans Accepted

WellSpan Financial Assistance Program participant

  • Aetna
  • Aetna Better Health
  • Amerihealth Caritas PA
  • Capital Blue Cross
  • Cigna Healthsprings(Formerly Bravo)
  • Cigna/Greatwest
  • EHP Significa
  • Gateway
  • Geisinger
  • Health America
  • Highmark Blue Shield
  • Humana
  • John Hopkins Health Care
  • PA Medical Assistance
  • PA Medicare
  • Preferred Health Care
  • South Central Preferred
  • Tower Health PPO
  • Tricare
  • United Healthcare Community Plan
  • United Healthcare/ Mamsi
  • UPMC Health Plan
  • Vibra Health Plan



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