Find a Doctor or Practice Location

You can also search for providers and practices at Penn Medicine Lancaster General Health or Princeton Health.

I am searching for a
Reset Form
John Charles Greenwood, MD

John Charles Greenwood, MD Physician

Assistant Professor of Emergency Medicine at the Hospital of the University of Pennsylvania Assistant Professor of Anesthesiology and Critical Care

Dr. Greenwood is employed by Penn Medicine.

No Patient Satisfaction Reviews
Why not?

There is no publicly available rating for this medical professional for one of the following reasons:

  1. He or she is not employed by Penn Medicine.
  2. He or she does not see patients in a medical practice setting.
  3. He or she sees patients but has not yet received the minimum 30 patient satisfaction reviews in the past 12 months, ensuring that the rating is statistically reliable and a true reflection of patient satisfaction.

Clinical Specialties


  • Emergency Medicine

Programs & Centers:

Board Certification:

  • Critical Care Medicine, 2015
  • Emergency Medicine, 2013

Practice Locations and Appointments

Insurance Accepted

  • Aetna US Healthcare
  • Amerihealth Caritas
  • Amerihealth Caritas Medicare
  • Cigna
  • Cigna HealthSpring
  • Clover Health Plan
  • CVS Health
  • Devon Health Services (Americare)
  • eLAP Services
  • Gateway Health Plan
  • Geisinger Health Plan
  • HealthAmerica / HealthAssurance, a Coventry Plan
  • HealthPartners
  • HealthPartners Medicare
  • HealthSmart
  • Highmark Blue Shield
  • Homestead Smart Health Plans
  • Horizon Blue Cross Blue Shield of New Jersey
  • Humana / Choicecare
  • Independence Blue Cross (Keystone East)
  • Intergroup
  • Keystone First
  • Keystone First Medicare
  • Multiplan
  • NJ Medicaid
  • NJ Qualcare
  • Oxford Health Plan
  • PA Health and Wellness (Centene) Medicare
  • PA Medicaid
  • PA Medicare
  • Preferred Health Care/LGH
  • Provider Partners Health Plan
  • Rail Road Medicare / Palmetto GBA
  • Remedy Partners at Penn Medicine
  • Tricare
  • United Healthcare
  • UnitedHealthcare Community Plan
  • US Family Health Plan
  • Veterans Choice Program

Education and Training

Medical School: Jefferson Medical College
Residency: University of Maryland Medical Center
Fellowship: University of Maryland Medical Center


American College of Emergency Physicians, National American College of Emergency Physicians-Critical Care Section, National American Heart Association, International Emergency Medicine Residency Association, National European Society of Intensive Care Medicine, International Extracorporeal Life Support Organization, International Society of Critical Care Medicine, SCCM EM Section, International University of Pennsylvania Cardiovascular Institute (CVI), Local University of Pennsylvania Center for Vascular Biology, Local

Hospital Affiliation

Dr. Greenwood is employed by Penn Medicine.

Hospital Privileges:

  • Hospital of the University of Pennsylvania: Has privileges to treat patients in the hospital.
  • Penn Presbyterian Medical Center: Has privileges to treat patients in the hospital.
  • Penn Presbyterian Medical Center: On the medical staff, but does not have privileges to treat patients in the hospital.


Selected Publications:

Mazzeffi M, Greenwood J, Tanaka K, et al.: Bleeding, Transfusion, and Mortality on Extracorporeal Life Support: ECLS Working Group on Thrombosis and Hemostasis. Ann Thorac Surg. 101 (2): 682-9,2016.

Greenwood JC, Winters ME.: Special Populations: Part I - Pulmonary Hypertension and Cardiac Transplant ACEP - Cardiovascular Emergencies in Emergency Medicine. : 2015.

Greenwood JC, Emlet LL, Mallemat HA, Winters ME (Eds).: PressorDex - A guide for vasoactive drugs, infusions, and other medications needed to treat the critically ill patient. (2nd Edition) Emergency Medicine Resident’s Association : 2014.

Greenwood JC, Lantry J, McCurdy MT: "ATS Innovations: University of Maryland Critical Care Fellowship Program”. Presented at the the 2014 American Thoracic Society Annual Conference. San Diego, CA American Thoracic Society : 2014.

Academic Contact Info

Department of Emergency Medicine
Department of Anesthesiology & Critical Care
3400 Spruce Street

Philadelphia, PA 19107
Patient appointments: 800-789-7366 (PENN)