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License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Patient Reviews

Patient comments (2)

The overall average patient rating of Dr. Paul Grena is Excellent. Dr. Grena has been reviewed by 18 patients who have provided 2 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.7
Promptness 4.4
Courteous Staff 3.9
Accurate Diagnosis 4.4
Bedside Manner 4.4
Spends Time with Me 3.9
Follows Up After Visit 2.3

Specialties & Research

Dr. Paul Grena, DO is board certified in Internal Medicine and Cardiovascular Disease.

  • He has special expertise in 5 areas:
  • Acute Coronary Syndrome (ACS)
  • Heart Block
  • High Blood Pressure (Hypertension)
  • High Cholesterol (Hypercholesterolemia)
  • Unstable Angina

Education & Awards

Dr. Grena graduated from UMDNJ, Newark. He has 4 awards.

Patients' Choice 5th Anniversary Award (2012)
Patients' Choice Award (2008 - 2012, 2014)
Compassionate Doctor Recognition (2011 - 2014)
On-Time Doctor Award (2014)


Dr. Grena has 12 hospital affiliations:

  • Frankford Hospital 
  • Albert Einstein Medical Center 


  • Spanish
  • Yiddish

> > > > Dr. Paul Grena, DO

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Additional Information
Dr. Paul Grena DO is a male Internist, has 24 years of experience and practices in Internal Medicine and Cardiovascular Disease.
Where does Dr. Paul Grena practice?
Dr. Paul Grena has 1 office location.
Dr. Paul Grena practices Internal Medicine and Cardiovascular Disease near Glen Mills, PA.
See Glen Mills Internists and Glen Mills Cardiologists.