Browse Health
Gastroenterologist (digestive)
22 years of experience
Accepting new patients
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

  • Currently 3 of 4 stars
Patient comments (8)

The overall average patient rating of Dr. John Ahn is Good. Dr. Ahn has been reviewed by 28 patients who have provided 8 comments. The rating is 3 out of 4 stars.

Patient Ratings
Ease of Appointment 3.8
  • Currently 3.8333333333333 of 4 stars
Promptness 3.3
  • Currently 3.3333333333333 of 4 stars
Courteous Staff 3.8
  • Currently 3.8333333333333 of 4 stars
Accurate Diagnosis 3.8
  • Currently 3.75 of 4 stars
Bedside Manner 3.6
  • Currently 3.5833333333333 of 4 stars
Spends Time with Me 3.8
  • Currently 3.8333333333333 of 4 stars
Follows Up After Visit 4.0
  • Currently 4 of 4 stars

Specialties & Research

Dr. John Ahn, DO is board certified in Gastroenterology.

  • He has special expertise in 2 areas:
  • Colonoscopy
  • Sigmoidoscopy

Education & Awards

Dr. Ahn graduated from New York Institute of Technology, Old Westbury. He has 1 awards.

Compassionate Doctor Recognition (2012 - 2013)


Dr. Ahn has 7 hospital affiliations:

  • Mease Countryside Hospital 
  • Largo Medical Center 


  • Korean

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Additional Information
Dr. John Heejin Ahn DO is a male Internist, has 22 years of experience and practices in Gastroenterology.
Where does Dr. John H. Ahn practice?
Dr. John Ahn has 2 office locations.
Dr. John Ahn practices Gastroenterology near Safety Harbor, FL.
Additional practice locations include: Seminole, FL.
See Safety Harbor Gastroenterologists.