Browse Health
Adolescent Specialist, Pediatrician
24 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).

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Specialties & Research

Dr. Jonathan Ellen, MD is board certified in Pediatrics and Pediatric Adolescent Medicine.

  • He has special expertise in 5 areas:
  • Chlamydia Infections
  • Drug Abuse (Substance-Related Addiction Disorders)
  • Gonorrhea
  • HIV Infections
  • STD (Sexually Transmitted Diseases)

Education & Awards

Dr. Ellen graduated from Temple University Physicians, Philadelphia. He has 3 awards.

One of America's Leading Experts on:
Chlamydia Infections
STD (Sexually Transmitted Diseases)


Dr. Ellen has 4 hospital affiliations:

  • The Johns Hopkins Hospital 
  • Johns Hopkins Bayview Medical Center 


  • English

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Additional Information
Dr. Jonathan Mark Ellen MD is a male Internist, has 24 years of experience and practices in Pediatrics, Pediatric Adolescent Medicine, and Adolescent Medicine.
Where does Dr. Jonathan M. Ellen practice?
Dr. Jonathan Ellen has 2 office locations.
Dr. Jonathan Ellen practices Pediatrics, Pediatric Adolescent Medicine, and Adolescent Medicine near Saint Petersburg, FL.
Additional practice locations include: Baltimore, MD.
See Saint Petersburg Pediatricians and Saint Petersburg Adolescent Specialists.