Browse Health
Internist, Oncology Specialist (cancer)
37 years of experience
Video profile
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).

Learn more about Dr. Henry Sonneborn:

View the full profile to get information on:

  1. Qualifications
  2. What's important to you

View full profile

Patient Reviews

Have you visited Dr. Sonneborn? Share your experience.
Write a Review

Specialties & Research

Dr. Henry Sonneborn, MD is board certified in Internal Medicine and Medical Oncology.

Education & Awards

Dr. Sonneborn graduated from Albany Medical College.


Dr. Sonneborn has 3 hospital affiliations:

  • Portsmouth Regional Hospital 
  • Wentworth-Douglass Hospital 
  • Frisbie Memorial Hospital 

> > > > Dr. Henry Sonneborn, MD

Similar doctors nearby

Dr. Beata Summer-Brason

Internal Medicine
8 years experience
Portsmouth, NH

Dr. Charles Felton

Internal Medicine
33 years experience
Portsmouth, NH

Dr. Issam El Bizri

Internal Medicine
Portsmouth, NH

Dr. Paris Khavari

Internal Medicine
Portsmouth, NH

Dr. Michael Bianconi

Internal Medicine
26 years experience
Portsmouth, NH

Dr. Harold Hoefle

Family Medicine
Portsmouth, NH
Search All Similar Doctors
Additional Information
Dr. Henry Leo Sonneborn MD is a male Internist, has 37 years of experience and practices in Internal Medicine and Medical Oncology.
Where does Dr. Henry L. Sonneborn practice?
Dr. Henry Sonneborn has 3 office locations.
Dr. Henry Sonneborn practices Internal Medicine and Medical Oncology near Portsmouth, NH.
Additional practice locations include: Dover, NH.
See Portsmouth Internists and Portsmouth Oncologists.