Dr. Marni L Nicholas MD Internist

Dr. Marni Nicholas is an internist in Portsmouth, New Hampshire and is affiliated with Portsmouth Regional Hospital. She received her medical degree from University of Rochester School of Medicine and Dentistry and has been in practice for 14 years. Dr. Nicholas accepts several types of health insurance, listed below. She is one of 24 doctors at Portsmouth Regional Hospital who specialize in Internal Medicine. She also speaks multiple languages, including Spanish.

Are you Dr. Nicholas? Edit Profile

Office Location

See Contact Information

Specialty & Clinical Interests

Internist: General Internal Medicine

Hospital Affiliation

Portsmouth Regional Hospital

Education & Medical Training

St Vincents Hospital - Medical Center New York
Residency, Internal Medicine, 2000–2003

University of Rochester School of Medicine and Dentistry
Class of 2000

St Vincents Hospital - Medical Center New York
Chief Residency, Internal Medicine, 2003–2004

Certifications & Licensure

International Society of Clinical Densitometry
Certified 8 years

American Board of Internal Medicine
Certified 11 years in Internal Medicine

NH State Medical License
Active through 2014

Insurances Accepted

  • Aetna Choice POS II
  • Aetna HMO
  • BCBS Blue Card PPO
  • CIGNA HMO
  • CIGNA Open Access
  • CIGNA PPO
  • First Health PPO
  • Great West PPO
  • Harvard Pilgrim HMO
  • Tufts Health Plan PPO
  • United Healthcare - Direct Choice Plus POS
  • United Healthcare - Direct Options PPO

Report a Correction — If you are aware of information on this page that is out of date or incorrect, please let us know.

Patient Advice & Support


See More
Our Doctor Finder includes most U.S. physicians. Doctors are not ranked, learn more.

Nearby Internists

See all Internists near Portsmouth, NH See all Internists in New Hampshire

Your Message Has Been Submitted

As part of our research on the correction you submitted, you may be contacted at the email address provided.

Sorry, Your Message Could Not Be Submitted

Please try again later, or E-mail your message to doctors@usnews.com and include the Web address (URL) of the page that contains incorrect information.