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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).

Learn more about Dr. Constantine Manthous:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (3)

The overall average patient rating of Dr. Constantine Manthous is Good. Dr. Manthous has been reviewed by 26 patients who have provided 3 comments. The rating is 3.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.0
Promptness 4.0
Courteous Staff 4.2
Accurate Diagnosis 4.0
Bedside Manner 3.9
Spends Time with Me 3.9
Follows Up After Visit 3.9

Specialties & Research

Dr. Constantine Manthous, MD is board certified in Internal Medicine and Critical Care Medicine.

  • He has special expertise in 7 areas:
  • Asthma
  • Ethics
  • Lung Diseases
  • Palliative Care
  • Septic Shock
  • Shock
  • Ventilator Weaning

Education & Awards

Dr. Manthous graduated from University of Connecticut , Farmington. He has 2 awards.

Bridges to Excellence Recognition
Physician Office Systems Recognition (2014 - 2016)
Level III
NCQA Physician Practice Connections - Patient Centered Medical Home (2014 - 2017)


  • Spanish
  • English
  • Greek

> > > > Dr. Constantine Manthous, MD

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Additional Information
Dr. Constantine A Manthous MD is a male Internist, has 24 years of experience and practices in Internal Medicine and Critical Care Medicine.
Where does Dr. Constantine A. Manthous practice?
Dr. Constantine Manthous has 3 office locations.
Dr. Constantine Manthous practices Internal Medicine and Critical Care Medicine near Niantic, CT.
Additional practice locations include: Southington, CT and New London, CT.
See Niantic Internists and Niantic Critical Care Practitioners.