Summary

Dr. Constantine Manthous specializes in internal medicine and critical care medicine, bringing 38 years of experience to his practice. He earned his medical degree from the University of Connecticut School of Medicine and completed his residency at the University of Chicago Medicine. Dr. Manthous is fluent in both English and Spanish.

Dr. Manthous is affiliated with Lawrence And Memorial Hospital and practices in Niantic, Connecticut, as well as Westerly, Rhode Island, and New London, Connecticut. He focuses on treating patients with serious breathing problems and shock conditions. His expertise includes therapeutic hypothermia and working with physical therapy teams to help patients rebuild their strength. Patients have given him an average rating of 3.7 out of 5 stars.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 3.7
  • 38 years of experience
  • speaks English, Spanish
  • University Of Chicago Medicine
  • 9 written reviews
  • 2 specialties
  • 7 areas of expertise
  • 1 hospital affiliation
  • 3 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Constantine A Manthous has 3 locations

Donka Goldberg Manthous And Thompson Medical Group

22 W Main StNiantic, CT 06357
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

The Westerly Hospital

25 Wells StWesterly, RI 02891

Lawrence And Memorial Hospital

365 Montauk AveNew London, CT 06320

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Dr. Constantine A Manthous, MDDr. Osama Kandalaft, MDKerry L. Folkman, MSN, NP-CEric Harker
Internal MedicineInternal MedicineInternal MedicineInternal Medicine
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
3.7 
38 Years of Experience 12 Years of Experience 16 Years of Experience 25 Years of Experience
No Virtual Visit Option No Virtual Visit Option Virtual Visit Available Virtual Visit Available
Speaks English, Spanish Speaks English Speaks English Speaks English
Niantic , CTGuilford , CTBrookline , MALyons , CO
Med School: University Of Connecticut School Of Medicine Med School: Royal College Of Surgeons In Ireland School Of Medicine Med School: Regis College Med School: Duke University School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Constantine A Manthous

  • Accepts Medicare
  • Accepts Medicaid

Medical Specialties

Dr. Constantine A Manthous has the following 2 specialties

Specialty Expertise

Dr. Constantine A Manthous has the following 7 areas of expertise

  • Asthma
  • Critical Care Medicine
  • Ethics
  • Lung Diseases
  • Palliative Care
  • Shock
  • Ventilator Weaning

Certifications, License, & Education

38 Years Experience

Dr. Constantine A Manthous holds an active medical license in the state of Connecticut.

Medical License

Medical Doctor with an active medical license in the state of Connecticut that expired in 2026.

Education & Training

Residency

Completed their residency at University Of Chicago Medicine.

Medical School

Graduated from University Of Connecticut School Of Medicine in 1988.

NPI Number

Dr. Manthous' NPI number is 1780643759.

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Frequently Asked Questions

What languages does Dr. Constantine Manthous speak?
Dr. Constantine Manthous speaks English and Spanish.
Which hospitals is Dr. Constantine Manthous affiliated with?
Dr. Constantine Manthous is affiliated with Lawrence And Memorial Hospital.
Where is Dr. Constantine Manthous's office located?
Dr. Constantine Manthous's office is located at 22 W Main St, Niantic, CT, 06357.
Does Dr. Constantine Manthous accept my insurance?
You can see the insurance plans that Dr. Constantine Manthous accepts on their Vitals profile.
Does Dr. Constantine Manthous accept virtual/telehealth appointments?
Dr. Constantine Manthous has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.

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