Summary

Dr. Sergio Casillas-Romero is a surgeon who specializes in colon and rectal surgery. He holds certifications from both the American Board of Colon & Rectal Surgery and the American Board of Surgery, demonstrating his expertise in these specialized areas. Dr. Casillas-Romero is fluent in both Spanish and English.

Dr. Casillas-Romero practices at The William W Backus Hospital and sees patients in Norwich and Waterford, Connecticut. He treats conditions such as hemorrhoids, diverticular disease, and colon polyps. His procedures include colonoscopy and lower GI endoscopy to help diagnose and treat digestive system concerns. Patients have given him an average rating of 4.2 out of 5 stars.

AI-generated from data on this provider profile.

Quick Facts

  • accepting new patients
  • 4.2
  • 41 insurance plans accepted
  • speaks Spanish, English
  • 7 written reviews
  • 1 specialty
  • 10 areas of expertise
  • 2 board certifications
  • 1 hospital affiliation
  • 2 office locations
  • Male

Office Locations

Dr Sergio Casillas-Romero has 2 locations

Hartford HealthCare Medical Group Specialty Care - Colorectal Surgery - Norwich

330 Washington St Ste 430Norwich, CT 06360

Hartford HealthCare Medical Group Specialty Care - Waterford

5 Dayton Rd Ste 201Waterford, CT 06385

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Dr Sergio Casillas-Romero, MD
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Dr Sergio Casillas-Romero, MDDr. Regina Kathryn Stuart, MDDr. Leszek Kolodziejczak, MDDr. Francis Siracusa, MD
SurgerySurgerySurgerySurgery
Accepts New Patients Accepts New Patients Accepts New Patients
4.2 
4.3 
4.6 
4.6 
41 Years of Experience 44 Years of Experience 46 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks Spanish, English Speaks English Speaks English, Polish Speaks Polish, English
Norwich , CTWillimantic , CTWillimantic , CTWillimantic , CT
Med School: Harvard Medical School Med School: Poznan University Of Medical Sciences Faculty Of Medicine I Med School: Albany Medical College
Current Profile
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Insurance Plans Accepted by Dr Sergio Casillas-Romero

  • AARP
  • Aetna
  • Aetna - HMO
  • Aetna - Medicare
  • Anthem Blue Cross
  • Blue Cross Blue Shield
  • CarePartners of Connecticut
  • CHAMPVA
  • Cigna
  • Cigna - HMO
  • ConnectiCare
  • ConnectiCare - Medicare
  • Empire Plan
  • First Health (Coventry Health Care)
  • Harvard Pilgrim Health Care
  • Harvard Pilgrim Health Care - HMO
  • Health New England
  • Health New England - HMO
  • Humana
  • Humana - HMO
  • Humana - Medicare
  • Medicaid - Medicaid
  • Medicaid - Medicaid (HMO Plans)
  • Medicaid - Medicaid (Managed)
  • Medicare
  • Medicare - Medicaid
  • Medicare - Medicare
  • Meritain Health
  • Neighborhood Health Plan
  • Optum Health
  • Oscar Health Insurance
  • Priority Health
  • Tricare
  • UnitedHealthcare
  • UnitedHealthcare - HMO
  • UnitedHealthcare - Medicare
  • UnitedHealthcare - Medicare (Advantage HMO)
  • UnitedHealthcare Oxford
  • UnitedHealthcare Oxford - HMO
  • Wellcare
  • Wellcare - Medicare

Medical Specialties

Dr Sergio Casillas-Romero has the following specialty

Specialty Expertise

Dr Sergio Casillas-Romero has the following 10 areas of expertise

  • Abdominal Pain
  • Banding
  • Bowel Resection
  • Colon Cancer
  • Colonoscopy
  • Diverticulitis
  • Hemorrhoidectomy
  • Hemorrhoids
  • Rectal Bleeding
  • Rectal Pain

Certifications, License, & Education

BOARD CERTIFICATIONS

American Board of Colon & Rectal Surgery

Colon and Rectal Surgery

American Board of Surgery

Surgery

MEDICAL LICENSE

Medical Doctor, Connecticut, 2026, Active

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Frequently Asked Questions

How can I make an appointment with Dr Sergio Casillas-Romero?
You can find contact information for Dr Sergio Casillas-Romero here on Vitals.
Is Dr Sergio Casillas-Romero accepting new patients?
Dr Sergio Casillas-Romero is accepting new patients on Vitals. View Dr Sergio Casillas-Romero's profile on Vitals to make an appointment.
Does Dr Sergio Casillas-Romero accept my insurance?
You can see the insurance plans that Dr Sergio Casillas-Romero accepts on their Vitals profile.
Which hospitals is Dr Sergio Casillas-Romero affiliated with?
Dr Sergio Casillas-Romero is affiliated with The William W Backus Hospital.
What languages does Dr Sergio Casillas-Romero speak?
Dr Sergio Casillas-Romero speaks Spanish and English.

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