Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Sergio R Casillas-Romero, MD

Individual provider Colon & Rectal Surgery Physician · NPI 1417035338

Dr. Sergio R Casillas-Romero, MD is a Colorectal Surgery (Proctology) in Norwich, Connecticut. Qualified in 1995, 31 years ago. Practices with Hartford Healthcare Medical Group Specialists PLLC, a 1,537-clinician group and accepts Medicare assignment. Licensed in Connecticut.

Years since qualifying
31
Licensed in
CT
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

12 Case St Ste 313
Norwich, CT 06360-2222
Phone: (860) 204-9126
Fax: (860) 204-9146
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Colon & Rectal Surgery Physician (primary) Taxonomy 208C00000X · Licence 41831 (CT)
Surgery Physician Taxonomy 208600000X · Licence 41831 (CT)

Record details

NPI number1417035338
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 1, 2006
Last updated in NPPESOctober 30, 2015

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCOLORECTAL SURGERY (PROCTOLOGY)
Medical schoolOTHER
Graduated 1995 (31 years in practice)
Group practice Hartford Healthcare Medical Group Specialists Pllc — 1537 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount