Sergio R. Casillas-Romero, MD.
NPI 1417035338ActiveIndividual· Colon & Rectal Surgery· Norwich, CT
Colon & Rectal Surgery (MD.) with Hartford Healthcare Medical Group Specialists PLLC, practicing in Norwich, Connecticut. 191 Medicare patients in 2024, $75,442 paid; nearly all of their 428 Part D prescriptions were generic (92%). Medtronic, Inc. was the largest of 2 companies reporting payments in 2024, $127.45 in all, mostly food and beverage. Lists William W Backus Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1417035338 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD. |
| Sole proprietor | No |
| NPI issued | Nov 1, 2006 |
| Last updated in NPPES | Oct 30, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Colon & Rectal Surgery Primary | 208C00000X | 41831 | CT |
| Surgery | 208600000X | 41831 | CT |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Colorectal Surgery (Proctology) (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 191 |
|---|---|
| Services billed | 336 across 68 procedure codes |
| Paid by Medicare | $75,442 |
Part D prescriptions in 2024
| Prescriptions (claims) | 428 · 442 30-day fills |
|---|---|
| Patients | 162 |
| Total drug cost | $17,231 |
| Generic share | 92% of claims |
Education and affiliations
| Graduation year | 1995 |
|---|---|
| Medicare specialty | Colorectal Surgery (Proctology) |
Medical group
- Hartford Healthcare Medical Group Specialists PLLCBridgeport, CT · 1,588 clinicians
Hospital affiliations
- William W Backus HospitalNorwich, CT
- Windham Community Memorial HospitalWillimantic, CT
Industry payments (Open Payments)
- 2024$127.45 · 5 payments from 2 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $101.38 | 4 |
| Axonics, Inc. | $26.07 | 1 |
What the 2024 payments were for
- Food and Beverage$127.45 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records