Quick answers
- Which hospitals does William J. Farrell work at?
- Medicare's official clinician data lists William J. Farrell at 5 hospitals: Hartford Hospital, Middlesex Hospital, Midstate Medical Center, William W Backus Hospital and Yale-New Haven Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William J. Farrell see patients?
- Medicare's clinician data lists 4 practice locations, including Wallingford, CT, Cheshire, CT and Meriden, CT. Call before your visit to confirm the address.
- What is William J. Farrell's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
- Does William J. Farrell accept Medicare assignment?
- Yes. Medicare's clinician data says William J. Farrell accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for William J. Farrell?
- (203) 265-9831, as listed in official Medicare / NPI Registry data.
- What is William J. Farrell's NPI number?
- 1417951203. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where William J. Farrell works
Medicare's Facility Affiliation Data lists William J. Farrell at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Hartford HospitalHartford, CT · Acute Care Hospital · CCN 070025
- Middlesex HospitalMiddletown, CT · Acute Care Hospital · CCN 070020
- Midstate Medical CenterMeriden, CT · Acute Care Hospital · CCN 070017
- William W Backus HospitalNorwich, CT · Acute Care Hospital · CCN 070024
- Yale-New Haven HospitalNew Haven, CT · Acute Care Hospital · CCN 070022
Practice locations
Addresses where William J. Farrell is enrolled with Medicare (CMS data updated 2026-10-02).
- 1062 Barnes Rd, Suite 300Wallingford, CT 06492 (203) 265‑9831
- 280 S Main St, Fl 2Cheshire, CT 06410 (203) 265‑9831
- 435 Lewis AveMeriden, CT 06451
- 80 Seymour StHartford, CT 06102 (860) 545‑7500
Group practices
Medicare enrollment lists William J. Farrell as a member of these groups (CMS data updated 2026-10-02).
- Hartford Hospital1,044 clinicians in the group
- Midstate Medical Center186 clinicians in the group
- Consulting Cardiologists PC23 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Connecticut →
Other cardiologists in Wallingford
Clinicians with the same Medicare primary specialty in Wallingford, CT — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Iowa, Rj & L Carver College Of Medicine |
| Graduation year | 1987 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1417951203 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians