Quick answers
- Which hospitals does Matthew Williams work at?
- Medicare's official clinician data lists Matthew Williams at 3 hospitals: Bridgeport Hospital, Lawrence & Memorial Hospital and Yale-New Haven Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Matthew Williams see patients?
- Medicare's clinician data lists 1 practice location in New Haven, CT. Call before your visit to confirm the address.
- What is Matthew Williams's specialty?
- Medicare lists Thoracic Surgery as the primary specialty.
- Does Matthew Williams accept Medicare assignment?
- Yes. Medicare's clinician data says Matthew Williams 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.
- Does Matthew Williams offer telehealth?
- Medicare's clinician data says Matthew Williams offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Matthew Williams?
- (203) 785-2140, as listed in official Medicare / NPI Registry data.
- What is Matthew Williams's NPI number?
- 1679740005. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Matthew Williams works
Medicare's Facility Affiliation Data lists Matthew Williams at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Bridgeport HospitalBridgeport, CT · Acute Care Hospital · CCN 070010
- Lawrence & Memorial HospitalNew London, CT · Acute Care Hospital · CCN 070007
- Yale-New Haven HospitalNew Haven, CT · Acute Care Hospital · CCN 070022
Practice locations
Addresses where Matthew Williams is enrolled with Medicare (CMS data updated 2026-10-02).
- 800 Howard AveNew Haven, CT 06519 (203) 785‑2140
Group practices
Medicare enrollment lists Matthew Williams as a member of this group (CMS data updated 2026-10-02).
- Yale University2,645 clinicians in the group
Specialties
- Thoracic Surgeryprimary
Other thoracic surgeons in New Haven
Clinicians with the same Medicare primary specialty in New Haven, CT — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Duke University School Of Medicine |
| Graduation year | 1999 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1679740005 |
| 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