Quick answers
- Which hospitals does John Siano work at?
- Medicare's official clinician data lists John Siano at 1 hospital: Yale-New Haven Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John Siano see patients?
- Medicare's clinician data lists 2 practice locations, including Hamden, CT and Trumbull, CT. Call before your visit to confirm the address.
- What is John Siano's specialty?
- Medicare lists Ophthalmology as the primary specialty.
- Does John Siano accept Medicare assignment?
- Yes. Medicare's clinician data says John Siano 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 John Siano?
- (203) 288-2020, as listed in official Medicare / NPI Registry data.
- What is John Siano's NPI number?
- 1326509506. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John Siano works
Medicare's Facility Affiliation Data lists John Siano at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Yale-New Haven HospitalNew Haven, CT · Acute Care Hospital · CCN 070022
Practice locations
Addresses where John Siano is enrolled with Medicare (CMS data updated 2026-10-02).
- 2200 Whitney Ave, Suite 300Hamden, CT 06518 (203) 288‑2020
- 999 Silver Ln, Suite 2bTrumbull, CT 06611 (203) 445‑9320
Group practices
Medicare enrollment lists John Siano as a member of this group (CMS data updated 2026-10-02).
- Refocus Eye Health of Central Connecticut PC36 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Hamden
Clinicians with the same Medicare primary specialty in Hamden, CT — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | New York College Of Osteo Medicine Of New York Institute Of Technology |
| Graduation year | 2019 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1326509506 |
| 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