Quick answers
- Which hospitals does Michael J. Lai work at?
- Medicare's official clinician data lists Michael J. Lai at 2 hospitals: NY Eye and Ear Infirmary of Mount Sinai and Tufts Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Michael J. Lai see patients?
- Medicare's clinician data lists 4 practice locations, including Waltham, MA, Sandwich, MA and Boston, MA. Call before your visit to confirm the address.
- What is Michael J. Lai's specialty?
- Medicare lists Ophthalmology as the primary specialty.
- Does Michael J. Lai accept Medicare assignment?
- Yes. Medicare's clinician data says Michael J. Lai 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 Michael J. Lai?
- (781) 891-9300, as listed in official Medicare / NPI Registry data.
- What is Michael J. Lai's NPI number?
- 1932858735. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Michael J. Lai works
Medicare's Facility Affiliation Data lists Michael J. Lai at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- NY Eye and Ear Infirmary of Mount SinaiNew York, NY · Acute Care Hospital · CCN 330100
- Tufts Medical CenterBoston, MA · Acute Care Hospital · CCN 220116
Practice locations
Addresses where Michael J. Lai is enrolled with Medicare (CMS data updated 2026-10-02).
- 1440 Main StWaltham, MA 02451 (781) 891‑9300
- 282 Route 130Sandwich, MA 02563 (508) 833‑8222
- 50 Staniford St, Suite 600Boston, MA 02114 (617) 367‑4800
- 800 Washington StBoston, MA 02111 (617) 636‑5487
Group practices
Medicare enrollment lists Michael J. Lai as a member of these groups (CMS data updated 2026-10-02).
- Ophthalmic Consultants of Boston Inc68 clinicians in the group
- Pratt Ophthalmology Associates Inc53 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Waltham
Clinicians with the same Medicare primary specialty in Waltham, MA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Cooper Medical School Of Rowan University |
| Graduation year | 2022 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1932858735 |
| 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