Quick answers
- Which hospitals does William M. Tang work at?
- Medicare's official clinician data lists William M. Tang at 3 hospitals: Brigham and Women's Hospital, Metrowest Medical Center and Newton-Wellesley Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William M. Tang see patients?
- Medicare's clinician data lists 1 practice location in Natick, MA. Call before your visit to confirm the address.
- What is William M. Tang's specialty?
- Medicare lists Ophthalmology as the primary specialty.
- Does William M. Tang accept Medicare assignment?
- Yes. Medicare's clinician data says William M. Tang 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 M. Tang?
- (508) 903-0003, as listed in official Medicare / NPI Registry data.
- What is William M. Tang's NPI number?
- 1972540177. 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 M. Tang works
Medicare's Facility Affiliation Data lists William M. Tang at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Brigham and Women's HospitalBoston, MA · Acute Care Hospital · CCN 220110
- Metrowest Medical CenterFramingham, MA · Acute Care Hospital · CCN 220175
- Newton-Wellesley HospitalNewton, MA · Acute Care Hospital · CCN 220101
Practice locations
Addresses where William M. Tang is enrolled with Medicare (CMS data updated 2026-10-02).
- 182 W Central St, Suite 102Natick, MA 01760 (508) 903‑0003
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Massachusetts
Clinicians with the same Medicare primary specialty in Massachusetts — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Johns Hopkins University School Of Medicine |
| Graduation year | 1993 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1972540177 |
| 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