Quick answers
- Where does William P. Meehan Iii see patients?
- Medicare's clinician data lists 2 practice locations, including Boston, MA and South Dennis, MA. Call before your visit to confirm the address.
- What is William P. Meehan Iii's specialty?
- Medicare lists Pediatric Medicine as the primary specialty, and also Emergency Medicine and Sports Medicine.
- Does William P. Meehan Iii accept Medicare assignment?
- Yes. Medicare's clinician data says William P. Meehan Iii 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 P. Meehan Iii?
- (617) 355-6000, as listed in official Medicare / NPI Registry data.
- What is William P. Meehan Iii's NPI number?
- 1558304584. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where William P. Meehan Iii is enrolled with Medicare (CMS data updated 2026-10-02).
- 300 Longwood AveBoston, MA 02115 (617) 355‑6000
- 860 Route 134, Suite 5and6South Dennis, MA 02660 (508) 385‑4212
Group practices
Medicare enrollment lists William P. Meehan Iii as a member of these groups (CMS data updated 2026-10-02).
- Physiotherapy Associates Inc1,460 clinicians in the group
- Children's Sports Medicine Foundation Inc33 clinicians in the group
Specialties
- Pediatric Medicineprimary
- Emergency Medicinealso
- Sports Medicinealso
Other pediatricians in Boston
Clinicians with the same Medicare primary specialty in Boston, MA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Harvard Medical School |
| Graduation year | 2002 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1558304584 |
| 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
- 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