Quick answers
- Which hospitals does Jay Mainthia work at?
- Medicare's official clinician data lists Jay Mainthia at 1 hospital: Boston Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jay Mainthia see patients?
- Medicare's clinician data lists 2 practice locations, including Boston, MA and Roslindale, MA. Call before your visit to confirm the address.
- What is Jay Mainthia's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Jay Mainthia accept Medicare assignment?
- Yes. Medicare's clinician data says Jay Mainthia 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 Jay Mainthia?
- (617) 323-4440, as listed in official Medicare / NPI Registry data.
- What is Jay Mainthia's NPI number?
- 1306420781. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jay Mainthia works
Medicare's Facility Affiliation Data lists Jay Mainthia at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Boston Medical CenterBoston, MA · Acute Care Hospital · CCN 220031
Practice locations
Addresses where Jay Mainthia is enrolled with Medicare (CMS data updated 2026-10-02).
- 1 Boston Medical Ctr PlBoston, MA 02118
- 4199 Washington StRoslindale, MA 02131 (617) 323‑4440
Group practices
Medicare enrollment lists Jay Mainthia as a member of these groups (CMS data updated 2026-10-02).
- Boston University Family Medicine Inc72 clinicians in the group
- Boston Medical Center Corporation20 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Boston
Clinicians with the same Medicare primary specialty in Boston, MA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Morehouse School Of Medicine |
| Graduation year | 2023 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1306420781 |
| 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