Quick answers
- Which hospitals does John A. Grimaldi Jr. work at?
- Medicare's official clinician data lists John A. Grimaldi Jr. at 1 hospital: Brigham and Women's Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John A. Grimaldi Jr. see patients?
- Medicare's clinician data lists 2 practice locations, including Boston, MA. Call before your visit to confirm the address.
- What is John A. Grimaldi Jr.'s specialty?
- Medicare lists Psychiatry as the primary specialty.
- Does John A. Grimaldi Jr. accept Medicare assignment?
- Yes. Medicare's clinician data says John A. Grimaldi Jr. 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.
- Does John A. Grimaldi Jr. offer telehealth?
- Medicare's clinician data says John A. Grimaldi Jr. offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for John A. Grimaldi Jr.?
- (617) 732-5500, as listed in official Medicare / NPI Registry data.
- What is John A. Grimaldi Jr.'s NPI number?
- 1720027832. 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 A. Grimaldi Jr. works
Medicare's Facility Affiliation Data lists John A. Grimaldi Jr. 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
Practice locations
Addresses where John A. Grimaldi Jr. is enrolled with Medicare (CMS data updated 2026-10-02).
- 221 Longwood AveBoston, MA 02115 (617) 732‑5500
- 75 Francis StBoston, MA 02115 (617) 732‑5500
Group practices
Medicare enrollment lists John A. Grimaldi Jr. as a member of this group (CMS data updated 2026-10-02).
- Brigham and Womens Physicians Organization Inc2,994 clinicians in the group
Specialties
- Psychiatryprimary
Other psychiatrists in Boston
Clinicians with the same Medicare primary specialty in Boston, MA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Vanderbilt University School Of Medicine |
| Graduation year | 1978 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1720027832 |
| 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