Quick answers
- Which hospitals does Gwynneth M. Johnson work at?
- Medicare's official clinician data lists Gwynneth M. Johnson at 3 hospitals: Beth Israel Deaconess Hospital - Needham, Beth Israel Deaconess Medical Center and Mount Auburn Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gwynneth M. Johnson see patients?
- Medicare's clinician data lists 1 practice location in Brookline, MA. Call before your visit to confirm the address.
- What is Gwynneth M. Johnson's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Gwynneth M. Johnson accept Medicare assignment?
- Yes. Medicare's clinician data says Gwynneth M. Johnson 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 Gwynneth M. Johnson offer telehealth?
- Medicare's clinician data says Gwynneth M. Johnson offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Gwynneth M. Johnson?
- (617) 734-3636, as listed in official Medicare / NPI Registry data.
- What is Gwynneth M. Johnson's NPI number?
- 1720527005. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Gwynneth M. Johnson works
Medicare's Facility Affiliation Data lists Gwynneth M. Johnson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Beth Israel Deaconess Hospital - NeedhamNeedham, MA · Acute Care Hospital · CCN 220083
- Beth Israel Deaconess Medical CenterBoston, MA · Acute Care Hospital · CCN 220086
- Mount Auburn HospitalCambridge, MA · Acute Care Hospital · CCN 220002
Practice locations
Addresses where Gwynneth M. Johnson is enrolled with Medicare (CMS data updated 2026-10-02).
- 637 Washington StBrookline, MA 02446 (617) 734‑3636
Group practices
Medicare enrollment lists Gwynneth M. Johnson as a member of this group (CMS data updated 2026-10-02).
- Medical Care of Boston Management Corporation292 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Brookline
Clinicians with the same Medicare primary specialty in Brookline, MA — not a recommendation.
Clinician information
| Graduation year | 2021 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1720527005 |
| 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