Quick answers
- Which hospitals does Walter P. Mutter work at?
- Medicare's official clinician data lists Walter P. Mutter at 5 hospitals: Brigham and Women Faulkner Hospital, Brigham and Women's Hospital, Massachusetts General Hospital, Newton-Wellesley Hospital and North Shore Medical Center -. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Walter P. Mutter see patients?
- Medicare's clinician data lists 3 practice locations, including Wellesley, MA, Newton, MA and Boston, MA. Call before your visit to confirm the address.
- What is Walter P. Mutter's specialty?
- Medicare lists Nephrology as the primary specialty, and also Internal Medicine.
- Does Walter P. Mutter accept Medicare assignment?
- Yes. Medicare's clinician data says Walter P. Mutter 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 Walter P. Mutter offer telehealth?
- Medicare's clinician data says Walter P. Mutter offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Walter P. Mutter?
- (617) 219-1510, as listed in official Medicare / NPI Registry data.
- What is Walter P. Mutter's NPI number?
- 1104895556. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Walter P. Mutter works
Medicare's Facility Affiliation Data lists Walter P. Mutter 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 Faulkner HospitalJamaica Plain, MA · Acute Care Hospital · CCN 220119
- Brigham and Women's HospitalBoston, MA · Acute Care Hospital · CCN 220110
- Massachusetts General HospitalBoston, MA · Acute Care Hospital · CCN 220071
- Newton-Wellesley HospitalNewton, MA · Acute Care Hospital · CCN 220101
- North Shore Medical Center -Salem, MA · Acute Care Hospital · CCN 220035
Practice locations
Addresses where Walter P. Mutter is enrolled with Medicare (CMS data updated 2026-10-02).
- 195 Worcester St, Primary Care of WellesleyWellesley, MA 02481 (617) 219‑1510
- 2014 Washington StNewton, MA 02462 (617) 243‑6000
- 55 Fruit StBoston, MA 02114 (617) 724‑0287
Group practices
Medicare enrollment lists Walter P. Mutter as a member of these groups (CMS data updated 2026-10-02).
- Massachusetts General Physicians Organization Inc3,558 clinicians in the group
- Mass General Brigham Medical Group Suburban Massachusetts Inc602 clinicians in the group
Specialties
- Nephrologyprimary
- Internal Medicinealso
Other nephrologists in Massachusetts
Clinicians with the same Medicare primary specialty in Massachusetts — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Massachusetts Medical School |
| Graduation year | 1999 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1104895556 |
| 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