Quick answers
- Which hospitals does Kenneth M. Grundfast work at?
- Medicare's official clinician data lists Kenneth M. Grundfast at 2 hospitals: Boston Medical Center and Massachusetts Eye and Ear Infirmary -. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Kenneth M. Grundfast see patients?
- Medicare's clinician data lists 4 practice locations, including Newton, MA, Washington, DC and Boston, MA. Call before your visit to confirm the address.
- What is Kenneth M. Grundfast's specialty?
- Medicare lists Otolaryngology as the primary specialty.
- Does Kenneth M. Grundfast accept Medicare assignment?
- Yes. Medicare's clinician data says Kenneth M. Grundfast 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 Kenneth M. Grundfast?
- (617) 910-0368, as listed in official Medicare / NPI Registry data.
- What is Kenneth M. Grundfast's NPI number?
- 1336101054. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Kenneth M. Grundfast works
Medicare's Facility Affiliation Data lists Kenneth M. Grundfast 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
- Massachusetts Eye and Ear Infirmary -Boston, MA · Acute Care Hospital · CCN 220075
Practice locations
Addresses where Kenneth M. Grundfast is enrolled with Medicare (CMS data updated 2026-10-02).
- 2000 Washington St, Mob White 544Newton, MA 02462 (617) 910‑0368
- 2300 M St NWWashington, DC 20037 (202) 677‑6990
- 243 Charles StBoston, MA 02114 (617) 523‑7900
- 830 Harrison Ave, Suite 1400Boston, MA 02118 (617) 638‑8124
Group practices
Medicare enrollment lists Kenneth M. Grundfast as a member of these groups (CMS data updated 2026-10-02).
- Medical Faculty Associates, Inc672 clinicians in the group
- Massachusetts Eye and Ear Associates, Inc433 clinicians in the group
- Bumc Otolaryngologic Foundation Inc28 clinicians in the group
- New England Ear Nose and Throat LLC11 clinicians in the group
Specialties
- Otolaryngologyprimary
Other ENT doctors in Newton
Clinicians with the same Medicare primary specialty in Newton, MA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of Ny Upstate Medical University |
| Graduation year | 1969 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1336101054 |
| 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