Kenneth M. Grundfast, M.D.
Otolaryngology Physician · Boston, MA
Kenneth M. Grundfast, M.D. is an otolaryngology physician with a practice address in Boston, Massachusetts, and NPI 1336101054, issued on Apr 6, 2006. Check the license (Massachusetts 160725, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Kenneth M. Grundfast
- Credential
- M.D.
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License numbers
- 160725 MA
MD6119 DC
Self-reported in NPPES; status is on the state search - Practice location
- 820 Harrison Ave, Boston, MA 02118
- Phone
- (617) 638-7934
- Enumerated
- Apr 6, 2006
- Record last updated
- Nov 3, 2023
- Medicaid ID
- 110061841A MA
- Medicare enrollment
- Enrolled (PECOS I20110620000229); accepts Medicare assignment
- Medical or professional school
- State University Of Ny Upstate Medical University, 1969
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 364 in Massachusetts → Look up another NPI →
Also registered at 820 Harrison Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Kathleen Finn, NPAdult Health Nurse Practitioner1578795449
- Zoha Huda, MDStudent in an Organized Health Care Education/Training Program1205577459
- Jordan Justice, MDDiagnostic Radiology Physician1497556526
- Mark Kettler, MDDiagnostic Radiology Physician1790790202
- Julian McDonald, MBCHBStudent in an Organized Health Care Education/Training Program1194392928
Verify Kenneth M. Grundfast in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 160725Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through 4 group practices
- Bumc Otolaryngologic Foundation IncBoston, MA
- Massachusetts Eye And Ear Associates, IncBoston, MA
- Medical Faculty Associates, IncWashington, DC
- New England Ear Nose And Throat LLCNewton, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kenneth M. Grundfast among 364 otolaryngology physician records in Massachusetts
Kenneth M. Grundfast, M.D. is one of 364 otolaryngology physician records with a practice address in Massachusetts. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 15% of them.
- NPI issued2006 · 15% of these records are older, 54% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1969 · median 2004 among the 239 with a school on file
- Record last updated2023 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in Massachusetts
There are 364 otolaryngology physician records in Massachusetts.
All 364 in Massachusetts → Every provider in Boston → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Arthur Cohn, MDBoston, MA 021181467438861
- Elizabeth Davis, M.D.Boston, MA 021181104930007
- Anand Devaiah, M.D.Boston, MA 021181043272453
- Waleed Ezzat, M.D.Boston, MA 021181821118837
- Richard Grentzenberg, M.D.Boston, MA 021181538122536
- Gregory Grillone, M.D.Boston, MA 021181679535892
- Andrew Kleinberger, MDBoston, MA 021181598925208
- Jessica Levi, MDBoston, MA 021181235305087
Common questions
What is Kenneth M. Grundfast, M.D.'s NPI number?
Kenneth M. Grundfast, M.D.'s National Provider Identifier (NPI) is 1336101054, issued on Apr 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Kenneth M. Grundfast, M.D. located?
The NPPES record lists a practice address at 820 Harrison Ave, Boston, MA, 02118. Phone: (617) 638-7934. Providers update this record themselves, so call before visiting.
How can I verify Kenneth M. Grundfast, M.D.'s license?
NPPES lists Massachusetts license number 160725, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.