Walter MutterMD
Internal Medicine, Nephrology
2027 Medicare Advantage
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Original Medicare
Original Medicare status
Most Medicare Supplement (Medigap) policies have no provider network: they help pay Original Medicare's cost sharing where Medicare is accepted. Medicare SELECT policies can require network providers for full benefits. Ask the office whether they accept Medicare.
Medicare enrollment and assignment have not been verified here. Advantage directory results do not answer this question.
No opt-out record in this CMS file. CMS's file covers data through 2026-08-31. This does not establish Medicare enrollment, assignment, or whether the office accepts new Medicare patients.
CMS opt-out source · Data through 2026-08-31 · Reviewed Oct 25, 2026
Where they practice
Practice location
Newton Wellesley Physicians Nephrology, Newton Wellesley Hospital, Green 460
Newton, MA 20462
- NPI issued
- 2006
- Registry record updated
- May 6, 2016
Medicare's clinician details aren't available on this page yet.
Questions
Common questions
Where does Walter Mutter practice?
Newton Wellesley Physicians Nephrology, Newton Wellesley Hospital, Green 460, Newton, MA 20462.
How do I confirm Walter is in my plan's network?
Call the member services number on your plan card and give them the NPI 1104895556, or ask a Silverpath advisor to check for you. It's free.
For providers
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