Doctor profile · Federal record

Dr. WALTER MUTTER, M.D.

Nephrology Physician (CMS: NEPHROLOGY) · Internal Medicine Physician · NEWTON, MA

  • NPI 1104895556
  • Accepts Medicare
  • 27 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
NEWTON WELLESLEY PHYSICIANS NEPHROLOGY, NEWTON WELLESLEY HOSPITAL, GREEN 460
NEWTON, MA 20462
(617) 243-5420
Mailing address
NEWTON WELLESLEY HOSPITAL, GREEN 460, NEWTON WELLESLEY PHYSICIANS NEPHROLOGY
NEWTON, MA 20462

Credentials & registration

NPPES · NUCC
NPI registered
March 2006 — 20 yrs on file
Profile last updated
May 6, 2016
Year of graduation
1999 — 27 yrs since
Specialty taxonomy
207RN0300X — NUCC code
State license (1)
Massachusetts #210130
Medicaid
MA #0167100

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1104895556. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,916
Distinct HCPCS
10
Medicare allowed
$248,417
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 586 353 $140
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 344 120 $84
99213 Established patient office or other outpatient visit, 20-29 minutes 208 173 $99
90962 Dialysis services, 1 physician visit per month (20 years or older) 200 24 $218
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 168 142 $138
90935 Hemodialysis procedure with physician evaluation 153 33 $76
99204 New patient office or other outpatient visit, 45-59 minutes 115 115 $182
99443 Telephone medical discussion with physician, 21-30 minutes 45 41 $140
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 25 15 $124
99221 Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 24 24 $88

In context: peer comparison

Among 3 peers in this city , average services per provider: 131. This provider delivers 15× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$60
Transactions
5
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Travere Therapeutics, Inc. 5 $59.98

By nature of payment

Education
$60

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
623
Patients
155
Total drug cost
$21,745
Drug Type Claims Patients Total cost
Losartan Potassium Generic 112 37 $1,675
Amlodipine Besylate Generic 90 37 $794
Lisinopril Generic 85 27 $1,445
Torsemide Generic 55 23 $2,134
Hydrochlorothiazide Generic 43 17 $369
Potassium Chloride Generic 35 0 $736
Potassium Citrate Er (Potassium Citrate) Brand 33 14 $5,942
Irbesartan Generic 24 0 $407
Atorvastatin Calcium Generic 23 0 $363
Valsartan Generic 22 0 $670

Hospital affiliations

CMS Hospital Compare