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WALTER PETER MUTTER M.D.
NPI 1104895556
Internal Medicine - Nephrology in Newton, MA

Active since March 17, 2006PECOS EnrolledAccepts Medicare Assignment
NEWTON WELLESLEY PHYSICIANS NEPHROLOGY, NEWTON WELLESLEY HOSPITAL, GREEN 460, NEWTON, MA 20462(617) 243-5420 Get Directions Write a Review

NPPES record last updated: May 6, 2016. Verified against the NPPES registry weekly; last sync: August 23, 2026.

About Walter Peter Mutter M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WALTER PETER MUTTER M.D. (NPI 1104895556) is an individual nephrology provider in Newton, Massachusetts, licensed in Massachusetts (210130) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with North Shore Medical Center -, and is a graduate of University Of Massachusetts Medical School (1999).

NPPES Registry Identity

NPI1104895556
Entity TypeIndividualMale
Primary Taxonomy207RN0300X
Provider Legal NameWALTER PETER MUTTERCredential: M.D.
Location AddressNEWTON WELLESLEY PHYSICIANS NEPHROLOGY, NEWTON WELLESLEY HOSPITAL, GREEN 460Newton, MA 20462
Mailing AddressNewton Wellesley Hospital, Green 460, Newton Wellesley Physicians NephrologyNewton, MA 20462 · (617) 243-5420
Phone(617) 243-5420
Sole ProprietorNo
Medical School CMSUniversity Of Massachusetts Medical SchoolGraduated 1999
Enumeration DateMarch 17, 2006
Last NPPES UpdateMay 6, 2016
✔ NPI 1104895556 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License✔ Licensed in MA · 210130
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
Also ListedInternal MedicineTaxonomy 207R00000X · License 210130 (MA)
NEWTON WELLESLEY PHYSICIANS NEPHROLOGY, Newton, MA 20462
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Other Identifiers 7

Medicaid0167100MA
Medicare UPINH56631MA
Medicare ID-Type UnspecifiedMUA33649MD
Other5594198MA · First Health
Other210130MA · Tufts Health Plan
Other693019MA · Harvard Pilgrim Healthcar
OtherJ24722MA · Blue Cross Blue Sheild

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Walter Peter Mutter M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1254332976
PECOS Enrollment IDI20070124000225
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 12

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
599 services408 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
296 services120 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
224 services199 patients
Dialysis services, 1 physician visit per month (20 years or older) 90962
Dialysis is a treatment that filters and purifies your blood using a machine. It helps keep your fluids and electrolytes in balance when the kidneys can’t do their job. A physician visit once a month ensures your treatment is working effectively and adjusts it if necessary. This service is available for individuals aged 20 years and older.
135 services18 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
122 services116 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
105 services105 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

North Shore Medical Center -

Acute Care Hospitals · Salem, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220035
Location81 Highland AvenueSalem, MA 01970 · Essex County
Emergency services Birthing friendly

Massachusetts General Hospital

Acute Care Hospitals · Boston, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220071
Location55 Fruit StreetBoston, MA 02114 · Suffolk County
Emergency services Birthing friendly

Newton-Wellesley Hospital

Acute Care Hospitals · Newton, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220101
Location2014 Washington StreetNewton, MA 02462 · Middlesex County
Emergency services Birthing friendly

Brigham And Women's Hospital

Acute Care Hospitals · Boston, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220110
Location75 Francis StreetBoston, MA 02115 · Suffolk County
Emergency services Birthing friendly

Faulkner Hospital-Brigham And Women's

Acute Care Hospitals · Boston, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220119
Location1153 Centre StreetBoston, MA 02130 · Suffolk County
Emergency services

Referred Medical Equipment & Supplies CMS DME claims 4

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Tacrolimus, immediate release, oral, 1 mg J7507
Treatment-Treatment - Miscellaneous · category RX029N
2 suppliers13 claims900 services$0.31 avg. paid by Medicare
Mycophenolic acid, oral, 180 mg J7518
Treatment-Treatment - Miscellaneous · category RX029N
1 supplier11 claims990 services$0.96 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period Q0511
Treatment-Chemotherapy · category RH012N
2 suppliers13 claims13 services$17.50 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for a subsequent prescription in a 30-day period Q0512
Treatment-Chemotherapy · category RH012N
1 supplier11 claims13 services$12.65 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Walter Mutter's NPI number?

The NPI number for Walter Mutter is 1104895556. It was assigned to this individual provider in the NPPES registry on March 17, 2006.

Where is Walter Mutter located?

Walter Mutter practices at Newton Wellesley Physicians Nephrology Newton Wellesley Hospital, Green 460, Newton, MA 20462. The listed phone number is (617) 243-5420.

What is Walter Mutter's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Walter Mutter enrolled in Medicare?

Yes. Walter Mutter is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Walter Mutter accept?

Health plans from Anthem Blue Cross and Blue Shield list Walter Mutter as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Walter Mutter affiliated with any hospitals?

According to CMS data, Walter Mutter is affiliated with North Shore Medical Center -, Massachusetts General Hospital, Newton-Wellesley Hospital, Brigham And Women's Hospital and Faulkner Hospital-Brigham And Women's.

When was this NPI record last updated?

The NPPES record for Walter Mutter was last updated on May 6, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.