1. Home
  2. Directory
  3. Massachusetts
  4. Boston
  5. Internal Medicine
  6. NPI Profile

DR. WALTER JOSEPH O'DONNELL MD
NPI 1356320758
Internal Medicine - Critical Care Medicine in Boston, MA

Active since January 13, 2006PECOS EnrolledAccepts Medicare Assignment
55 FRUIT STREET, PULMONARY AND CRITICAL CARE COX2, BOSTON, MA 02114(617) 726-9112(617) 643-2874 Get Directions Write a Review

NPPES record last updated: May 5, 2014. Verified against the NPPES registry weekly; last sync: August 23, 2026.

About Dr. Walter Joseph O'donnell Md NPPES

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

DR. WALTER JOSEPH O'DONNELL MD (NPI 1356320758) is an individual critical care medicine provider in Boston, Massachusetts, licensed in Massachusetts (59532) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS, is affiliated with North Shore Medical Center -, and is a graduate of Js Weill Medical College, Cornell University (1986).

NPPES Registry Identity

NPI1356320758
Entity TypeIndividualMale
Primary Taxonomy207RC0200X
Provider Legal NameDR. WALTER JOSEPH O'DONNELLCredential: MD
Location Address55 FRUIT STREET, PULMONARY AND CRITICAL CARE COX2Boston, MA 02114-2696
Mailing AddressPo Box 9142, Mass General Physician OrganizationCharlestown, MA 02129-9142 · (617) 726-9112 · Fax (617) 643-2874
Phone(617) 726-9112
Fax(617) 643-2874
Sole ProprietorNo
Medical School CMSJs Weill Medical College, Cornell UniversityGraduated 1986
Enumeration DateJanuary 13, 2006
Last NPPES UpdateMay 5, 2014
✔ NPI 1356320758 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Critical Care MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RC0200X
License✔ Licensed in MA · 59532
Definition
An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.
Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X · License 59532 (MA)
55 FRUIT STREET, Boston, MA 02114
Open in Google Maps ↗

Other Identifiers 5

Other730121MA · Tufts Health Plan
Medicare PINJ13081MA
OtherJ13081MA · Bcbs Ma
Medicare UPINF41378
Medicaid3080650MA

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

Dr. Walter Joseph O'donnell Md 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 ID2860432051
PECOS Enrollment IDI20050506000423
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 7

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 high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
412 services220 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
173 services60 patients
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.
163 services140 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
74 services49 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
63 services47 patients
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.
26 services25 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

Massachusetts Eye And Ear Infirmary -

Acute Care Hospitals · Boston, MA
OwnershipVoluntary non-profit - Private
CMS Certification Number220075
Location243 Charles StreetBoston, MA 02114 · Suffolk County
Emergency services

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02114 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$144.11 typical visit price
range $63.72 – $189.86
Typical copayment $36.02 (range $15.93 – $47.46)
Most-billed visit code 99204
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 3

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

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
3 suppliers16 claims16 services$14.92 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
6 suppliers52 claims52 services$69.00 avg. paid by Medicare
Portable oxygen concentrator, rental E1392
DME-Oxygen and Supplies · category DC002N
2 suppliers24 claims24 services$30.47 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KUI TOH GERARD LEONG M.D.
Internal Medicine (Cardiovascular Disease)
55 FRUIT STREET, MASSACHUSETTS GENERAL HOSPITAL
BOSTON, MA 02114
Suffolk County (617) 726-8862
MS. JACQUELINE BANGO LICSW
Social Worker (Clinical)
55 FRUIT STREET, FOUNDERS BUILDING SUITE 880
BOSTON, MA 02114
Suffolk County (617) 643-8281
SARA ELIZABETH GROSSLEIN PA
Physician Assistant
55 FRUIT STREET, WHITE 1
BOSTON, MA 02114
Suffolk County (617) 724-4100
JEFFREY M ELLENBOGEN M.D.
Psychiatry & Neurology (Neurology)
55 FRUIT STREET, WANG 720 (NEUROLOGY)
BOSTON, MA 02114
Suffolk County (617) 724-7419
DR. NANCY LEE HARRIS MD
Pathology (Anatomic Pathology & Clinical Pathology)
55 FRUIT STREET, WRN 2 PATHOLOGY ASSOCIATES
BOSTON, MA 02114
Suffolk County (617) 726-5155
DR. STANLEY YANG SHAW MD PHD
Internal Medicine (Cardiovascular Disease)
55 FRUIT STREET, YAW 5 CARDIAC UNIT ASSOCIATES
BOSTON, MA 02114
Suffolk County (617) 724-6750
LEONARDO V RIELLA M.D., PHD
Internal Medicine
55 FRUIT STREET, WHITE 5
BOSTON, MA 02114
Suffolk County (617) 726-5050
SUSAN MAHER CRNA
Nurse Anesthetist, Certified Registered
55 FRUIT STREET, CLN 309 MGH ANESTHESIA ASSOCIATES
BOSTON, MA 02114
Suffolk County (617) 726-3030

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 O'donnell's NPI number?

The NPI number for Walter O'donnell is 1356320758. It was assigned to this individual provider in the NPPES registry on January 13, 2006.

Where is Walter O'donnell located?

Walter O'donnell practices at 55 Fruit Street Pulmonary And Critical Care Cox2, Boston, MA 02114. The listed phone number is (617) 726-9112.

What is Walter O'donnell's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Is Walter O'donnell enrolled in Medicare?

Yes. Walter O'donnell 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.

Is Walter O'donnell affiliated with any hospitals?

According to CMS data, Walter O'donnell is affiliated with North Shore Medical Center -, Massachusetts General Hospital, Massachusetts Eye And Ear Infirmary -, Newton-Wellesley Hospital and Brigham And Women's Hospital.

When was this NPI record last updated?

The NPPES record for Walter O'donnell was last updated on May 5, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.