Doctor profile · Federal record
Dr. Walter O'Donnell, MD
Critical Care Medicine (Internal Medicine) Physician (CMS: Pulmonary Disease) · Pulmonary Disease Physician · Boston, MA
- NPI 1356320758
- Accepts Medicare
- 40 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
55 Fruit Street, Pulmonary and Critical Care Cox2
Boston, MA 021142696
(617) 726-9112
fax (617) 643-2874 - Mailing address
-
Po Box 9142, Mass General Physician Organization
Charlestown, MA 021299142
Credentials & registration
- NPI registered
- January 2006 — 20 yrs on file
- Profile last updated
- May 5, 2014
- Year of graduation
- 1986 — 40 yrs since
- Specialty taxonomy
- 207RC0200X — NUCC code
- State license (1)
- Massachusetts #59532
- Medicaid
- MA #3080650
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1356320758. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
857
Distinct HCPCS
6
Medicare allowed
$125,762
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 394 | 209 | $153 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 201 | 165 | $104 | |
99291 |
Critical care, first 30-74 minutes | 135 | 44 | $225 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 76 | 34 | $126 | |
99443 |
Telephone medical discussion with physician, 21-30 minutes | 28 | 24 | $103 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 23 | 14 | $84 |
In context: peer comparison
Among 17 peers in Boston Critical Care Medicine (Internal Medicine) Physician, average services per provider: 92. This provider delivers 9.3× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
373
Patients
162
Total drug cost
$231,395
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Trelegy Ellipta (Fluticasone/Umeclidin/Vilanter) | Brand | 77 | 28 | $87,739 |
| Breztri Aerosphere (Budesonide/Glycopyr/Formoterol) | Brand | 73 | 27 | $57,317 |
| Anoro Ellipta (Umeclidinium Brm/Vilanterol Tr) | Brand | 51 | 16 | $40,604 |
| Omeprazole | Generic | 36 | 19 | $895 |
| Doxycycline Monohydrate | Generic | 34 | 31 | $547 |
| Prednisone | Generic | 27 | 19 | $154 |
| Azithromycin | Generic | 17 | 0 | $509 |
| Fluticasone Propionate | Generic | 17 | 11 | $382 |
| Methylprednisolone | Generic | 16 | 11 | $802 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 14 | 0 | $356 |
Hospital affiliations
Frequently asked questions
What is Dr. Walter O'Donnell's medical specialty?
Dr. Walter O'Donnell practices Critical Care Medicine (Internal Medicine) Physician in Boston, MA.
Where does Dr. Walter O'Donnell practice?
Dr. Walter O'Donnell practices at 55 Fruit Street, Boston, MA 021142696. Office phone: 6177269112.
What is Dr. Walter O'Donnell's NPI?
Dr. Walter O'Donnell's National Provider Identifier (NPI) is 1356320758, issued by NPPES.
Does Dr. Walter O'Donnell accept Medicare assignment?
Yes. Dr. Walter O'Donnell accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Walter O'Donnell commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Established patient office or other outpatient visit (HCPCS 99214); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.