Doctor profile · Federal record
Dr. Mario Ernesto Montealegre Gallegos, MD
Anesthesiology Physician (CMS: Anesthesiology) · Critical Care Medicine (Anesthesiology) Physician · Student in an Organized Health Care Education/Training Program · Boston, MA
- NPI 1255781225
- Accepts Medicare
- MIPS 71.7 / 100 · 2023
- 23 yrs in practice
- Licensed in 2 states
- Male
- Solo practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
330 Brookline Ave # Rabb239
Boston, MA 022155400
(617) 667-5048
fax (617) 667-5050 - Additional location
-
333 Cedar St # 3
New Haven, CT 065103206
(203) 502-4634 - Mailing address
-
333 Cedar St Dept of
New Haven, CT 065103206
Credentials & registration
- NPI registered
- June 2016 — 10 yrs on file
- Profile last updated
- June 6, 2022
- Year of graduation
- 2003 — 23 yrs since
- Specialty taxonomy
- 207L00000X — NUCC code
- State licenses (2)
- Connecticut #63039 · Massachusetts #268546
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1255781225. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
135
Distinct HCPCS
2
Medicare allowed
$25,386
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99291 |
Critical care, first 30-74 minutes | 109 | 36 | $221 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 26 | 14 | $52 |
In context: peer comparison
Among 267 peers in Boston Anesthesiology Physician, average services per provider: 32. This provider delivers 4.2× the peer median.Frequently asked questions
What is Dr. Mario Ernesto Montealegre Gallegos's medical specialty?
Dr. Mario Ernesto Montealegre Gallegos practices Anesthesiology Physician in Boston, MA.
Where does Dr. Mario Ernesto Montealegre Gallegos practice?
Dr. Mario Ernesto Montealegre Gallegos practices at 330 Brookline Ave # Rabb239, Boston, MA 022155400. Office phone: 6176675048.
What is Dr. Mario Ernesto Montealegre Gallegos's NPI?
Dr. Mario Ernesto Montealegre Gallegos's National Provider Identifier (NPI) is 1255781225, issued by NPPES.
Does Dr. Mario Ernesto Montealegre Gallegos accept Medicare assignment?
Yes. Dr. Mario Ernesto Montealegre Gallegos accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mario Ernesto Montealegre Gallegos commonly perform?
Top Medicare-reported procedures in 2023: Critical care (HCPCS 99291); Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231). Source: CMS Medicare Physician & Other Practitioners file.