Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mario Ernesto Montealegre Gallegos, MD

Individual provider Critical Care Medicine (Anesthesiology) Physician · NPI 1255781225

Mario Ernesto Montealegre Gallegos, MD is an Anesthesiology in Boston, Massachusetts. Qualified in 2003, 23 years ago. Practices with Yale University, a 2,618-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Connecticut and Massachusetts.

Years since qualifying
23
Licensed in
CT, MA
In the registry since
2016
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

330 Brookline Ave # RABB239
Boston, MA 02215-5400
Phone: (617) 667-5048
Fax: (617) 667-5050
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 333 Cedar St # 3, New Haven, CT 06510-3206 — (203) 502-4634

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 63039 (CT)
Critical Care Medicine (Anesthesiology) Physician Taxonomy 207LC0200X · Licence 63039 (CT)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X · Licence 268546 (MA)

Record details

NPI number1255781225
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 20, 2016
Last updated in NPPESJune 6, 2022
Certification dateJune 6, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyANESTHESIOLOGY
Also practisesCRITICAL CARE (INTENSIVISTS)
Medical schoolOTHER
Graduated 2003 (23 years in practice)
Group practice Yale University — 2618 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Boston