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

Carlos R. Guzman, MD

Individual provider Anesthesiology Physician · NPI 1750556759

Carlos R. Guzman, MD practises Anesthesiology in Boston, Massachusetts. Qualified in 2001, 25 years ago. Practices with Mass General Brigham Medical Group, Inc, a 140-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
25
Licensed in
MA
In the registry since
2008
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

88 E Newton St Dept OF Anesthesiology
Boston, MA 02118-2308 Not confirmed with CMS for 16 years — call before visiting
Phone: (617) 638-6955
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 233460 (MA)

Record details

NPI number1750556759
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 30, 2008
Last updated in NPPESJune 30, 2010

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolOTHER
Graduated 2001 (25 years in practice)
Group practice Mass General Brigham Medical Group, Inc. — 140 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients163
Services billed 206 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Mass General Brigham Medical Group, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 140 clinicians in the practice; 12 are shown here.

Other providers in Boston