Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Henry T Mackiewicz

Individual provider Anesthesiology Physician · NPI 1386608974

Henry T Mackiewicz practises Anesthesiology in Brighton, Massachusetts. Qualified in 1993, 33 years ago. Practices with Brigham and Womens Physicians Organization Inc, a 2,916-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
33
Licensed in
MA
In the registry since
2006

Practice location Address checks out

736 Cambridge St
Brighton, MA 02135-2907
Phone: (617) 789-3000
Show map & directions

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

Additional practice locations (1)

  • 2100 Dorchester Ave, Dorchester, MA 02124-5615 — (617) 298-4632

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 216399 (MA)

Record details

NPI number1386608974
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedApril 12, 2006
Last updated in NPPESMarch 17, 2025
Certification dateMarch 17, 2025

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolOTHER
Graduated 1993 (33 years in practice)
Group practice Brigham And Womens Physicians Organization Inc — 2916 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients289
Services billed 316 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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 Brigham and Womens Physicians Organization Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2916 clinicians in the practice; 12 are shown here.

Other providers in Brighton