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

Michael Andrew Pfeffer, MBBS

Individual provider Hematology (Internal Medicine) Physician · NPI 1376074021

Michael Andrew Pfeffer, MBBS practises Hematology in Boston, Massachusetts. Qualified in 2016, 10 years ago. Practices with The General Hospital Corporation, a 1,276-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts.

Years since qualifying
10
Licensed in
MA
In the registry since
2017
Specialties on file
2
What do these letters mean?
MBBS — Bachelor of Medicine, Bachelor of Surgery
The medical degree awarded in the UK, India and many Commonwealth countries; equivalent to an MD.

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Practice location Address checks out

55 Fruit St
Boston, MA 02114-2621
Phone: (617) 231-9943
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 75 Francis St, Boston, MA 02115-6106 — (617) 732-5500

Specialties & licences

Hematology (Internal Medicine) Physician (primary) Taxonomy 207RH0000X · Licence 1014731 (MA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1376074021
Entity typeIndividual (Type 1)
GenderMale
Credentials MBBS
Sole proprietorNo
NPI enumeratedMarch 24, 2017
Last updated in NPPESMarch 5, 2026
Certification dateMarch 5, 2026

Medicare enrollment

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

Medicare specialtyHEMATOLOGY
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice The General Hospital Corporation — 1276 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
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 patients169
Services billed 297 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 The General Hospital Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1276 clinicians in the practice; 12 are shown here.

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