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

Dr. Mark Fares Sabbagh, MD, PHD

Individual provider Anatomic Pathology Physician · NPI 1639591340

Dr. Mark Fares Sabbagh, MD, PHD is a Pathology in Boston, Massachusetts. Graduated from Johns Hopkins University School of Medicine in 2021, 5 years ago. Practices with Massachusetts General Physicians Organization Inc, a 3,484-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
5
Trained at
Johns Hopkins University School of Medicine
Licensed in
MA
In the registry since
2014
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

55 Fruit St
Boston, MA 02114-2696
Phone: (617) 726-0367
Show map & directions

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

Additional practice locations (2)

  • 75 Francis St, Boston, MA 02115-6110 — (617) 732-5500
  • 600 N Wolfe St, Baltimore, MD 21287-2109 — (410) 955-5000

Specialties & licences

Anatomic Pathology Physician (primary) Taxonomy 207ZP0101X · Licence 1019280 (MA)
Anatomic Pathology & Clinical Pathology Physician Taxonomy 207ZP0102X · Licence 1019280 (MA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1639591340
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedJanuary 15, 2014
Last updated in NPPESDecember 2, 2025
Certification dateDecember 2, 2025

Medicare enrollment

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

Medicare specialtyPATHOLOGY
Medical schoolJOHNS HOPKINS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2021 (5 years in practice)
Group practice Massachusetts General Physicians Organization Inc — 3484 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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