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

Dr. Jeffrey William Clark, MD

Individual provider Internal Medicine Physician · NPI 1710951751

Dr. Jeffrey William Clark, MD is a Hematology/Oncology in Boston, Massachusetts. Graduated from Tufts University School of Medicine in 1978, 48 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
48
Trained at
Tufts University School of Medicine
Licensed in
MA
In the registry since
2006
Specialties on file
2
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

55 Fruit St Hematology Oncology Yaw 7
Boston, MA 02114
Phone: (617) 724-4000
Fax: (617) 726-0452
Show map & directions

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

Medical Oncology Physician (primary) Taxonomy 207RX0202X · Licence 80647 (MA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 80647 (MA)

Record details

NPI number1710951751
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 15, 2006
Last updated in NPPESJuly 13, 2026
Certification dateFebruary 3, 2026

Medicare enrollment

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

Medicare specialtyHEMATOLOGY/ONCOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolTUFTS UNIVERSITY SCHOOL OF MEDICINE
Graduated 1978 (48 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

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