Individual
DR. JEFFREY WILLIAM CLARK
Active
Sole proprietor
Provider details
NPI number
Gender
Man
Credential
MD
Contact information
Practice address
55 FRUIT ST, HEMATOLOGY ONCOLOGY YAW 7, BOSTON, MA 02114
(617) 724-4000
(617) 726-0452
Mailing address
PO BOX 9142, MASS GENERAL PHYSICIAN ORGANIZATION, CHARLESTOWN, MA 02129-9142
(617) 724-0287
(617) 726-2894
Taxonomy
Speciality
Code
Description
License number
State
207R00000X
Internal Medicine Physician
80647
MA
207RX0202X
Medical Oncology Physician
Primary
80647
MA
Other
Other identifiers
Code
Description
Identifier
Issuer
State
01
—
080647
TUFTS HEALTH PLAN
MA
05
—
3135420
—
MA
01
—
J31098
BCBS MA
MA
Enumeration date
02/15/2006
Last updated
02/03/2026
About Stedi
Stedi is the only programmable healthcare clearinghouse. You can use Stedi's APIs to process eligibility checks, claims, remits, and more.
Contact us