Individual
MARK J BRENNER
Active
Sole proprietor
No
Provider details
NPI number
Gender
Man
Credential
MD
Contact information
Practice address
1 EATON PL STE 100, WORCESTER, MA 01608
(508) 363-6881
(508) 363-7170
Mailing address
PO BOX 415348, BOSTON, MA 02241-5348
(800) 225-8885
(508) 334-1977
Taxonomy
Speciality
Code
Description
License number
State
2085R0001X
Radiation Oncology Physician
D0041640
MD
2085R0202X
Diagnostic Radiology Physician
Primary
54099
MA
Other
Other identifiers
Code
Description
Identifier
Issuer
State
05
—
110085074A
—
MA
05
—
168741700
—
MD
01
—
920004528
RR MEDICARE
MD
01
—
920007556
RAILROAD MEDICARE
MD
Enumeration date
03/02/2006
Last updated
05/26/2026
About Stedi
Stedi is the only programmable healthcare clearinghouse. You can use Stedi's APIs to process eligibility checks, claims, remits, and more.
Sign up