Doctor profile · Federal record

Dr. Mark Brenner, MD

Diagnostic Radiology Physician (CMS: Radiation Oncology) · Radiation Oncology Physician · Worcester, MA

  • NPI 1902873409
  • Accepts Medicare
  • 45 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1 Eaton Pl Ste 100
Worcester, MA 01608
(508) 363-6881
fax (508) 363-7170
Additional location
20 Washington Sq
Worcester, MA 016044013
(508) 363-6218
Mailing address
Po Box 11760
Belfast, ME 049154008

Credentials & registration

NPPES · NUCC
NPI registered
March 2006 — 20 yrs on file
Profile last updated
April 22, 2025
Year of graduation
1981 — 45 yrs since
Specialty taxonomy
2085R0202X — NUCC code
State licenses (2)
Massachusetts #54099 · Maryland #D0041640
Medicaid (2)
MA #110085074A · MD #168741700

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1902873409. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
839
Distinct HCPCS
10
Medicare allowed
$63,065
HCPCS Description Services Patients Avg allowed
G6002 Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy 299 21 $21
77014 Ct guidance for insertion of radiation therapy fields 135 26 $44
77427 Radiation treatment management, 5 treatment sessions 110 30 $195
77300 Calculation of radiation therapy dose 69 27 $33
77334 Design and construction of complex radiation treatment device 43 19 $62
99213 Established patient office or other outpatient visit, 20-29 minutes 36 31 $67
77263 Complex radiation therapy planning 25 21 $172
77280 Obtaining data needed to develop the optimal radiation treatment, 1 treatment area 23 17 $39
77338 Design and construction of radiation treatment device for high precision radiation therapy 22 16 $220
99204 New patient office or other outpatient visit, 45-59 minutes 22 22 $129

In context: peer comparison

Among 64 peers in this city , average services per provider: 157. This provider delivers 5.3× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$144
Transactions
5
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
AstraZeneca Pharmaceuticals LP 3 $94.04
ABBVIE INC. 1 $27.82
Teleflex LLC 1 $21.88

By nature of payment

Food and Beverage
$144

Frequently asked questions

Auto-generated from federal data
What is Dr. Mark Brenner's medical specialty?
Dr. Mark Brenner practices Diagnostic Radiology Physician in Worcester, MA.
Where does Dr. Mark Brenner practice?
Dr. Mark Brenner practices at 1 Eaton Pl Ste 100, Worcester, MA 01608. Office phone: 5083636881.
What is Dr. Mark Brenner's NPI?
Dr. Mark Brenner's National Provider Identifier (NPI) is 1902873409, issued by NPPES.
Does Dr. Mark Brenner accept Medicare assignment?
Yes. Dr. Mark Brenner accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Brenner commonly perform?
Top Medicare-reported procedures in 2023: Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (HCPCS G6002); Ct guidance for insertion of radiation therapy fields (HCPCS 77014); Radiation treatment management, 5 treatment sessions (HCPCS 77427). Source: CMS Medicare Physician & Other Practitioners file.