Doctor profile · Federal record

Dr. Daniel O'Brien, M.D.

Anesthesiology Physician (CMS: Anesthesiology) · Fitchburg, MA

  • NPI 1033144852
  • Accepts Medicare
  • 51 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
326 Nichols RD, Suite 16
Fitchburg, MA 014201914
(978) 665-5800
fax (978) 665-5802
Mailing address
Po Box 3008, Medical Anesthesiology Consultants
Lewiston, ME 042433008

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
November 15, 2007
Year of graduation
1975 — 51 yrs since
Specialty taxonomy
207L00000X — NUCC code
State license (1)
Massachusetts #58686
Medicaid
MA #3027147

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1033144852. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
172
Distinct HCPCS
4
Medicare allowed
$22,131
HCPCS Description Services Patients Avg allowed
00142 Anesthesia for lens surgery 102 101 $125
00811 Anesthesia for other procedure on large bowel using an endoscope 45 45 $127
00813 Anesthesia for procedure on small and large bowel using an endoscope 13 13 $156
00731 Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 12 12 $136

In context: peer comparison

Among 1 peers in this city , average services per provider: 43. This provider delivers 4.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$22
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Integra LifeSciences Corporation 1 $22.03

By nature of payment

Food and Beverage
$22

Frequently asked questions

Auto-generated from federal data
What is Dr. Daniel O'Brien's medical specialty?
Dr. Daniel O'Brien practices Anesthesiology Physician in Fitchburg, MA.
Where does Dr. Daniel O'Brien practice?
Dr. Daniel O'Brien practices at 326 Nichols RD, Fitchburg, MA 014201914. Office phone: 9786655800.
What is Dr. Daniel O'Brien's NPI?
Dr. Daniel O'Brien's National Provider Identifier (NPI) is 1033144852, issued by NPPES.
Does Dr. Daniel O'Brien accept Medicare assignment?
Yes. Dr. Daniel O'Brien accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Daniel O'Brien commonly perform?
Top Medicare-reported procedures in 2023: Anesthesia for lens surgery (HCPCS 00142); Anesthesia for other procedure on large bowel using an endoscope (HCPCS 00811); Anesthesia for procedure on small and large bowel using an endoscope (HCPCS 00813). Source: CMS Medicare Physician & Other Practitioners file.