Doctor profile · Federal record

Dr. Brian Oconnor, MD

Addiction Medicine (Preventive Medicine) Physician (CMS: Obstetrics/Gynecology) · Addiction Medicine (Preventive Medicine) Physician · Woburn, MA

  • NPI 1912991522
  • Accepts Medicare
  • 42 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
20 Tower Office Park
Woburn, MA 018012113
(781) 305-3300
fax (781) 305-3227

Credentials & registration

NPPES · NUCC
NPI registered
September 2005 — 21 yrs on file
Profile last updated
July 29, 2025
Year of graduation
1984 — 42 yrs since
Specialty taxonomy
2083A0300X — NUCC code
State licenses (2)
Massachusetts #72453 · New Hampshire #20743
Medicaid
MA #3079767

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1912991522. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,842
Distinct HCPCS
3
Medicare allowed
$163,043
HCPCS Description Services Patients Avg allowed
80307 Testing for presence of drug, by chemistry analyzers 758 108 $61
99213 Established patient office or other outpatient visit, 20-29 minutes 754 95 $95
99214 Established patient office or other outpatient visit, 30-39 minutes 330 70 $137

In context: peer comparison

Among 1 peers in this city , average services per provider: 614. This provider delivers 3.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$147
Transactions
6
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Indivior Inc. 3 $83.23
Braeburn Inc. 2 $42.38
Alkermes, Inc. 1 $21.58

By nature of payment

Food and Beverage
$147

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
684
Patients
46
Total drug cost
$68,921
Drug Type Claims Patients Total cost
Buprenorphine-Naloxone (Buprenorphine Hcl/Naloxone Hcl) Brand 305 46 $38,807
Buprenorphine Hcl Generic 64 0 $2,424
Suboxone (Buprenorphine Hcl/Naloxone Hcl) Brand 58 0 $24,768
Lorazepam Generic 57 0 $836
Clonidine Hcl Generic 40 0 $418
Dextroamphetamine-Amphetamine (Dextroamphetamine/Amphetamine) Brand 35 0 $608
Quetiapine Fumarate Generic 28 0 $179
Gabapentin Generic 27 0 $310
Diazepam Generic 16 0 $203
Escitalopram Oxalate Generic 15 0 $127

Frequently asked questions

Auto-generated from federal data
What is Dr. Brian Oconnor's medical specialty?
Dr. Brian Oconnor practices Addiction Medicine (Preventive Medicine) Physician in Woburn, MA.
Where does Dr. Brian Oconnor practice?
Dr. Brian Oconnor practices at 20 Tower Office Park, Woburn, MA 018012113. Office phone: 7813053300.
What is Dr. Brian Oconnor's NPI?
Dr. Brian Oconnor's National Provider Identifier (NPI) is 1912991522, issued by NPPES.
Does Dr. Brian Oconnor accept Medicare assignment?
Yes. Dr. Brian Oconnor accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Brian Oconnor commonly perform?
Top Medicare-reported procedures in 2023: Testing for presence of drug, by chemistry analyzers (HCPCS 80307); Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.