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Contact Information

BRIAN W OCONNOR, MD
20 TOWER OFFICE PARK
WOBURN, MA01801-2113
 Phone: 781-305-3300
 Fax: 781-305-3227
 Website:
 

Specialty

Taxonomy Code Specialty Code Provider Type

Addiction Medicine

2083A0300X 84 Physician/Preventive Medicine
Indicates primary specialty

NPI Profile & details for BRIAN W OCONNOR · (Male)

NPI # 1912991522
Status Active
Credentials MD
Entity Individual
Enumeration date 09/09/2005
Last updated 07/29/2025 - About 10 months ago
Sole proprietor 1 No
Identifiers
  • MA License # 72453
  • NH License # 20743
  • MA Medicaid 3079767
Hospital affiliation(s) Not Available
1 A sole proprietor/sole proprietorship is an individual, and as such, is eligible for a single NPI number. The sole proprietor must apply for the NPI number using his or her own Social Security Number (SSN), not an Employer Identification Number (EIN) even if he/she has an EIN.

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