Brian Oconnor, MD
NPI 1912991522 · Addiction Medicine (Preventive Medicine) Physician · Woburn, MA
Enrolled with Medicare as Practitioner - Addiction Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brian Oconnor, MD is a Addiction Medicine (Preventive Medicine) Physician provider in Woburn, MA (NPI 1912991522).
Provider details
- NPI number
- 1912991522
- Entity type
- Individual
- Primary specialty
- Addiction Medicine (Preventive Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 20743 (NH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,155 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 853 | $98 |
| Testing for Presence of Drug, By Chemistry Analyzers80307 | 664 | $61 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 230 | $138 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 176 | $17 |
| Assessment of Emotional Or Behavioral Problems96127 | 135 | $5 |
| Injection of Drug Or Substance Under Skin Or Into Muscle |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Buprenorphine Hcl/Naloxone Hclbrand: Buprenorphine-Naloxone | 308 | 60 |
| Buprenorphine Hcl | 52 | — |
| Lorazepam | 45 | — |
| Alprazolam | 39 | — |
| Dextroamphetamine/Amphetaminebrand: Dextroamphetamine-Amphetamine | 39 | — |
| Gabapentin | 36 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$147 across 6 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-09-09
- Last updated
- 2025-07-29
- Certified
- 2025-07-29
Frequently asked questions
- What is Brian Oconnor's NPI number?
- Brian Oconnor's National Provider Identifier (NPI) is 1912991522, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Oconnor's specialty?
- Brian Oconnor is listed in the NPPES registry with a primary specialty of Addiction Medicine (Preventive Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Brian Oconnor located?
- Brian Oconnor's practice location on file with NPPES is 20 Tower Office Park, Woburn, MA 01801-2113.
- What is Brian Oconnor's phone number?
- The practice phone number listed in the NPPES registry for Brian Oconnor is (781) 305-3300.
- Does Brian Oconnor accept Medicare?
- Brian Oconnor is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brian Oconnor's NPI active?
- Yes — Brian Oconnor's NPI (1912991522) is active in the NPPES registry as of the last update on 2025-07-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.