Physician Profile
Unclaimed ProfileAbout O'BRIEN
Based in Boston, MA, Michael J O'Brien, M.D. is listed in the NPI registry under sports medicine. Michael graduated from State University of New York at Buffalo School of Medicine in 1999. Michael is also listed as specialising in internal medicine.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What does Dr. O'Brien specialise in?
Dr. O'Brien is a sports medicine in Boston, MA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “SPORTS MEDICINE”.
NPI registry
Where is Dr. O'Brien located?
Dr. O'Brien is listed at 319 LONGWOOD AVE 6TH FLOOR, Boston, MA 02115. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. O'Brien's phone number?
The number on file is (617) 355-3501. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. O'Brien's NPI number?
Dr. O'Brien's National Provider Identifier is 1952335606. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. O'Brien go to medical school?
Dr. O'Brien attended State University of New York at Buffalo School of Medicine, graduating in 1999. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. O'Brien been practising?
Dr. O'Brien has 27 years experience. Calculated from a graduation year of 1999, reported in the CMS National Downloadable File.
CMS public data
What does Dr. O'Brien do most often?
According to Medicare billing data, Dr. O'Brien performs procedures including aspiration and/or injection of fluid from large joint. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. O'Brien confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. O'Brien. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (617) 355-3501
- Email not available
Practice Locations
319 LONGWOOD AVE 6TH FLOOR
Boston, MA 02115
Procedures Most Often Billed to Medicare
114 services · 32 patients · 2 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Aspiration and/or injection of fluid from large joint | Procedure | 20610 |
65 |
| Hyaluronan or derivative, euflexxa, for intra-articular injection, per dose | Drug given | J7323 |
49 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Is this your profile?
Verify your identity to control how patients — and AI assistants — describe you.
Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other sports medicines at this location 3
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 2
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 26 related providers in 4 groups
Other sports medicines in Boston 7
Same specialty, same city.
Trained at State University of New York at Buffalo School of Medicine 3
Other providers in the same specialty who trained at the same institution.
Class of 1999 at State University of New York at Buffalo School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Aspiration and/or injection of fluid from large joint 8
Providers in MA who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.