Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Michael J O'Brien, MD

Individual provider Sports Medicine (Internal Medicine) Physician · NPI 1952335606

Michael J O'Brien, MD is a Sports Medicine in Boston, Massachusetts. Graduated from State University of New York at Buffalo School of Medicine in 1999, 27 years ago. Practices with Children's Sports Medicine Foundation Inc, a 33-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
27
Trained at
State University of New York at Buffalo School of Medicine
Licensed in
MA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

319 Longwood Ave 6th Fl
Boston, MA 02115-5728
Phone: (617) 355-3501
Fax: (617) 355-0176
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Sports Medicine (Internal Medicine) Physician (primary) Taxonomy 207RS0010X · Licence 213465 (MA)

Record details

NPI number1952335606
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 10, 2006
Last updated in NPPESJune 6, 2008

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtySPORTS MEDICINE
Also practisesINTERNAL MEDICINE
Medical schoolSTATE UNIVERSITY OF NEW YORK AT BUFFALO SCHOOL OF MEDICINE
Graduated 1999 (27 years in practice)
Group practice Children'S Sports Medicine Foundation Inc — 33 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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