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

Dr. Michael John O'Brien, MD

Individual provider Obesity Medicine (Family Medicine) Physician · NPI 1891945952

Dr. Michael John O'Brien, MD is an Obesity Medicine (Family Medicine) Physician in Towson, Maryland. Practices as a sole proprietor. Licensed in Maryland.

Licensed in
MD
In the registry since
2008
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

810 Gleneagles Ct Ste 207
Towson, MD 21286-2203
Phone: (410) 823-5483
Fax: (410) 823-5734
Show map & directions

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

Specialties & licences

Obesity Medicine (Family Medicine) Physician (primary) Taxonomy 207QB0002X · Licence D35703 (MD)

Record details

NPI number1891945952
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedSeptember 25, 2008
Last updated in NPPESSeptember 25, 2008