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

Joseph H. O'Leary, MD

Individual provider Psychiatry Physician · NPI 1376689992

Joseph H. O'Leary, MD is a Psychiatry Physician in Reisterstown, Maryland. Practices as a sole proprietor and works from 4 locations. Licensed in Maryland.

Licensed in
MD
In the registry since
2007
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

1737 Oakland Rd
Reisterstown, MD 21136-5920
Phone: (443) 285-1004
Fax: (769) 207-4025
Show map & directions

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

Additional practice locations (3)

  • 3905 National Dr Ste 200, Burtonsville, MD 20866-6143 — (443) 285-1004
  • 10632 Little Patuxent Pkwy Ste 410, Columbia, MD 21044-3252 — (443) 285-1004
  • 1447 York Rd Ste 408, Timonium, MD 21093-6084 — (443) 285-1004

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence D0033845 (MD)

Record details

NPI number1376689992
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJanuary 30, 2007
Last updated in NPPESFebruary 5, 2024
Certification dateNovember 2, 2021

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