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

Dr. Mary E O'Brien, PHARMD

Individual provider Pharmacist · NPI 1417739970

Dr. Mary E O'Brien, PHARMD is a Pharmacist in Nottingham, Maryland. Practices as a sole proprietor. Licensed in Maryland.

Licensed in
MD
In the registry since
2023
What do these letters mean?
PHARMD — Doctor of Pharmacy
The professional degree required to practise as a pharmacist in the United States.

See every abbreviation used in this directory →

Practice location Address checks out

5230 Campbell Blvd
Nottingham, MD 21236-4983
Phone: (410) 933-9680
Fax: (443) 425-3296
Show map & directions

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

Specialties & licences

Pharmacist (primary) Taxonomy 183500000X · Licence 29490 (MD)

Record details

NPI number1417739970
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHARMD
Sole proprietorYes
NPI enumeratedOctober 19, 2023
Last updated in NPPESOctober 19, 2023
Certification dateOctober 19, 2023
Mailing address11550 Crossroads Cir Unit 187, Baltimore, MD 21220-2997

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