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

Susan Mastellone, DO

Individual provider Emergency Medicine Physician · NPI 1255379822

Susan Mastellone, DO is an Emergency Medicine Physician in Baltimore, Maryland. Licensed in Maryland. Registered with an NPI since 2006.

Licensed in
MD
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

3001 S Hanover St
Baltimore, MD 21225-1233
Phone: (410) 350-3509
Fax: (410) 350-3511
Show map & directions

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

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence H55662 (MD)

Record details

NPI number1255379822
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 3, 2006
Last updated in NPPESJuly 13, 2026

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