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

Dr. Mario D'Alessandro Jr., DO

Individual provider Emergency Medicine Physician · NPI 1609953918

Dr. Mario D'Alessandro Jr., DO is an Emergency Medicine Physician in Titusville, Pennsylvania. Licensed in Pennsylvania. Registered with an NPI since 2006.

Licensed in
PA
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.

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Practice location Address checks out

406 W Oak St
Titusville, PA 16354-1404
Phone: (814) 827-1851
Fax: (814) 827-1156
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 OS 004017-L (PA)

Record details

NPI number1609953918
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedNovember 1, 2006
Last updated in NPPESJuly 8, 2007

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