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

Individual provider Emergency Medicine Physician · NPI 1578943544

Theresa Hsiao, DO is an Emergency Medicine Physician in Philadelphia, Pennsylvania. Licensed in Pennsylvania. Registered with an NPI since 2015.

Licensed in
PA
In the registry since
2015
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

5501 Old York Rd
Philadelphia, PA 19141-3018
Phone: (215) 456-3834
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence OT016588 (PA)

Record details

NPI number1578943544
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 4, 2015
Last updated in NPPESDecember 8, 2021

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