Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Yio-Fan Deborah Hsu, MD

Individual provider Internal Medicine Physician · NPI 1588989529

Dr. Yio-Fan Deborah Hsu, MD is an Internal Medicine in Orange, California. Qualified in 2010, 16 years ago. Practices with Providence Medical Foundation, a 1,465-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
16
Licensed in
CA
In the registry since
2010
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2501 E Chapman Ave St Joseph Heritage Medical Group
Orange, CA 92869-3204
Phone: (714) 633-1011
Fax: (714) 633-4883
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A118854 (CA)

Record details

NPI number1588989529
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 1, 2010
Last updated in NPPESNovember 3, 2021
Certification dateNovember 3, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2010 (16 years in practice)
Group practice Providence Medical Foundation — 1465 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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