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

Dr. Arnold Hoo Seto, MD

Individual provider Cardiovascular Disease Physician · NPI 1215081807

Dr. Arnold Hoo Seto, MD is a Cardiovascular Disease (Cardiology) in Orange, California. Graduated from Harvard Medical School in 2001, 25 years ago. Practices with Uc Regents, a 306-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
25
Trained at
Harvard Medical School
Licensed in
CA
In the registry since
2007
Specialties on file
3
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

101 The City Dr S
Orange, CA 92868-3201
Phone: (714) 456-6699
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Interventional Cardiology Physician (primary) Taxonomy 207RI0011X · Licence A81136 (CA)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence A81136 (CA)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence A81136 (CA)

Record details

NPI number1215081807
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 22, 2007
Last updated in NPPESJune 20, 2011
Mailing address101 The City Dr S, Orange, CA 92868-3201

Medicare enrollment

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

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Also practisesCRITICAL CARE (INTENSIVISTS)
Medical schoolHARVARD MEDICAL SCHOOL
Graduated 2001 (25 years in practice)
Group practice Uc Regents — 306 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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