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

Dr. Paul Chao Yuan Sun, MD

Individual provider Specialist · NPI 1861599193

Dr. Paul Chao Yuan Sun, MD is an Otolaryngology in Laguna Hills, California. Graduated from Washington University School of Medicine in 1994, 32 years ago. Practices with Orange County Ear Nose and Throat, a 3-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
32
Trained at
Washington University School of Medicine
Licensed in
CA
In the registry since
2006
Specialties on file
2
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

24411 Health Center Dr Ste 600
Laguna Hills, CA 92653-3687
Phone: (949) 305-8000
Fax: (949) 305-8001
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 22 Odyssey Ste 100, Irvine, CA 92618-3186 — (949) 679-9000

Specialties & licences

Otolaryngology Physician (primary) Taxonomy 207Y00000X · Licence G86526 (CA)
Specialist Taxonomy 174400000X · Licence BS4682363 (CA)

Record details

NPI number1861599193
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 20, 2006
Last updated in NPPESAugust 16, 2019

Medicare enrollment

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

Medicare specialtyOTOLARYNGOLOGY
Medical schoolWASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 1994 (32 years in practice)
Group practice Orange County Ear Nose And Throat — 3 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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