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

Irene Seungwan Sonu, MD

Individual provider Internal Medicine Physician · NPI 1801100300

Irene Seungwan Sonu, MD is a Gastroenterology in Palo Alto, California. Qualified in 2010, 16 years ago. Practices with Stanford Health Care, a 3,085-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
16
Licensed in
CA
In the registry since
2010
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

300 Pasteur Dr
Palo Alto, CA 94305-2200
Phone: (650) 723-4000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence A117977 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence A117977 (CA)

Record details

NPI number1801100300
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 27, 2010
Last updated in NPPESApril 16, 2024
Certification dateApril 16, 2024

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2010 (16 years in practice)
Group practice Stanford Health Care — 3085 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations6 on file with Medicare

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