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

Individual provider Internal Medicine Physician · NPI 1215983580

Dr. Joanne Ihm Koo, MD is an Internal Medicine Physician in Pomona, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
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

3530 W Pomona Blvd
Pomona, CA 91769-0100
Phone: (909) 595-1221
Fax: (909) 598-4352
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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 A36581 (CA)

Record details

NPI number1215983580
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 26, 2006
Last updated in NPPESJuly 13, 2026

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