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

Dr. Ellen C Ko, MD

Individual provider Cytopathology Physician · NPI 1124047501

Dr. Ellen C Ko, MD is a Cytopathology Physician in Colton, California. Licensed in California. Registered with an NPI since 2006.

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.

See every abbreviation used in this directory →

Practice location Address checks out

400 N Pepper Avenue Armc Pathology
Colton, CA 92324
Phone: (909) 580-0010
Fax: (909) 580-0064
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anatomic Pathology & Clinical Pathology Physician (primary) Taxonomy 207ZP0102X · Licence G78277 (CA)
Cytopathology Physician Taxonomy 207ZC0500X · Licence G78277 (CA)

Record details

NPI number1124047501
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 18, 2006
Last updated in NPPESMarch 13, 2012
Mailing address400 N Pepper Avenue, Armc Pathology, Colton, CA 92324-1819

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