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

Dr. Karen Heather Koser, MD

Individual provider Pediatrics Physician · NPI 1861703787

Dr. Karen Heather Koser, MD is a Pediatrics Physician in Los Angeles, California. Licensed in California and New York. Registered with an NPI since 2010.

Licensed in
CA, NY
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 Partly verified

Some contact details are missing from the federal record.

Children's Hospital Of Los Angeles 4650 Sunset Blvd MS#53
Los Angeles, CA 90027
Phone: (323) 361-3849
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Developmental - Behavioral Pediatrics Physician (primary) Taxonomy 2080P0006X · Licence C162529 (CA)
Pediatrics Physician Taxonomy 208000000X · Licence 264944 (NY)

Record details

NPI number1861703787
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 24, 2010
Last updated in NPPESJanuary 19, 2023

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