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

Young J. Ko, MD a Medical Corp

Organization Internal Medicine Physician · NPI 1891919700

Young J. Ko, MD a Medical Corp is an Internal Medicine Physician in Lancaster, California. Licensed in California. Registered with an NPI since 2007.

Licensed in
CA
In the registry since
2007
Specialties on file
3
What do these letters mean?
Corp — Corporation
A form of business registration, not a clinical qualification.

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Practice location Address checks out

44215 15th St W Ste 303
Lancaster, CA 93534-5505
Phone: (661) 945-0723
Fax: (661) 949-5740
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence A39814 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence A39814 (CA)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence A39814 (CA)

Record details

NPI number1891919700
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Young Ko — Ceo · (661) 945-0724
NPI enumeratedApril 12, 2007
Last updated in NPPESApril 20, 2011
Mailing address44215 15th St W Ste 303, Lancaster, CA 93534-5505

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