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

John Ks Chia, MD

Individual provider Internal Medicine Physician · NPI 1801876412

John Ks Chia, MD is an Infectious Disease in Torrance, California. Graduated from University of California, Geffen School of Medicine in 1979, 47 years ago. Practices with Id Med a Medical Corporation, a 5-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
47
Trained at
University of California, Geffen School of Medicine
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

23430 Hawthorne Blvd Ste 200
Torrance, CA 90505-4730
Phone: (310) 784-5880
Fax: (310) 325-3117
Show map & directions

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

Specialties & licences

Infectious Disease Physician (primary) Taxonomy 207RI0200X · Licence G43168 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence G43168 (CA)

Record details

NPI number1801876412
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 19, 2006
Last updated in NPPESApril 11, 2018
Mailing address23430 Hawthorne Blvd Ste 200, Torrance, CA 90505-4730

Medicare enrollment

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

Medicare specialtyINFECTIOUS DISEASE
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF CALIFORNIA, GEFFEN SCHOOL OF MEDICINE
Graduated 1979 (47 years in practice)
Group practice Id Med A Medical Corporation — 5 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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