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

David Chia-Ont Khan, MD

Individual provider Radiation Oncology Physician · NPI 1649274150

David Chia-Ont Khan, MD is a Radiation Oncology in El Segundo, California. Graduated from Oregon Health Sciences University School of Medicine in 1994, 32 years ago. Practices with The Regents of the University of California, a 32-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
32
Trained at
Oregon Health Sciences University School of Medicine
Licensed in
CA
In the registry since
2005
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

860 Parkview Dr N
El Segundo, CA 90245-4914
Phone: (310) 414-9990
Fax: (310) 943-2703
Show map & directions

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

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence A65774 (CA)

Record details

NPI number1649274150
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 13, 2005
Last updated in NPPESNovember 12, 2013

Medicare enrollment

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

Medicare specialtyRADIATION ONCOLOGY
Medical schoolOREGON HEALTH SCIENCES UNIVERSITY SCHOOL OF MEDICINE
Graduated 1994 (32 years in practice)
Group practice The Regents Of The University Of California — 32 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare